A09.06 Low-Frequency Noise and Data Centre Development – Perspectives for Developers

Key Takeaways

• Developer perspectives on data centre low-frequency noise, examining planning, design and international experience.
• International experience suggests that low-frequency noise is most effectively addressed during planning and design rather than after facilities commence operation.
• Data centre developers increasingly consider acoustic performance alongside technical, environmental and planning requirements during project development.
• Early assessment of potential low-frequency noise may reduce future community concerns and support more transparent planning decisions.
• International experience indicates that planning-stage engagement can provide greater flexibility for mitigation than retrospective operational modifications.
• Malaysia has an opportunity to strengthen dialogue on low-frequency noise while its data centre sector is still expanding.

Introduction

This article forms part of the Malaysia Data Centre Observatory (MDCO) Analyse series on Low-Frequency Noise (LFN), beginning with →A09 Understanding Low-Frequency Noise from Data Centres, from which additional articles examining the engineering, community, governance and policy dimensions of low-frequency noise are also accessible.

The series has progressively examined the subject from multiple stakeholder perspectives.

→E02.02 Low Frequency Noise How Humans Hear Sound Beyond Decibels introduced the engineering principles underlying low-frequency noise and explained why conventional A-weighted measurements may not always fully represent the acoustic characteristics of large mechanical infrastructure.

→A09.01 Why Low-Frequency Noise Becomes a Community Conflict examined five case studies from the United States, illustrating how operational low-frequency noise may evolve into broader disputes involving planning, governance, nuisance claims and community trust.

→A09.05 Low-Frequency Noise and Infrastructure Governance: Lessons from European Case Studies explored how European jurisdictions have increasingly addressed similar issues through planning law, environmental assessment, administrative review and, in some cases, human rights frameworks.

Most recently, →A09.04 Data Centre Low Frequency Noise in Planning Approval by Local Councils examined the current Malaysian experience, where discussions remain focused primarily on planning processes, public participation and stakeholder engagement rather than operational litigation.

Taken together, these articles demonstrate that low-frequency noise is rarely an engineering issue alone.

Instead, it sits at the intersection of acoustics, planning, environmental governance, infrastructure development and community experience.

A Different Perspective

Having examined the issue from the perspectives of engineers, communities and governance, this article turns to another important stakeholder:

the data centre developer and project proponent.

Developers occupy a unique position within the development process.

They are responsible not only for delivering technically complex infrastructure, but also for navigating planning requirements, environmental assessments, engineering constraints, construction programmes and stakeholder expectations.

Many of the factors that influence future acoustic performance—including site selection, equipment layout, building configuration and the integration of mitigation measures—are considered long before a facility begins operation.

Consequently, decisions made during the planning and design stages may have lasting implications for both operational performance and community acceptance.

Understanding this perspective is therefore essential to understanding how low-frequency noise may be addressed before it develops into a community concern.

Scope of This Article

The purpose of this article is not to prescribe engineering standards or recommend particular industry practices.

Nor does it seek to assess the performance of any individual developer or project.

Instead, the article examines how international experience suggests that low-frequency noise is increasingly considered during the planning and design of modern data centres, and why early-stage decisions may influence later operational outcomes.

Drawing upon international case studies, published industry guidance and the broader themes identified throughout the MDCO Low-Frequency Noise series, the article explores how planning-stage consideration may contribute to more informed decision-making before facilities become operational.

This perspective complements the previous articles in the series.

If E02.02 explains the engineering, A09.01 explains the community experience, A09.05 examines governance and A09.04 documents the emerging Malaysian planning context, this article considers where developers fit within that wider picture.

Why This Perspective Matters

International experience demonstrates that many disputes associated with operational low-frequency noise do not originate only when equipment begins operating.

Rather, they often reflect decisions made much earlier in the project lifecycle.

The selection of a site, the arrangement of cooling equipment, the orientation of buildings, the relationship between industrial infrastructure and nearby sensitive receptors, and the assumptions adopted during planning assessments may all influence future acoustic performance.

By the time a facility becomes operational, opportunities for major design changes are often more limited.

Accordingly, understanding how low-frequency noise is considered during planning is not merely a technical exercise.

It is also a question of project governance, risk management and long-term community confidence.

For Malaysia, where large-scale data centre development continues to expand rapidly, this timing is particularly significant.

Many projects are still progressing through planning, design or construction, providing an opportunity to examine how potential low-frequency noise may be considered before operational experience becomes more widespread.

MDCO Insight: Effective management of low-frequency noise often begins during project planning and design, long before a data centre becomes operational.

Why Low-Frequency Noise Matters to Developers

At first glance, low-frequency noise (LFN) may appear to be primarily an engineering or environmental issue.

In practice, however, international experience suggests that it is also a project development issue.

For developers and project proponents, the significance of acoustic performance extends beyond compliance with planning conditions or environmental regulations. Decisions made during the early stages of a project can influence construction schedules, stakeholder relationships, operational performance and long-term asset management.

