That is the challenge with acoustics in the built environment. When it is done well, it often goes unnoticed. When it is done badly, it can affect sleep, privacy, concentration, wellbeing, neighbour relationships, and ultimately whether a place feels fit for purpose at all.

Noise Action Week is therefore a timely reminder that acoustics is not a finishing touch or a compliance add-on. It is a fundamental part of good design.

What is Noise Action Week and who is it for?

Noise Action Week is a useful moment to step back and look at the wider impact of sound on everyday life. While it is often seen as a public awareness campaign, its relevance goes much further.

For those working in the built environment, it highlights the role that design, planning and construction play in shaping how places are experienced over time. The acoustic performance of a space is not defined by a single report or testing stage. It is shaped across its whole life.

Noise is a planning issue, not just a nuisance

Too often, acoustics enters the conversation late, once a planning issue has been raised, a complaint has been made, or a design has already become too fixed to change easily.

By that stage, the options are narrower, the costs are higher, and the compromises are greater.

At planning stage, acoustics helps answer some of the most important questions about whether a site can work, and how it can work well. How will future residents experience transport noise? Will external plant affect neighbours? Can commercial activity, servicing or public realm uses sit comfortably alongside homes, schools, healthcare or hospitality uses?

These are not box-ticking questions. They go to the heart of placemaking, health and long-term viability.

How building design either solves or creates noise problems

At design stage, acoustics shapes the quality of internal environments in ways that people experience every day, even if they do not have the technical language to describe it.

The layout of rooms, the orientation of façades, glazing strategy, ventilation approach, façade build-up, floor construction, internal partitions, reverberation control, and the management of building services noise all play a role in how a space performs.

A development that looks elegant on paper still has to work when windows are opened, when plant starts up, when classrooms are occupied, when hotel guests are trying to sleep, or when residents simply want peace and privacy in their own homes.

This whole-life view matters even more as buildings become more complex. The relationship between acoustics, ventilation, overheating, façade design, energy strategy and fire safety is now impossible to ignore. A decision made for one performance target can create unintended consequences for another.

Good acoustic design is not about working in isolation. It is about helping projects strike the right balance between competing demands, so that one solution does not quietly create another problem.

Getting acoustic design right from the start

The better approach is to consider acoustics from the very beginning and to continue doing so throughout the whole life of a development.

At planning and design stage, early input helps shape key decisions before they become fixed. This is particularly important across a range of uses, from homes and schools to healthcare, hospitality and mixed-use developments, where acoustic performance directly affects how spaces are experienced day to day.

Later in the project, acoustic input supports coordination between disciplines, helping to balance competing requirements.

This continues through construction, where temporary noise and vibration should be anticipated, managed and reduced through careful planning and communication.

And it continues into occupation, which is the longest phase of all. Buildings change. Plant is replaced. Tenants come and go. Spaces are reconfigured and uses intensify. A scheme that performs well at completion still needs to remain robust in use.

This is where acoustic consultancy adds value. It is not just about predicting decibel levels or satisfying a condition. It is about helping create places that are healthier, more comfortable, more resilient and more successful over time. In other words, places that sound as good as they look.

Early intervention with CDC

For Noise Action Week 2026, the message is clear. Acoustics should not be an afterthought.

Better outcomes are achieved when it is embedded early, considered throughout, and treated as a core part of the design process from first concept through to long-term occupation.

At Cahill Design Consultants, we support developers, architects and project teams with acoustic design advice and planning support to assess and manage the environmental impacts of noise. During Noise Action Week, we support greater awareness of the role acoustics plays in creating buildings and places that work well for the people who use them, not just at completion, but throughout their lifetime.

If you’d like support with an acoustic design project, get in touch with the team via +44 (0) 1206 809 598 or send an online enquiry form.

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Supporting Practical AI Adoption

CDC took part in Cohort 3 of the programme through BridgeAI as part of the company’s wider AI First initiative, which focuses on encouraging practical, responsible and considered use of AI across the business.

