Posted: 14th April 2021
A noise assessment is a key element for developers of residential projects such as houses, rental apartments, and hotels. BS 8233 provides key criteria which must be considered if planning consent is to be awarded by the local authority.
BS 8233:2014 Guidance on sound insulation and noise reduction for buildings outlines acceptable internal and external noise levels. Internal criteria are provided for bedrooms, living rooms, dining rooms. Levels are specified during the daytime (between 0700 and 2300) and night-time (between 2300 and 0700). Guidance sound levels are also provided for external amenity spaces (e.g. gardens and balconies) during the daytime.
The standard also offers guidance on how sound insulation or noise reduction strategies may be used to reduce the impact of noise in new properties.
If a planned residential development, school, or hospital is to be sited close to a transport noise source, the Local Authority will request that a noise survey report is submitted with the planning application. This is to assess the likely impact of noise on residents or occupants of the new buildings.
The noise impact assessment report will use appropriate Standards and guidance documents to ensure the development complies with the National Planning Policy Framework (NPPF) and Noise Policy Statement for England (NPSE). BS 8233 is commonly accepted as providing acceptable guidance criteria for this assessment. Appropriate mitigating measures can be put in place if sound levels will exceed the BS 8233 criteria.
At sites where noise is likely to be a factor in determining whether planning consent will be granted, the Local Authority may request the survey at the pre-application stage of the process. Alternatively, planning consent permission may be granted with a condition requiring the report to be submitted at a later stage.
A BS 8233 survey establishes a baseline measurement of the noise in the local environment from key points on the site. This allows a prediction of the future impact of noise to be gauged, with reference to BS 8233:2014.
At ACA Acoustics, we are specialists in providing noise impact assessments for developers who are applying for planning consent for new residential properties and educational or healthcare facilities. To find out more about our services and ensure that you meet your Local Authority’s requirements and deadlines for submitting a BS 8233 report, get in touch today.
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