Accordingly, consideration of low-frequency noise is increasingly associated not only with technical performance, but also with the successful delivery of major infrastructure projects.

Beyond Regulatory Compliance

Compliance with applicable planning approvals and environmental requirements remains a fundamental objective of every infrastructure project.

However, international experience demonstrates that regulatory compliance alone does not necessarily prevent community concerns from emerging.

Several of the United States cases examined in →A09.01 involved operators maintaining that their facilities complied with applicable requirements while neighbouring residents continued to report persistent disturbance.

Similarly, the European cases reviewed in →A09.05 illustrate that planning approval does not always conclude public discussion, particularly where communities believe that broader environmental or quality-of-life issues have not been adequately addressed.

These experiences suggest that developers increasingly operate within two complementary frameworks:

• regulatory compliance, which determines whether statutory requirements have been satisfied; and
• community confidence, which influences the broader acceptance of a project over its operational life.

Although these frameworks are closely related, they are not necessarily identical.

Understanding both is therefore important for the long-term success of large-scale infrastructure developments.

Planning Certainty and Project Delivery

Large data centres are complex developments involving substantial investment, multiple regulatory approvals and extensive coordination between project teams, consultants, contractors and authorities.

Planning certainty is therefore a valuable project objective.

Where potential environmental issues are identified and addressed during planning, developers generally have greater flexibility to incorporate design changes before construction begins.

Conversely, if significant concerns emerge only after a facility becomes operational, the available options may become more limited.

International case studies demonstrate that operational disputes can result in:

• additional technical investigations;
• engineering modifications;
• extended stakeholder engagement;
• regulatory review;
• legal proceedings in some jurisdictions.

While each project differs, these experiences illustrate why developers may seek to identify potential issues as early as practicable within the project lifecycle.

From a project management perspective, early consideration often provides greater certainty than responding to issues after commissioning.

Community Confidence and Social Licence

Modern data centres are designed to operate continuously over many years.

As a result, long-term relationships with surrounding communities have become increasingly relevant.

Internationally, the concept of a social licence to operate has gained prominence across many forms of infrastructure development.

Although not a formal legal requirement, the concept recognises that community confidence may influence how projects are perceived throughout their operational life.

For developers, this may include:

• maintaining open communication;
• responding to community enquiries;
• explaining technical information;
• demonstrating environmental performance;
• addressing concerns where appropriate.

This provides an opportunity for constructive dialogue while projects remain in their earlier stages of development.

Operational Flexibility and Long-Term Performance

Many design decisions that influence acoustic performance are made well before a facility becomes operational.

Examples include:

• site selection;
• building orientation;
• equipment layout;
• cooling system configuration;
• architectural design;
• integration of acoustic mitigation measures.

Once major mechanical systems have been installed and commissioned, opportunities for substantial redesign are generally more constrained.

International experience therefore suggests that planning-stage consideration may provide greater flexibility than retrospective operational modification.

This observation is not unique to low-frequency noise.

It reflects a broader engineering principle that many aspects of long-term operational performance are influenced by decisions made during design.

Investment Protection and Project Value

Data centres are typically developed as long-life infrastructure assets.

Developers and investors therefore have an interest in ensuring that facilities continue to operate efficiently and predictably over many years.

Unexpected operational disputes may introduce additional uncertainty through:

• further technical investigations;
• modifications to infrastructure;
• additional stakeholder engagement;
• changes to operating procedures.

The likelihood and significance of these outcomes vary considerably between projects.

Nevertheless, international experience demonstrates that consideration of environmental and community issues during planning may contribute to greater confidence in long-term project delivery.

In this sense, acoustic performance may be viewed not only as a technical consideration but also as one element of broader project resilience.

ESG and Responsible Infrastructure Development

Environmental, Social and Governance (ESG) considerations have become increasingly prominent within infrastructure investment and corporate governance.

For data centre developers, ESG discussions frequently include topics such as:

• energy efficiency;
• greenhouse gas emissions;
• water stewardship;
• biodiversity;
• community engagement;
• governance and transparency.

Although low-frequency noise is not always discussed separately within ESG frameworks, it intersects with several of these broader themes.

Community concerns relating to operational impacts, planning transparency and stakeholder engagement all form part of the wider discussion regarding responsible infrastructure development.

As expectations regarding sustainability continue to evolve, developers may increasingly consider how environmental performance and community relationships contribute to long-term project success.

A Reactive Approach and a Planning-Stage Approach

The international cases reviewed throughout this MDCO series illustrate two contrasting pathways by which low-frequency noise may be addressed.

In some instances, attention to acoustic issues increased only after facilities commenced operation and communities began reporting persistent disturbance.

The sequence often followed a pattern similar to:

Operational commencement
↓
Community complaints
↓
Technical investigations
↓
Engineering modifications
↓
Higher cost and reduced design flexibility

By contrast, planning-stage consideration provides an alternative pathway.

Potential acoustic issues may be examined before construction through activities such as site planning, equipment selection and design optimisation.

