We deliver robust, proportionate noise impact assessments to support planning and development across the UK.
Our acoustic consultants combine technical expertise with a strong understanding of planning requirements to provide clear, commercially informed advice tailored to each project.
Using a combination of measured data, predictive calculations and advanced acoustic modelling tools, we assess the likely impact of proposed developments and identify practical mitigation strategies where required. Our approach is focused on enabling compliant, deliverable outcomes while minimising risk to programme and design.
What is a Noise Impact Assessment?
A Noise Impact Assessment (NIA) evaluates how a proposed development may affect, or be affected by, noise within its surrounding environment. It is commonly required as part of the planning application process, particularly where new noise sources are introduced or where noise-sensitive uses are proposed.
Assessments consider a range of potential sources, including:
- Building services plant (e.g. HVAC systems and extract equipment)
- Industrial or commercial operations
- Transport infrastructure and service yard activities
Why it is Important
Effective management of noise is essential to protect health, wellbeing and amenity. Early identification and assessment of noise risks:
- Reduces the likelihood of planning objections or delays
- Minimises the potential for future complaints or enforcement action
- Supports the delivery of high-quality, sustainable environments
Local Planning Authorities therefore typically require independent acoustic input, including environmental noise surveys and impact assessments, to demonstrate that proposals are acceptable.
Regulatory Framework
Assessments are undertaken in accordance with relevant guidance and standards, including:
- BS 4142:2014 – Methods for rating and assessing industrial and commercial sound
- BS 8233:2014 – Guidance on sound insulation and noise reduction for buildings
- Applicable local planning policies and environmental health requirements
Our Approach
Our methodology is tailored to the specific characteristics and complexity of each scheme, and typically includes:
Baseline Noise Survey
We undertake environmental noise monitoring to establish the existing acoustic environment, including background sound levels and prevailing noise sources. Surveys are conducted in accordance with relevant standards and may include both unattended (long-term) and attended (site-based) measurements.
Criteria Development
Based on survey findings and applicable standards, we define appropriate noise criteria aligned with planning conditions and policy requirements.
Impact Assessment
We calculate and predict noise emissions from proposed plant, equipment or activities, using manufacturer data and acoustic modelling where required. These are assessed at nearby noise-sensitive receptors.
Mitigation Strategy
Where necessary, we identify proportionate mitigation measures—such as plant selection, acoustic enclosures, screening or layout refinement—to achieve compliance.
Reporting and Support
We deliver clear, defensible reports for submission and provide ongoing support to the client and design team. This includes engagement with Local Authorities and Environmental Health Officers to address queries and facilitate the efficient progression of applications.