Following earlier engagement with BridgeAI around AI adoption and innovation within the construction industry, CDC was selected to join the third cohort of the Practitioners Hub. Mark and Sarah participated throughout the programme as Experts in Residence, contributing to workshops, collaborative discussions and shared learning sessions alongside organisations from a range of sectors.

The programme was designed to support organisations in exploring practical approaches to AI adoption through structured frameworks, open discussion and collaborative working. Throughout the cohort, participants shared experiences, challenges and opportunities surrounding the implementation of AI within their own organisations.

From Internal Efficiencies to Wider Innovation

For CDC, the programme formed part of a wider innovation journey already underway within the business. What began as internal discussions around how AI could support day-to-day efficiencies gradually developed into wider exploration of how emerging technologies could enhance both internal processes and client experience.

Alongside ongoing development work surrounding an AI-powered document analysis platform, the programme provided an opportunity for CDC to further develop its thinking around practical AI implementation, responsible use and internal engagement with emerging technologies.

Cohort Showcase and Published Case Studies

The programme concluded with the Cohort 3 showcase event in London, where participating organisations presented reflections on their journeys, the work they had undertaken and the lessons they had taken from the experience.

As part of the showcase, Mark presented CDC’s wider AI journey and the company’s evolving approach to innovation and AI adoption within the construction industry.

Following the conclusion of the programme, the official Cohort 3 AI adoption case studies have now been published by The Turing Way. CDC’s case study explores the company’s AI journey so far, including the development of its AI First initiative and wider AI development work.

You can read the CDC case study here:
CDC AI Adoption Case Study

You can also explore the wider Cohort 3 case studies here:
The Turing Way Practitioners Hub Impact Page

Earlier this year, CDC’s wider AI and innovation work was also recognised with an Innovation Award at the CEEC Awards.

Reflecting on the experience, Sarah said:

“At the beginning, the amount we didn’t know about AI implementation seemed quite overwhelming, but going through the different sessions with the Practitioners Hub helped us ask the right questions and build our own solution on solid foundations.

“Hearing from experts and organisations in other sectors with very different levels of AI experience was invaluable. It gave us confidence in both the platform we’re developing and how we approach AI more generally.”

CDC would like to thank everyone involved in delivering and supporting the programme, as well as the organisations that contributed to such an open and collaborative environment throughout the cohort.

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For design teams, this presents a difficult challenge. The sheer volume of information can be daunting, and make it harder to make decisions with confidence, particularly on complex or high value schemes. 

It’s easy to get lost in the details. Teams often find themselves navigating clauses, definitions or overlapping guidance just to stay compliant. While this work is important, it can start to dominate the process, and leave other factors neglected.

When regulatory noise starts to overcrowd judgment, it’s important to bring yourself back to the original question – what is the building trying to achieve in terms of fire safety?

Where projects start to struggle

With so much guidance available, it’s natural to focus on compliance at a detailed level. 

This often leads to long discussions around wording, definitions and interpretation. While they have their place, they can start to pull the attention away from how the building will actually perform in a fire. 

Design teams can lose momentum as decisions become harder to make or justify. Coordination between disciplines becomes more difficult, and sometimes causes conflicts when different interpretations of guidance oppose. Time is spent resolving data rather than progressing overall strategy. 

In some cases, this leads to overly cautious or overly complex solutions that don’t necessarily improve safety, but have an impact on buildability, fire safety management complexity, cost, and often an objectively poorer level of building fire safety performance.

At its worst, the fire strategy itself can become fragmented, with individual elements considered in isolation rather than as part of a coherent whole.

The real objective of fire safety

At its core, fire safety is about outcomes rather than interpretation of generic guidance. A well designed building should be able to answer a few straightforward questions, such as:

Can people evacuate safely?

This comes down to more than travel distances of exit widths. There’s added nuance behind how people behave, how clearly escape routes are understood, and whether the design supports a calm and efficient evacuation for a wide range of users, including those with limited mobility.