This pathway may be summarised as:

Planning and design
↓
Early acoustic assessment
↓
Design optimisation
↓
Greater operational flexibility
↓
Reduced need for retrospective modification

These pathways should not be interpreted as universal outcomes for every project.

Rather, they illustrate why international experience increasingly emphasises consideration of potential acoustic issues during the earlier stages of project development, when a wider range of design options remains available.

Looking Ahead

The preceding discussion explains why low-frequency noise has become relevant to developers beyond questions of regulatory compliance alone.

The next question is therefore:

At what stage of the development process are these considerations most likely to influence future outcomes?

To explore this question, the next section examines the project lifecycle and considers why the planning and design stages often provide the greatest opportunity to address potential low-frequency noise before facilities become operational.

MDCO Insight: For developers, low-frequency noise is increasingly considered not only as an acoustic issue, but also as part of project planning, risk management and long-term infrastructure performance.

The Planning Stage: Where Future Outcomes Are Shaped

The international case studies examined throughout this MDCO series suggest a common observation:

Many operational low-frequency noise (LFN) disputes do not begin when a facility starts operating.

Rather, they often originate from decisions made much earlier during planning and design.

By the time residents experience persistent operational noise, many of the key decisions that influence acoustic performance—including site selection, equipment arrangement and building configuration—have already been made.

Consequently, the planning stage represents more than a regulatory approval process.

It is also the stage at which many opportunities to avoid future community conflict remain available.

The Project Lifecycle

Although every project differs, the development of a modern data centre typically follows a broadly similar sequence.

Site Selection
↓
Master Planning
↓
Concept Design
↓
Planning Submission
↓
Environmental Studies
↓
Acoustic Assessment
↓
Equipment Selection
↓
Building Layout
↓
Planning Approval
↓
Construction

While these stages are presented sequentially, they often overlap and influence one another throughout the design process.

Viewed collectively, they illustrate that planning is not a single event but a progressive process in which successive decisions shape future operational outcomes.

Site Selection: The First Planning Decision

The earliest opportunity to influence future acoustic outcomes occurs before any building is designed.

Site selection determines the relationship between the proposed facility and its surrounding environment.

Factors commonly considered include:

• existing land use;
• zoning;
• proximity to residential areas;
• transport infrastructure;
• electricity supply;
• water availability;
• environmental constraints.

From an acoustic perspective, the location of nearby noise-sensitive receptors—such as homes, schools, hospitals and places of worship—may influence subsequent planning considerations.

International experience demonstrates that projects located within established industrial areas generally present different planning considerations from those proposed immediately adjacent to residential communities.

This does not imply that one location is universally appropriate or inappropriate.

Rather, it illustrates that site context influences the range of planning issues requiring consideration.

Master Planning: Establishing the Overall Development Strategy

Once a site has been identified, master planning establishes the overall arrangement of the development.

At this stage, planners begin considering:

• building locations;
• access roads;
• electrical infrastructure;
• cooling systems;
• landscape buffers;
• future expansion.

Although acoustic performance is only one of many considerations, decisions made during master planning may influence the physical relationship between major mechanical infrastructure and surrounding land uses.

Master planning therefore represents an opportunity to integrate operational requirements with broader planning objectives before detailed engineering design begins.

Concept Design: Integrating Multiple Disciplines

During concept design, architects, engineers and specialist consultants begin translating planning objectives into an integrated project.

Numerous disciplines work simultaneously, including:

• civil engineering;
• structural engineering;
• mechanical engineering;
• electrical engineering;
• architecture;
• fire engineering;
• environmental planning.

Acoustic considerations form one component within this wider multidisciplinary process.

Because many aspects of the project remain flexible during concept design, alternative layouts and configurations can generally be evaluated more readily than after detailed design has been completed.

Planning Submission: Translating Design into Public Decision-Making

Planning submission represents the point at which technical design enters the regulatory process.

Planning authorities consider proposals against applicable planning legislation, development plans and relevant technical information.

Depending on jurisdiction and project characteristics, submissions may include documentation relating to:

• land use;
• environmental impacts;
• infrastructure capacity;
• traffic;
• drainage;
• visual impacts;
• specialist technical studies.

For projects located near sensitive land uses, planning submissions also become an important mechanism through which authorities and communities understand the anticipated characteristics of the proposed development.

Accordingly, the quality and clarity of information presented during planning may influence subsequent stakeholder confidence as much as the final decision itself.

Environmental Studies: Understanding the Wider Context

Large infrastructure developments commonly require environmental studies to assess potential impacts before construction.

These studies extend beyond individual technical disciplines.

They examine how the proposed development interacts with its surrounding environment.

Depending on applicable regulatory requirements, environmental studies may consider:

• land use compatibility;
• ecology;
• water resources;
• transport;
• air quality;
• landscape;
• cumulative environmental effects.

Acoustic assessment is often one component within this broader environmental context.

This integrated approach reflects an important principle of modern infrastructure planning:

Noise is rarely considered in isolation.

Instead, it forms part of a wider assessment of environmental performance and community impact.

