Local Authority planning departments often require developers to conduct noise impact assessments as supporting evidence for their development proposals. For new noise-sensitive developments such as residential buildings this is often conducted to ensure internal room noise levels meet the guidance detailed in BS8233:2014 and newer guidance in ProPG. New noise-generating developments such as industrial equipment or ventilation often has to demonstrate that the new noise source will not adversely impact the surrounding area.

BS4142 Noise Assessments are carried out to determine the likelihood of complaints arising from external industrial or commercial noise sources. Whether it is a kitchen extraction unit, external condenser or other industrial process, BAT have the expertise to measure and/or calculate the noise levels at the nearest noise-sensitive receptors. BAT can then produce a report following the assessment to advise whether mitigation measures are required and/or how best to achieve the reduction in noise in a cost effective manner. A BS4142 assessment may be required as part of compliance with POL 05 of BREEAM as well as meeting planning conditions.

BAT has the knowledge, experience and equipment to conduct noise surveys and reports as supporting evidence for planning across the UK. Surveys are usually undertaken in accordance with the survey principles detailed in BS7445-1 2003 and BS4142:2014, with a series of measurements taken of the general noise levels and types of noise events at the local acoustic environment. These measurements are then analysed by BAT and a conclusion presented as to whether noise mitigation measures will be required, to ensure the proposed development complies with the appropriate standards.

If the proposed development is found to require mitigation then the report can be extended to include a detailed scheme of the most cost-effective noise mitigation measures required.