Do fire protection systems support an evacuation?

Passive and active measures need to work together. Compartmentation, structure and fire stopping should limit the spread of fire and smoke, while fire detection, alarm and suppression systems give occupants time to respond. Focusing on one without the other can weaken and fragment the overall strategy. 

Can the fire and rescue service operate effectively?

Access, water supplies, firefighting shafts and internal layouts all influence operational firefighting tactics by the fire and rescue service. These are practical considerations that affect real world outcomes in a fire emergency.

Does the design reflect the level of risk?

Risk is influenced by many factors, including use, occupancy, layout and management. Unfortunately, building height is increasingly considered a direct proxy for risk. A more rounded view of the risk level is required to enable the fire strategy to respond to how the building will actually be used.

These principles sit behind the guidance set out in documents such as Approved Document B and standards like BS9991, which support compliance with the Building Regulations 2010. 

Guidance helps structure decisions, but it cannot fully define how every building should perform. That still relies on robust fire engineering judgment and a clear understanding of the overall objective.

Using a holistic approach

Fire safety does not sit within one document or discipline. It’s shaped by a series of decisions made across the design, construction, and use of a building. These decisions only work when they are considered together.

The three core factors to consider are: 

• Passive measurements such as compartmentation and structure 
• Active systems such as alarms and suppression
• Management and maintenance over time. 

Each plays a role, but none of them work in isolation. Gaps in coordination between these elements are often where issues arise. 

These three factors are brought together under the functional requirements of the Building Regulations 2010, which are intended to be met as a complete system rather than a checklist. 

No single guidance document can fully reflect the range of building types, layouts and uses seen in practice. This is why a joined up approach matters. Stepping back to consider how the building performs as a whole often leads to clearer, more robust design solutions. 

Instead of asking how a particular clause in guidance may apply, the more useful question is whether the design achieves the right outcome, as reflected in the functional requirements of the Building Regulations.

A more practical way forward

For most projects, clarity comes from stepping back early and setting a clear, coordinated strategy before the design becomes too fixed. 

A few key steps to consider include: 

Defining the fire strategy objectives at the start of the design process.

This gives the team a shared direction from day one. It helps guide key decisions around layout, access and building use, rather than trying to justify them later.

Looking at the building as a whole, rather than as isolated elements. 

Fire safety works best when it’s considered alongside how the building is planned, used and constructed. This avoids situations where compliant elements don’t quite align when brought together. 

Using guidance to support decisions, not drive them.

This point is key. Guidance remains essential, but it works best when applied with a clear understanding of the intended performance outcome. This allows teams to use it with confidence, rather than feeling constrained by it. 

Coordinating fire strategy alongside acoustics, building physics, and facade design.

Many of the same building elements influence multiple platform requirements. Considering these togethers helps reduce clashes and leads to more efficient, buildable solutions. 

When fire strategy is considered alongside the wider design, it becomes part of the decision making process rather than a layer added later, or reliance on a report to justify poor design decisions.

This reduces the risk of late changes, helps avoid conflicting requirements, and gives the project team a clearer path through an increasingly complex regulatory landscape.

How integrated design helps

An integrated consultancy approach can streamline the design process, save time and costs, and enhance project outcomes. 

Considering other disciplines such as acoustics, facade design and building performance from the outset, decisions tend to be more balanced and easier to coordinate. The design develops with a clearer understanding of how different requirements interact, rather than siloed development that leads to later conflicts. 

This approach helps maintain focus on the overall objectives of all disciplines. Instead of navigating guidance in isolation, the project team can work with a clearer strategy that reflects how the building is expected to perform as a whole. 

For clients and design teams, this creates a more straightforward route through what can otherwise feel like a complex and fragmented process. 

A clearer way through fire safety complexity

Fire safety guidance will continue to evolve, and the volume of information is unlikely to reduce any time soon. 