Acoustic Assessment: Predicting Before Building

Unlike operational monitoring, planning-stage acoustic assessment is predictive.

Its purpose is to estimate potential acoustic performance before construction begins.

Internationally, predictive assessments may assist planners and designers in evaluating how different design options could influence future operational outcomes.

Examples may include consideration of:

• equipment location;
• building orientation;
• screening elements;
• spatial separation from sensitive receptors.

The objective is not to eliminate every future uncertainty.

Rather, it is to inform planning decisions using the best information reasonably available during project development.

This predictive approach explains why many international planning systems consider acoustic assessment before construction rather than waiting until facilities become operational.

Equipment Selection and Building Layout

As project design progresses, equipment selection and building layout become increasingly detailed.

These decisions are influenced by many factors, including:

• operational requirements;
• energy efficiency;
• resilience;
• maintainability;
• project cost;
• available space.

Internationally, acoustic performance may also be considered alongside these broader engineering objectives.

Similarly, building layout may influence how mechanical systems relate to surrounding land uses through the positioning of plant areas, service yards and external equipment.

Although detailed engineering solutions vary between projects, these examples illustrate that acoustic outcomes are influenced by multiple design decisions rather than by any single component.

Planning Approval and Construction

Once approvals have been obtained, projects proceed into construction.

By this stage, the fundamental planning decisions have generally been established.

While detailed refinements may continue throughout construction, opportunities for major changes to site planning, building arrangement or infrastructure configuration are typically more limited than during earlier stages.

This does not mean that operational improvements are impossible.

Indeed, several of the United States cases examined in →A09.01 demonstrate that operators implemented engineering modifications after community concerns emerged.

However, those cases also illustrate that retrospective modifications may involve additional investigation, design and implementation after facilities are already operating.

From a planning perspective, this distinction is significant.

The greatest flexibility generally exists before construction begins.

Planning as an Opportunity Rather Than an Obstacle

The planning process is sometimes viewed primarily as a regulatory requirement.

International experience suggests a broader perspective.

Planning provides an opportunity to identify potential issues while alternative design approaches remain available and before long-term operational conditions are established.

This observation applies not only to low-frequency noise but also to many aspects of infrastructure development, including transport, drainage, visual impact and environmental performance.

Accordingly, the planning stage should not be understood solely as an approval process.

It is also the stage at which technical design, environmental assessment, governance and community expectations first converge.

For developers, planning therefore represents an opportunity to consider how future operational performance may be influenced by decisions made long before the first servers are commissioned.

Looking Ahead

The project lifecycle demonstrates that many factors influencing future acoustic performance are considered before construction begins.

This naturally raises a further question:

How have developers and planning authorities in different jurisdictions approached these issues in practice?

The next section draws together lessons from the United States, Europe and Malaysia to examine how international experience increasingly points towards planning-stage consideration as the most effective opportunity to address low-frequency noise before it develops into a community conflict.

MDCO Insight: Many operational noise disputes originate from decisions made during planning and design rather than during facility operation.

Lessons from International Experience

The previous articles in this MDCO Low-Frequency Noise (LFN) series examined the issue from three complementary perspectives.

The United States cases demonstrated how operational low-frequency noise can develop into community conflict after facilities commence operation.

The European cases illustrated how planning systems, environmental assessment and administrative processes increasingly seek to address potential impacts before projects proceed.

In Malaysia, cases showed that discussions are currently centred primarily on planning, consultation and stakeholder engagement rather than operational litigation.

Although each jurisdiction has developed within its own legal and planning framework, a common pattern nevertheless emerges.

The greatest opportunity to manage low-frequency noise often exists before a facility becomes operational.

United States: Responding After Community Concerns Emerged

The five United States case studies examined in →A09.01 Why Low-Frequency Noise Becomes a Community Conflict illustrate how operational experience frequently became the catalyst for subsequent action.

In several cases, community concerns emerged only after facilities had commenced operation and residents began reporting persistent humming, vibration or other low-frequency characteristics associated with continuous industrial infrastructure.

Once complaints were raised, operators responded through various measures, including:

• commissioning additional acoustic investigations;
• identifying potential noise sources;
• implementing engineering modifications;
• engaging specialist consultants;
• increasing communication with affected communities.

These responses demonstrate that developers and operators were prepared to investigate reported concerns and, in several cases, introduce mitigation measures.

However, the case studies also demonstrate the practical limitations of retrospective action.

Once facilities have been commissioned, significant changes to equipment layout, building configuration or site planning may be more difficult than during the design stage.

Consequently, some disputes continued despite engineering modifications, particularly where differences remained between measured compliance and community experience.

The United States experience therefore does not suggest that operational mitigation is ineffective.

Rather, it demonstrates that mitigation introduced after complaints arise may involve greater complexity than consideration during earlier planning stages.

Europe: Planning Before Operation

The European case studies reviewed in →A09.05 Low-Frequency Noise and Infrastructure Governance: Lessons from European Case Studies reveal a different emphasis.

