Noise Impact Assessments for Planning Applications
Noise Impact Assessments, sometimes referred to as NIAs, noise assessments or noise surveys, are commonly required to support planning applications where a proposed development may generate noise, or may itself be affected by existing non-traffic noise sources.
We prepare robust, proportionate Noise Impact Assessments for submission to Local Planning Authorities across the UK, written to address planning policy and relevant British Standards. Our assessments are technically defensible and accurate while remaining practical for real sites, operations and developments.
When is a Noise Impact Assessment required?
A Noise Impact Assessment is commonly required where a planning application involves:
• New residential development near existing noise sources,
• Commercial or industrial uses that may affect neighbouring receptors including extensions to existing premises.
• Mixed-use developments
• Mineral extraction / quarry sites
• Proposed Sporting facilities such as 3G pitches, Padel, also motorsport and entertainment venues
Noise Impact Assessments are also commonly required to support BREEAM POL 05 credits, where compliance with BS 4142 and related guidance is needed to demonstrate acceptable noise impact from fixed plant or industrial sources. We can provide surveys and consultancy in support of BREEAM credits for all applicable development types.
We undertake baseline measurements, assess likely impact, and provide clear, proportionate mitigation recommendations where necessary. Noise predictions are undertaken using the correct latest standard, ISO 9613-2 : 2024
Understanding your site and operation
Where mitigation is required, it is important that it is practical and does not unnecessarily restrict the operation of a site or business. We take time to understand the site layout, operating pattern and practical constraints so that any recommendations are workable.
We have assessed a wide variety of operations and environments over the years, which helps us identify the critical issues quickly and focus effort where it matters. That experience covers a broad range of industries and activities, including manufacturing, printing, food processing, waste and recycling operations, mineral extraction, agricultural processing and many others.
Where Noise Impact Assessments are commonly required
Noise Impact Assessments for industrial and commercial developments (BS 4142)
For industrial and commercial developments, the most common standard used is BS 4142. To give its full title, BS4142:2014+A1:2019, ‘Methods for rating and assessing industrial and commercial sound’ has existed in various forms for several decades.
The current version is a detailed and valuable document which provides an excellent basis for assessing noise impact, but it requires experience and technical judgement to apply correctly and to interpret with pragmatism.
Where BS 4142 is applicable, we assess source sound levels, acoustic character, operating pattern and context, and provide clear conclusions together with proportionate recommendations where required. Assessments are undertaken in accordance with the government’s ‘Method Implementation Document’ where relevant
For quarry sites, different guidance on mineral extraction noise is contained within national planning policy and associated guidance for Local Authority submissions. For Environment Agency permit applications, BS 4142 is commonly expected as the basis of assessment.
Noise Impact Assessments for residential development
Noise Impact Assessments for residential development may be required where there are existing commercial, industrial or other noise-generating premises close to a proposed development site. Depending on the circumstances, acoustic surveys for residential development may also need to consider transportation noise from road, rail or air traffic, internal noise criteria and façade design.
Further details on residential acoustic surveys can be found on our Acoustic Survey and Design page.
Noise Impact Assessments for Environment Agency Permit applications
Where a site is subject to an Environment Agency permit application or variation, a noise impact assessment may be required to meet the Agency’s specific expectations for reporting and assessment detail.
We have experience preparing assessments for a range of permitted activities, including mineral extraction and associated industrial processes, waste recycling and inert waste processing, soil washing and land restoration.
Noise Impact Assessments for complaints, enforcement and Noise Abatement Notices
If complaints have been received about noise from a site, or a Local Authority has issued a Noise Abatement Notice, the first step is to establish what is actually occurring in practice, quantify the extent of any problem, and identify proportionate measures that resolve the issue without unnecessary disruption to the business or venue.
Where appropriate, we can assist in clarifying the position, reviewing existing operations and controls, and identifying practicable solutions to help move matters forward.
If you are facing noise complaints or enforcement action, please contact us to discuss the best way forward.
What our Noise Impact Assessment service includes
Our noise impact assessment service typically includes:
• Review of the proposed development and planning context
• Baseline environmental noise measurements
• Assessment using appropriate standards and guidance
• Prediction and noise modelling
• Clear conclusions and proportionate mitigation recommendations
• A report suitable for submission to the Local Planning Authority or Environment Agency
David Garritt BEng MIOA
Director and Acoustic Consultant
Speak to an Acoustic Consultant
If you would like to talk to us about any aspect of acoustics and how we can help, please do not hesitate to contact us:
e-mail: contact@sdgarritt.co.uk
Phone: Doncaster main office, 01302 854 303
David Garritt’s mobile, 07894 073 973
Elizabeth Garritt BSc AMIOA
Acoustic Consultant