With the right approach, it can be managed in a way that brings clarity rather than confusion. Focusing on outcomes helps keep decisions grounded in how a building will actually perform. Asking the right questions early gives design teams a clearer direction. And taking a coordinated approach reduces the risk of conflict between disciplines as the project develops. 

With in-house specialist teams working across acoustics, fire engineering, facade, building physics, and building surveying, Cahill Design Consultants delivers an integrated approach to consultancy. We support earlier decisions, reduce coordination risk, and help to keep projects moving forward with confidence. If you are working on a scheme and want to take a more integrated approach to fire safety, acoustics or facade design, the team at CDC are always happy to have a conversation. Give us a call on +44 (0) 1206 809598 or leave us a message.

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Our Charity of the Year is chosen through team nominations and a company-wide vote. Dementia UK is a cause that resonates across the business, particularly where dementia has impacted family members, making the work they do all the more meaningful to us. Over the year, we’ll be fundraising through a mix of activities, from our usual bake-offs and sweepstakes to some bigger challenges still to come. Our target is £2,000, and we’re aiming to go beyond that, with donations open via our JustGiving page.

About Dementia UK 

Dementia UK is the dementia specialist nurse charity. The charity’s Admiral Nurses provide life-changing care for families affected by all forms of dementia.    

Today, dementia is the leading cause of death in the UK. As of 2025, more than one million people in the UK were living with this condition.   

There’s no cure for dementia. But there is care. Dementia UK’s Admiral Nurses are continually supported and developed by the charity to provide life-changing support for families affected by all forms of dementia. Their Nurses work in hospitals, GP practices and local community services to provide clinical, emotional and practical support that enables people to live more positively with dementia.    

 If you are affected by dementia and need information or advice, you can call Dementia UK’s Helpline on 0800 888 6678 for support from dementia specialist Admiral Nurses. The Helpline is open from 9am to 9pm Monday to Friday and 9am to 5pm at weekends (excluding 25^th December). 

Meet Gareth 

When his partner Sarah was diagnosed with young onset frontotemporal dementia at the age of 48, Gareth struggled to know where to turn. Our Admiral Nurses supported Gareth as he became a Sarah’s carer, reassuring him as Sarah’s dementia progressed that he was providing her with the best care possible. Sarah died in December 2024. 

Gareth shares his experience and reflects on the challenges of being a carer for someone with dementia here. 

Useful links 

• About dementia: Learn more about what dementia is, the symptoms, risk factors, and different stages. 

• Living with dementia: Expert tips for managing complex everyday challenges. 

• How we can support you: Get support from our dementia specialist Admiral Nurses. 

• Resources: Download or order information leaflets on topics including health issues, finance and benefits, supporting children and managing employment. 

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We were delighted to come away with the Innovation Award, recognising the work we have been doing over the past year to embed innovation into the business and explore new, practical ways of improving how we work and how we support our clients.

Our focus has been on building understanding and confidence across the team. Through the introduction of our AI First initiative, staff across the business were encouraged to explore where artificial intelligence could help reduce repetition, improve efficiency and enhance the client experience. This approach led to the identification of a number of AI use cases and the early development of a document analysis approach designed to help clients navigate complex technical reports more easily.

Winning the Innovation Award is a real credit to everyone involved and reflects the commitment, collaboration and curiosity shown across the business while continuing to meet the demands of day‑to‑day project delivery.

It was also great to see the Queen Street project, delivered by Horizon Construction Group and supported by the wider consultant team, pick up both Building Project of the Year and Conservation and Regeneration awards. We were proud to have contributed to a project that received such strong recognition.

Thank you to Constructing Excellence Essex for a very enjoyable event, and congratulations to everyone who was shortlisted, commended or took home an award on the day.

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As our Charity of the Year (April 2025 – April 2026), St Helena Hospice has been at the heart of these efforts. Through a mix of activities including bake sales, the St Helena Midnight Walk and the Colchester Half Marathon, we raised an incredible £3,199.67.

Alongside fundraising, members of the team also gave their time to support St Helena directly, contributing a combined 126 hours of volunteering. This provided a valuable opportunity to step away from day-to-day projects and support the charity’s work first-hand.