Rather than relying primarily on post-operational dispute resolution, many European jurisdictions have progressively strengthened planning procedures, environmental assessment and public participation before major infrastructure projects receive approval.

Across the cases examined, courts frequently considered questions relating to:

• environmental assessment;
• planning procedures;
• public consultation;
• administrative decision-making;
• proportionality;
• procedural fairness.

Although the legal contexts differed considerably, the underlying principle remained consistent.

Potential environmental impacts should, wherever reasonably practicable, be examined before development proceeds.

This approach does not eliminate future disputes.

Nor does planning approval guarantee that community concerns will never arise.

However, it reflects an increasing recognition that early assessment provides a broader range of options than retrospective intervention after facilities become operational.

For developers, this provides greater opportunity to incorporate environmental considerations into project design while flexibility remains.

Malaysia: A Window of Opportunity

Malaysia’s current experience provides an opportunity to examine these international observations in a different context. Rather than focusing on established operational disputes, current discussions remain focused primarily on:

• planning processes;
• public participation;
• stakeholder engagement;
• environmental considerations;
• infrastructure capacity.

Unlike several overseas examples, Malaysia has not yet experienced major litigation specifically concerning operational low-frequency noise from data centres.

Most public discussions have occurred while projects are:

• proposed;
• undergoing planning approval;
• under construction;
• recently commissioned.

From a planning perspective, this timing is significant.

It suggests that Malaysia retains an opportunity to consider potential acoustic issues before large numbers of facilities have accumulated long-term operational histories.

This does not imply that future disputes are inevitable.

Rather, it highlights that early engagement provides an opportunity to examine potential issues while planning and design decisions remain comparatively flexible.

Different Pathways, Similar Lessons

The international cases reveal different governance pathways.

In the United States, many discussions evolved through operational experience, engineering investigations and, in some instances, litigation.

In Europe, planning systems increasingly emphasised preventive assessment through environmental review, administrative processes and public participation.

Malaysia is currently characterised by planning discussions, community engagement and policy dialogue before major operational disputes have emerged.

Despite these differences, the broader lesson is remarkably consistent.

Across jurisdictions, attention to potential acoustic impacts is gradually moving earlier within the project lifecycle.

Instead of viewing low-frequency noise solely as an operational issue, it is increasingly considered as one aspect of planning, environmental assessment and long-term infrastructure governance.

From Reactive Mitigation to Preventive Planning

Viewed collectively, the international experience suggests two contrasting approaches.

The first is reactive.

A facility becomes operational.

Community concerns emerge.

Technical investigations follow.

Engineering modifications are subsequently introduced.

The second is preventive.

Potential acoustic impacts are considered during planning.

Environmental studies inform decision-making.

Design options remain available.

Mitigation, where appropriate, can be incorporated before construction.

These approaches should not be viewed as mutually exclusive.

Operational monitoring and continuous improvement remain important throughout the life of a data centre.

However, international experience suggests that planning-stage consideration generally offers greater flexibility than retrospective modification after facilities are already operating.

A Shared Interest Across Stakeholders

An important observation emerging from the previous articles is that planning-stage consideration benefits more than one stakeholder.

For developers, early consideration may provide greater design flexibility and planning certainty.

For planning authorities, it supports more informed assessment of development proposals.

For surrounding communities, it provides an opportunity to understand potential impacts before construction begins.

For operators, it may reduce the need for more complex operational modifications later in the project’s lifecycle.

Although each stakeholder approaches the issue from a different perspective, they share a common interest in achieving infrastructure that performs reliably while maintaining public confidence.

This shared interest provides an important foundation for constructive dialogue.

Looking Ahead

The international experience suggests that the planning stage offers the greatest opportunity to consider low-frequency noise before it becomes a source of long-term community concern.

The next question therefore becomes increasingly practical:

How are developers currently considering low-frequency noise during the planning and design of new data centres, and what opportunities exist to strengthen understanding through dialogue?

The next section examines commonly observed international planning approaches and introduces the questions that will form the basis of the first MDCO Dialogue with Malaysian data centre developers.

MDCO Insight: International experience suggests that the planning stage provides the greatest opportunity to consider low-frequency noise before it develops into a long-term community issue.

Common International Planning Practices

The international experience reviewed throughout this MDCO Low-Frequency Noise (LFN) series demonstrates that there is no single global methodology for addressing low-frequency noise during the planning of data centres.

Planning systems differ between jurisdictions.

Environmental assessment requirements vary.

Regulatory thresholds are not uniform.

Individual projects also differ significantly in terms of size, cooling technology, surrounding land use and local environmental conditions.

Accordingly, this section does not seek to identify “best practice” or recommend a particular technical methodology.

Instead, it documents several planning approaches that have become increasingly observable across international infrastructure projects, including data centres and other large industrial developments where continuous mechanical equipment forms part of normal operation.

These approaches should be understood as examples of how acoustic considerations may be incorporated into project planning rather than as universal requirements applicable to every development.

