Acoustic Design: The Most Overlooked Risk in Data Centre Development

As data centres continue to expand across Ireland, the UK and Europe, acoustic design is becoming an increasingly important consideration for developers, operators and local communities alike. Historically, many data centres were built in isolated locations where noise had little impact on surrounding residents. Today, however, hyperscale facilities are increasingly being developed closer to residential areas, commercial districts and mixed-use developments. As a result, noise is no longer just a compliance issue; it is a community issue.

For developers, acoustic performance now plays a critical role in securing planning approval, maintaining positive relationships with local stakeholders and protecting long-term reputation. Yet despite its importance, acoustic design is often introduced too late in the development process, creating unnecessary risk, delays and additional cost.

To understand how developers can balance compliance, community expectations and project success, we sat down with Ventac’s Project Manager Eoin O’Sullivan, Design Engineer Dragutin Cividini and R&D Engineer Kailash Sumutram Viswanathan. Their collective experience highlights that when it comes to acoustic design, the earlier it is considered, the better the outcome.

Community Acceptance: Why Noise Matters Beyond Compliance

The growing proximity of data centres to populated areas has significantly increased scrutiny around noise emissions. Communities rightfully expect developments to operate responsibly and minimise their impact on local quality of life.

While compliance with planning conditions and environmental regulations remains essential, successful projects increasingly go beyond simply meeting noise limits. Developers must also consider how their facilities will be perceived by the people living and working nearby.

As Ventac Project Manager Eoin O’Sullivan explains, the shift has been driven by both location and expectation:

“Hyperscale data centres are being built closer to residential and commercial areas and mixed-use developments, so there is a much greater emphasis on noise reduction.”

Continuous noise from cooling equipment, chillers and connected operations can affect sleep, wellbeing and overall community satisfaction. “As public awareness grows, so too does the expectation that operators will take proactive steps to minimise disruption.” Eoin explains.

“The main thing is health and enjoyable lives,” he says. “People want to be able to sleep at night.”

Strong acoustic performance therefore supports more than regulatory compliance. It helps establish trust with local communities, strengthens environmental credentials and demonstrates a commitment to responsible development.

“You want a good relationship with your community. It supports your sustainability goals, boost your track record, protects your reputation and future developments.” Eoin explains.

The Cost of Leaving Acoustics Too Late

One of the most common challenges encountered on data centre projects is that acoustic requirements are not fully considered until key design decisions have already been made.

By this stage, available space may be limited, plant locations may be fixed and opportunities to integrate effective mitigation measures can be significantly reduced.

When acoustic design is introduced late, the consequences can include planning delays, redesigns, resubmissions, increased costs and even community complaints once a facility becomes operational.

According to Eoin, one of the biggest challenges is simply finding space for effective solutions once a design is already well advanced: “If we’re designed in early, space will be available. If we’re not designed in early, there can be very limited space on the roof for solutions.”

Early acoustic input allows potential issues to be identified before they become costly problems. It provides developers with greater design flexibility, ensures sufficient space is allocated for mitigation and reduces the risk of expensive modifications later in the project lifecycle. Simply put, addressing acoustics at the concept stage is more cost-effective and risk-averse than retrofitting solutions after construction has begun.

From Modelling to Compliance: Solving Acoustic Challenges Before Construction

Effective acoustic design begins with understanding both the noise source and the environment in which it operates. Modern design tools enable Ventac engineers to evaluate potential challenges long before equipment arrives on site. Our team assess equipment layouts, identify access constraints, evaluate maintenance requirements and coordinate acoustic solutions with other project disciplines.

Detailed design work allows potential clashes to be identified and resolved during the design phase, when changes can be made quickly and efficiently. As Design Engineer Dragutin Cividini explains:

“Finding a problem in CAD and fixing it usually takes a few minutes. On site, that same issue can take days or even weeks to resolve.”

This level of coordination also improves manufacturing accuracy, reduces waste and streamlines installation by ensuring every component has been considered before fabrication begins. The challenge, Dragutin explains, lies in balancing multiple project requirements simultaneously. Acoustic performance must be achieved while maintaining airflow, minimising pressure drops, ensuring safe maintenance access and accommodating site-specific constraints.

“Every project involves trade-offs. In some cases maintenance access or ease of installation takes priority. In others, achieving the required noise reduction is the primary objective.” says Dragutin. The priority is getting it right for the client.

Every project requires careful consideration of these competing priorities to achieve the most effective overall solution.

Predicting Community Impact Through 3D Acoustic Modelling

Advances in acoustic modelling technology are making it possible to predict noise performance with a high degree of accuracy before construction begins. Using detailed site information, sound power data and environmental considerations, Ventac engineers create three-dimensional acoustic models of proposed facilities or expansions. These models simulate how noise will propagate throughout the surrounding environment and allow designers to evaluate different mitigation options before any physical work takes place.

By integrating site information with real-world mapping data, engineers can assess potential impacts at nearby points, including residential properties and other sensitive locations.

Ventac R&D Engineer Kailash Sumutram Viswanathan uses acoustic modelling software to visualise how sound behaves across a site and its surroundings.

“We can implement the model onto Google Earth and see how the noise spreads. We can also see the noise levels at receptor locations and assess how effective different mitigation measures will be.” Kailash explains.

Proposed acoustic solutions can then be tested digitally before installation, providing greater confidence in their performance and reducing project risk for the client.

This digital-first approach enables developers to visualise the impact of design decisions, choose the right measures and make more informed choices earlier in the development process.

“It helps us get a clear view of what we’re working on and how we’re going to approach it before construction begins.” says Kailash.

Quiet by Design

The message from our team around project delivery, design, engineering and acoustic modelling is consistent – acoustic considerations should be introduced as early as possible. When asked for one piece of advice to data centre developers, all three experts independently arrived at the same conclusion; engage acoustic specialists early.

As Dragutin perfectly summarises: “An ounce of prevention is worth a pound of cure.”

Early engagement allows developers to make better decisions, avoid costly redesigns and create facilities that operate efficiently while respecting the needs of neighbouring communities. As data centres continue to grow in scale and move closer to the communities they serve, acoustic design is no longer simply a compliance exercise. It has become a critical component of project success.

The most successful developments are not those that address noise as an afterthought. They are the ones that embrace a Quiet by Design approach from day one. Choose Ventac to bring the development to life, beyond baseline compliance. Choose Ventac to safeguard operations while making the facility a sustainable option for the community.

Designing out the problem, not designing around it

When noise control is embedded from the outset, it stops being a constraint imposed later and becomes part of the facility’s performance strategy. Because once a data centre is built, sound is very hard to ignore and even harder to reverse.

At Ventac, we’ve seen the difference early acoustic integration makes, particularly in complex, high-density environments like data centres. We help operators, OEMs, architects and contractors safeguard operations to make more sustainable and compliant data centres.

Learn More

To learn more about our data centre capabilities, visit our dedicated web page, or talk to Eoin directly by emailing info@ventac.com