The experience reinforced just how important St Helena’s work is within the local community. A sincere thank you to their team for their support and for the work they do every day.

Our efforts extended beyond fundraising for our Charity of the Year. Between April 2025 and April 2026, we also donated over 190kg of food to Colchester Foodbank, helping to support individuals and families in need within the local area.

These achievements reflect a genuine team effort. Thank you to everyone who took part, donated, volunteered, or helped organise events throughout the year.

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The final stage, Gateway 3, is where the project team must demonstrate that the building has been designed and constructed in full compliance with building regulations. In simple terms, it confirms that the building is safe to occupy before residents can move in.

For developers and project teams, this stage is critical to completion. It requires clear evidence, coordinated documentation and a complete record of how safety has been managed throughout the build.

For consultants like CDC, Gateway 3 is where early technical coordination proves its value. This article explains what the stage involves in practice and how CDC can help project teams prepare for well-coordinated submission.

What developers must provide at Gateway 3

To secure approval at Gateway 3, developers must submit a completion certificate application to the Building Safety Regulator. The application needs to demonstrate clearly that the completed building complies with all relevant parts of the building regulations. If satisfied, the Building Safety Regulator will issue a Completion Certificate, allowing the building to be legally occupied.

The regulator will assess whether the building as constructed aligns with the approved design intent and meets required safety standards. 

To do this, the project team must provide a coordinated set of technical information and supporting evidence. 

This typically includes: 

• Accurate as built information, showing how the buildings have been constructed in practice.
• Technical evidence relating to fire and structural safety, including calculations, specifications, and supporting documentation that demonstrates compliance. 
• A complete “golden thread” record, providing a clear and accessible digital history of the building’s design decisions, safety strategy, and construction details. 
• Confirmation that the “golden thread” information has been handed over to the dutyholders responsible for managing the building once it is occupied. 
• Clear change management records, demonstrating how any design, product or specification changes made after Gateway Two were reviewed, approved and properly documented. 

For many teams, the challenge is not producing these documents individually. The difficulty lies in ensuring that they’re consistent, coordinated, and fully aligned with what has been installed on site. 

When information is incomplete, inconsistent or prepared too late, the Gateway 3 review process can slow significantly – and without approval, a higher-risk building cannot legally be occupied.

Common issues that delay Gateway 3 approval

Because Gateway 3 is still relatively new, many project teams are only now experiencing the full requirements of the process. Early applications have shown that delays are rarely caused by a single issue. More often, they arise when technical information has not been coordinated or maintained consistently throughout construction. 

Several themes tend to appear in projects where Gateway 3 approval takes longer than expected. 

Incomplete or fragmented safety documentation 

Applications can stall when key evidence relating to fire or structural safety is missing, unclear or inconsistent. In some cases, the information exists but sits across multiple consultants, contractors or subcontractors without being brought together into a clear and coherent submission. 

Weak change management during construction 

Design development and product substitutions are common during construction. However, where these changes are not properly recorded or assessed against the original strategy, it can become difficult to demonstrate that the completed building still complies with the approved design intent. 

Unclear responsibility between dutyholders

Gateway 3 applications can be delayed where it is not clear who is responsible for compiling, reviewing, and signing off specific elements of the submission. Clear allocation of responsibilities between the client, principal contractor and principal designer is essential.

Systems that have not been reviewed together

Safety critical systems may perform correctly when tested individually, but issues can arise when they interact within the completed building. Ensuring that fire safety measures, structural systems and building service operate effectively together is an important part of the final verification process. 

In many cases, these challenges are not the result of poor design or construction. They arise because information has been gathered late or managed across multiple parties without clear coordination.

How early oversight can make a difference

When disciplines work in isolation, documentation can become fragmented. Design decisions may be made at different stages by different parties, and the link between those decisions and the final as-built record can become unclear. By the time the Gateway 3 submission is being prepared, project teams may then need to retrace steps to confirm how systems were designed, installed and approved. 