Predictive Acoustic Assessment

One of the most common planning-stage approaches is the use of predictive acoustic assessment.

Unlike operational monitoring, which measures sound after equipment has been installed, predictive assessment estimates potential acoustic performance before construction begins.

Internationally, predictive assessments may support planning by examining how proposed infrastructure could interact with the surrounding environment under anticipated operating conditions.

The purpose is not to predict every future operational circumstance with absolute precision.

Rather, it is to provide planners, developers and regulators with technical information that supports informed decision-making while project design remains flexible.

The specific modelling methodologies adopted vary considerably between jurisdictions and projects.

MDCO does not endorse any particular modelling standard.

Instead, the consistent international observation is that acoustic assessment increasingly occurs during planning rather than after commissioning.

Considering Nearby Sensitive Receptors

Another commonly observed planning consideration is the relationship between a proposed facility and nearby noise-sensitive receptors.

Depending on local planning frameworks, these may include:

• residential neighbourhoods;
• schools;
• hospitals;
• places of worship;
• other locations where prolonged environmental noise may warrant particular consideration.

International planning systems generally recognise that identical facilities may produce different planning considerations depending on their surrounding context.

A data centre located within a well-established industrial area may present different acoustic planning considerations from one proposed immediately adjacent to existing residential communities.

Consequently, surrounding land use often becomes an important planning consideration long before detailed engineering design is completed.

Equipment Layout and Site Configuration

International experience also demonstrates that acoustic performance may be influenced by the physical arrangement of infrastructure across a site.

During planning and design, project teams frequently consider how different elements of the development relate to one another.

These may include:

• cooling systems;
• standby generators;
• electrical infrastructure;
• service yards;
• access roads;
• building orientation.

The objective extends beyond acoustic performance alone.

Equipment layout must also accommodate operational efficiency, maintenance access, safety, resilience and construction practicality.

Acoustic considerations therefore form one component within a broader multidisciplinary design process.

International approaches vary considerably.

Nevertheless, the timing of these decisions is significant because opportunities to modify overall site configuration are generally greater during planning than after construction.

Architectural Acoustic Design

Building design itself may also contribute to the overall acoustic performance of a development.

Architectural decisions can influence how sound propagates beyond the site, particularly where external mechanical infrastructure forms part of the overall facility.

Examples observed internationally include consideration of:

• building orientation;
• screening structures;
• enclosure of mechanical equipment;
• plant room configuration;
• integration of acoustic elements within the architectural design.

The specific engineering solutions adopted differ widely according to project requirements.

Rather than representing stand-alone acoustic measures, these design decisions are typically integrated with broader architectural, structural and mechanical objectives.

This reflects an important characteristic of modern infrastructure planning:

Acoustic performance is rarely addressed through a single design feature.

Instead, it results from the combined effect of numerous planning and engineering decisions.

Considering Cumulative Environmental Effects

As data centre clusters continue to expand in several regions, planning discussions have increasingly extended beyond individual facilities.

Internationally, some planning authorities have considered whether the combined environmental effects of multiple nearby developments warrant assessment alongside project-specific impacts.

These discussions may include cumulative considerations relating to:

• environmental noise;
• transport;
• electricity infrastructure;
• water resources;
• landscape;
• broader industrial development.

The approach adopted varies significantly between jurisdictions and depends on local planning legislation and assessment requirements.

The purpose of documenting this trend is not to suggest that cumulative acoustic assessment is universally required, but to recognise that planning discussions increasingly consider infrastructure within its wider regional context rather than as isolated projects.

Engagement with Specialist Consultants

Modern data centre projects typically involve multidisciplinary teams throughout planning and design.

Alongside architects and engineers, developers may engage specialist consultants to provide advice on particular technical disciplines relevant to the project.

Where acoustic assessment forms part of the planning process, specialist acoustic consultants may contribute by:

• preparing predictive assessments;
• evaluating alternative design options;
• supporting planning documentation;
• responding to technical enquiries during project assessment.

The extent of specialist involvement varies according to project complexity, regulatory requirements and site characteristics.

Internationally, however, the increasing use of multidisciplinary planning teams reflects the broader recognition that major infrastructure projects require expertise across multiple technical fields.

Incorporating Mitigation During Design

Perhaps the most consistent observation across international experience is that many potential mitigation measures are most readily incorporated while projects remain in the design stage.

At this point, developers typically retain greater flexibility to evaluate alternative approaches before construction begins.

Potential design considerations may include:

• equipment placement;
• building configuration;
• screening arrangements;
• spatial separation;
• architectural integration;
• other project-specific design solutions.

The feasibility and effectiveness of individual measures depend upon the characteristics of each development.

MDCO does not advocate any particular engineering solution.

Rather, the broader observation is that planning-stage consideration generally provides more opportunities for design optimisation than retrospective modification after facilities become operational.

Observations Rather Than Recommendations

It is important to distinguish between observed international practice and recommended practice.

The approaches described in this section should not be interpreted as a universal checklist or minimum standard for every data centre project.

Planning systems differ.

Regulatory requirements differ.

Project characteristics differ.

Consequently, developers and planning authorities adopt different approaches depending on local legislation, technical requirements and project circumstances.

The purpose of this article is therefore analytical rather than prescriptive.

MDCO is documenting how acoustic considerations have increasingly been incorporated into planning discussions internationally, not recommending that any particular methodology should be adopted in Malaysia.

Future policy development remains a matter for developers, regulators, planning authorities, technical professionals and other stakeholders.

Looking Ahead

The international experience demonstrates that planning provides an opportunity to consider low-frequency noise before facilities become operational.

How these considerations are applied in practice, however, depends upon the knowledge and experience of those directly involved in project development.

This naturally leads to the next stage of the discussion.

Rather than drawing conclusions on behalf of developers, MDCO considers it more valuable to invite developers themselves to share their perspectives on how low-frequency noise is currently considered during the planning and design of data centres in Malaysia.

These questions form the basis of the first MDCO Dialogue with the Malaysian data centre development community.

MDCO Insight: International experience suggests that planning-stage consideration of low-frequency noise is shaped by project context, multidisciplinary design and local regulatory frameworks rather than by a single universal methodology.

Questions for Future Dialogue

The international experience reviewed throughout this MDCO Low-Frequency Noise (LFN) series suggests that many of the factors influencing future acoustic performance are determined long before a data centre becomes operational.

Consequently, the first phase of the MDCO Dialogue series will focus specifically on the planning and design stage.

This focus is deliberate.

Questions relating to operational monitoring, complaint management, commissioning, regulatory enforcement and long-term community engagement are all important. However, they arise later in the project lifecycle and will be examined in future Dialogue articles.

The objective of this first dialogue is more focused:

To better understand how potential low-frequency noise is currently considered during the planning and design of data centres in Malaysia.

As an independent observatory, MDCO does not presume that there is a single correct approach.

Instead, the Dialogue seeks to better understand current practices, technical considerations and practical challenges from the perspective of those directly involved in project development.

Question 1

How Is Potential Low-Frequency Noise Currently Considered During the Planning and Design of New Data Centres?

International experience increasingly suggests that planning provides the greatest opportunity to influence future acoustic performance.

However, relatively little public information is available regarding how developers currently consider low-frequency noise during the planning and design of Malaysian data centres.

Future dialogue may therefore explore questions such as:

• Is low-frequency noise routinely considered during project planning?
• How is the issue distinguished from conventional environmental noise assessment?
• What project characteristics influence the level of acoustic assessment undertaken?

The objective is not to evaluate individual projects but to better understand current planning practices across the industry.

Question 2

At What Stage of Project Development Are Acoustic Specialists Typically Engaged?

Modern data centres involve multidisciplinary teams throughout planning and design.

Acoustic specialists may be engaged at different stages depending on project characteristics, regulatory requirements and client objectives.

Future dialogue may consider:

• whether acoustic input typically begins during site selection, concept design or detailed design;
• how acoustic advice is coordinated with other engineering disciplines;
• how planning requirements influence the timing of specialist engagement.

Understanding this process may help explain how acoustic considerations become integrated within broader project development.

Question 3

What Information Relating to Low-Frequency Noise Can Realistically Be Assessed Before Construction Begins?

Planning decisions are necessarily based upon information available before a facility is built.

This raises an important technical question.

Future dialogue may explore:

• what information can reasonably be predicted during planning;
• the role of predictive acoustic modelling;
• uncertainties associated with future operational conditions;
• how planning assumptions are developed.

Understanding both the capabilities and limitations of planning-stage assessment is important for informed discussion among all stakeholders.

Question 4

How Should Planning Submissions Communicate Potential Operational Noise Impacts to Planning Authorities and Nearby Communities?

Technical assessments form only one part of the planning process.

Equally important is how technical information is communicated.

Future dialogue may consider:

• what information is typically included within planning submissions;
• how technical findings may be explained in language accessible to non-specialists;
• how planning authorities and nearby communities may better understand potential operational impacts before construction begins.

Effective communication does not eliminate differing viewpoints.

However, it may provide a stronger evidence base for planning decisions.

Question 5

What Practical Challenges Do Developers Encounter When Assessing Low-Frequency Noise During Project Planning?

Every infrastructure project involves balancing multiple technical, environmental and commercial considerations.

Future dialogue may therefore explore practical questions including:

• availability of project information during early planning;
• evolving equipment specifications;
• changing client requirements;
• coordination across multiple design disciplines;
• differences between international standards and local regulatory frameworks.

Understanding these practical challenges is essential if future discussions are to reflect the realities of project development rather than theoretical expectations alone.

Scope of the Dialogue

The questions presented above are intended as the starting point for constructive engagement rather than definitive conclusions.

By focusing initially on the planning stage, MDCO hopes to better understand current industry perspectives while projects remain sufficiently flexible for meaningful discussion.

Subsequent Dialogue articles will progressively examine later stages of the project lifecycle, including commissioning, operational monitoring, complaint management, governance and long-term community engagement.