Early technical coordination helps avoid this situation. When key disciplines collaborate from the outset, it becomes much easier to maintain a consistent record of design intent, safety strategy and construction outcomes throughout the project. 

For CDC, this coordinated approach is central to how we support project teams. By bringing together expertise in fire safety engineering, acoustic design, facade engineering and building surveying, we can review how building systems operate effectively together as part of the completed building. 

In practice, this means helping teams: 

• Review design information early to identify potential compliance risks
• Maintain clear and consistent technical documentation throughout construction 
• Assess design or product changes against the approved safety strategy 
• Ensure the completed building aligns with the approved design and regulatory requirements. 

By maintaining clear records and coordinated oversight throughout the build, the Gateway Three submission becomes far more straightforward. Instead of assembling evidence at the end of the project, the information required for approval already exists as part of the project record.

Preparing for Gateway 3 with confidence

Gateway 3 represents a legal threshold, not a formality, requiring demonstrable evidence that safety has been properly managed throughout design and construction.

CDC works alongside developers, architects and contractors to help manage this process. Through coordinated technical advice and clear documentation, we support project teams in navigating Gateway 3 with confidence. We can support responding to Building Safety Regulator queries, coordinating technical responses, and helping avoid late-stage redesign or rework that can impact programme and cost. 

Our integrated team helps create a clearer submission process and greater certainty at the point of occupation.

Get in touch with the team by calling +441206 809 598 or sending an enquiry online today.

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These disciplines require specialist input, and they rarely sit in isolation. A change to a facade detail can affect fire performance and acoustic separation. For example, increasing glazing to improve daylight may introduce overheating risk. In practice, technical decisions overlap and influence one another throughout the design process. 

At Cahill Design Consultants, we provide coordinated engineering consultancy across acoustic design, fire and facade engineering, building physics and building surveying. Our role is to help you move from concept to completion with clear, pragmatic guidance that fits into real world applications. 

In this article, we outline how each discipline contributes to the success of a project and why joined up advice often makes the difference.

Fire engineering

Fire strategy now carries greater weight at every stage of a project. From early feasibility through to Gateway submissions and final sign off, the approach must be clearly defined, well documented and coordinated with the wider design. 

At the planning stage, we prepare Gateway 1 fire statements and provide early advice to help shape layouts and site strategy. As the design develops through RIBA Stages 3 and 4, we produce detailed fire strategy reports and drawings, and support Gateway 2 and 3 submissions where robust compliance evidence is required.

On more complex schemes, CFD modelling allows us to test design assumptions and provide technical justification where prescriptive guidance alone isn’t sufficient. During construction and at completion, we carry out inspections and wider site reviews to confirm that what has been built reflects the agreed strategy.

For existing buildings, we also undertake fire compartmentation surveys and fire door inspections where required. Our advice is grounded in practical delivery, ensuring that compliance solutions remain realistic to construct.

Acoustic design

Acoustic engineering plays an important role in shaping successful buildings and developments, particularly within residential and mixed‑use schemes. Our building and environmental acoustics team provides engineering‑led advice across the full project lifecycle, from early masterplanning through detailed design, construction, and handover.

At the outset of a project, we support site feasibility and masterplanning by assessing environmental noise constraints and advising on layout, massing, and land‑use compatibility. Early acoustic input is often critical in responding to local authority policy and Building Regulations, helping to establish viable and compliant development strategies from the start.

We prepare environmental noise assessments and acoustic design statements to support planning applications, offering clear, proportionate guidance on façade performance, glazing, ventilation, and external amenity areas. This advice is developed in close coordination with architectural, façade, and fire engineering teams to ensure practical and cost‑effective solutions.

As projects progress, we provide detailed building acoustic design, site support, and pre‑completion sound insulation testing. We also investigate acoustic performance issues in completed buildings, delivering pragmatic recommendations where standards are not being met. By integrating acoustics with the wider design, we help deliver robust outcomes and smooth project approvals.