Why MDCO Is Examining This Issue

One of the defining principles of the Malaysia Data Centre Observatory is that major infrastructure issues should be examined from multiple stakeholder perspectives.

Throughout this Low-Frequency Noise series, MDCO has progressively expanded the discussion.

Engineering
↓
Communities
↓
Government and Planning
↓
Developers
↓
Consultants and Researchers

Each stakeholder contributes different knowledge, responsibilities and experience.

Communities experience the impacts of development.

Planning authorities administer regulatory processes.

Developers deliver complex infrastructure projects.

Consultants provide specialist technical advice.

Researchers contribute evidence that informs future policy and engineering practice.

No single perspective alone provides a complete understanding of low-frequency noise.

By bringing these perspectives together, MDCO seeks to support evidence-based dialogue that is technically informed, balanced and constructive.

This article therefore represents another step towards understanding how different stakeholders view the same issue from different professional and community contexts.

The Observatory Perspective

The articles within this MDCO series illustrate an evolving international picture.

The United States case studies demonstrated how operational low-frequency noise may develop into broader community conflict after facilities commence operation.

The European experience showed that planning systems increasingly seek to identify and assess potential impacts before development proceeds.

The Malaysian experience indicates that most current discussions remain focused on planning, consultation and public participation while many projects are still progressing through development.

This article adds a fourth perspective by examining how developers may consider low-frequency noise during project planning and design.

Taken together, these perspectives suggest that Malaysia occupies a distinctive position.

Unlike jurisdictions where operational disputes have already become well established, Malaysia continues to expand its data centre sector while many projects remain in the planning, design or construction stages.

This creates an opportunity.

Rather than waiting for operational experience to define future discussions, stakeholders may explore planning-stage considerations while project design remains comparatively flexible and before positions become polarised.

Whether future policy evolves through planning guidance, engineering practice, stakeholder engagement or regulatory development remains a matter for the relevant authorities and industry participants.

The role of MDCO is more modest.

It is to document, analyse and facilitate informed dialogue based upon evidence and international experience.

In that context, the planning stage represents not merely the beginning of a construction project, but also the beginning of a broader conversation about how digital infrastructure and surrounding communities can coexist over the long term.

MDCO Insight: International experience suggests that the planning stage offers the greatest opportunity to consider low-frequency noise before it develops into a long-term community issue.

Selected References

Industry Standards and Technical Guidance

• ASHRAE – Data Center Resources, including the ASHRAE Datacom Series, TC 9.9 Datacom Encyclopedia, standards and technical guidance on data centre planning, cooling systems, environmental control and infrastructure design. https://www.ashrae.org/technical-resources/bookstore/datacom-series
• Uptime Institute – Knowledge Hub containing publications and technical guidance on data centre planning, operational resilience, risk management and infrastructure lifecycle. https://uptimeinstitute.com/resources
• Data Centre Dynamics (DCD) – Industry news, technical articles and commentary covering data centre planning, sustainability, infrastructure development and operational practices. https://www.datacenterdynamics.com/
• The Green Grid – Industry consortium publishing resources on sustainable data centre design, energy efficiency and environmental performance. https://www.thegreengrid.org/
• CIBSE – Technical guidance and publications relating to building services engineering, acoustics, environmental design and sustainable building performance. https://www.cibse.org/

Environmental, Acoustics and Planning

• World Health Organization (WHO) – Environmental Noise Guidelines for the European Region. Copenhagen: WHO Regional Office for Europe, 2018. https://www.who.int/europe/publications/i/item/9789289053563
• International Organization for Standardization (ISO) – International standards relating to acoustics and environmental noise measurement, including the ISO 3740 and ISO 9613 series. https://www.iso.org/ics/17.140.01/x/
• International Association for Impact Assessment (IAIA) – Guidance and professional resources on environmental impact assessment, strategic environmental assessment and public participation in project planning. https://www.iaia.org/
• International Finance Corporation (IFC) – Performance Standards on Environmental and Social Sustainability, providing internationally recognised guidance on environmental and social risk management for major infrastructure projects. https://www.ifc.org/en/insights-reports/2012/ifc-performance-standards

Citation

Malaysia Data Centre Observatory (MDCO). A09.06 Low-Frequency Noise and Data Centre Development – Perspectives for Developers. MDCO Analyse Series.

MDCO Note

This article forms part of the Malaysia Data Centre Observatory (MDCO) Analyse Series, which aims to improve public understanding of data centre development through evidence-based, accessible and balanced analysis. It is intended for educational and informational purposes only and does not constitute legal, engineering, acoustic, environmental, medical or professional advice.

Low-frequency noise is a multidisciplinary subject spanning engineering, acoustics, environmental science, medicine, psychology, planning and public policy. MDCO does not advocate for or against any particular stakeholder, project, technology or regulatory position. Its role is to facilitate transparency, reduce information asymmetry and support informed discussion by explaining complex issues through publicly verifiable information and multiple complementary perspectives.