Facade engineering 

The facade is where many technical requirements converge. Fire performance, thermal efficiency and weather resistance are all influenced by its design and installation. Decisions around materials affect not only compliance, but also durability and long term maintenance. 

Our involvement can begin at the concept stage, reviewing architects facade design intent and advising on materiality, design life, performance and sustainability before specifications are fixed. We support design teams in developing compliant facade strategies and assessing proposals against current Building Regulations and project requirements. 

Through RIBA Stages 4 to 6, we continue to support the technical design, coordination and construction process. We review detailed drawings and specifications, respond to contractor queries and provide clear guidance where design adjustments are required to maintain compliance and performance.

During construction, we attend site to review installation against approved drawings and specifications, identifying gaps or inconsistencies early so they can be addressed without wider disruption. 

For existing buildings and remediation schemes, we carry out facade inspections, EWS 1 assessments and FRAEW assessments where external wall performance must be formally reviewed. 

Clear communication is central to this process. We help teams understand how facade design decisions interact with fire, acoustics and energy performance, providing advice that reflects the realities of construction on site.

Building physics

Building physics considerations including daylight provision, solar gains, overheating risk, energy demand, and fabric performance are fundamental to delivering comfortable, efficient, and compliant buildings. Within the current regulatory framework, these issues are central to meeting Building Regulations requirements, particularly Part L, and satisfying planning policy objectives around energy use and sustainability.

We undertake daylight and sunlight assessments to support planning submissions, alongside overheating risk analysis in accordance with Approved Document O, using CIBSE TM52 for non‑domestic spaces and TM59 for residential schemes. Energy and carbon performance is assessed through SAP modelling, informing early decisions on glazing ratios, U‑values, thermal bridging, airtightness, and building services efficiencies. This enables design teams to test compliance strategies and understand performance trade‑offs before details are fixed. We also provide Energy Performance Certificates and wider Part L compliance support where required.

Our advice is interpretative rather than purely numerical, ensuring results are understood in the context of the overall design. By embedding building physics input early, projects can achieve compliance through coordinated design rather than reactive mitigation later.

Building surveying

Refurbishment, change of use and extension schemes rely on a clear understanding of the existing building. Assumptions at this stage can lead to delays, cost variation and compliance issues later down the line. This is often where building surveying input becomes essential.

We carry out measured surveys, condition surveys and defect investigations to establish a reliable baseline. This allows design teams to understand structural constraints, material condition and potential compliance challenges before proposals are finalised. 

Where works affect fire safety, facade performance or thermal upgrades, surveying input helps identify risks that may not be obvious from drawings alone. We also support clients with dilapidation advice and ongoing building condition assessments where required. 

By clarifying what is already there, we help reduce uncertainty and support realistic design decisions from the outset.

Where these disciplines overlap

In practice, building projects rarely sit neatly within a single discipline. Decisions around façade design can have direct implications for both fire performance and acoustic outcomes, while measures introduced to improve thermal efficiency may affect internal comfort, condensation risk, or ventilation strategy. 

Similarly, alterations to existing buildings often require a coordinated response that spans surveying, regulatory compliance, and performance assessment.

When technical advice is delivered in isolation, these interdependencies can be overlooked, leading to conflicting recommendations, redesign, or unnecessary delay.

At Cahill Design Consultants, our teams work collaboratively rather than in silos. We understand how changes in one area influence another and coordinate our advice accordingly. This integrated approach gives design teams confidence that safety, performance, and buildability are being considered together, supporting clearer decisions and more efficient project delivery.

Start the conversation early

Bringing the right engineering advice into a project at the right time can reduce risk, avoid redesign and support smooth approval. Whether you need input on a single discipline or coordinated support across multiple areas, early discussion helps define a clear and proportionate scope. 
If you’d like to discuss your project, our team is happy to provide practical guidance on the level of support required. You can explore our full range of services or get in touch by calling +44 (0) 1206 809 598 or using our online enquiry form.

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