Policy information sourced from Bromley Local Plan

Policy 119 Noise Pollution

In order to minimise adverse impacts on noise sensitive receptors, proposed developments likely to generate noise and or vibration will require a full noise/ vibration assessment to identify issues and appropriate mitigation measures.

In most cases where there is a risk of cumulative impact on background level over time or where an area is already subject to an unsatisfactory noise environment, applicants will be required to ensure that the absolute measured or predicted level of any new noise source is 10dB below the existing typical background LA90 noise level when measured at any sensitive receptor.

New noise sensitive development should be located away from existing noise emitting uses unless it can be demonstrated that satisfactory living and working standards can be achieved and that there will be no adverse impacts on the continued operation of the existing use.

The design and layout of new development should ensure that noise sensitive areas and rooms are located away from parts of the site most exposed to noise wherever practicable. External amenity areas should incorporate acoustic mitigation measures such as barriers and sound absorption where this is necessary and will assist in achieving a reasonable external noise environment.

In mixed use buildings, conversions and changes of use which increase internal noise should incorporate measures to minimise the transfer of noise between different parts of the building. An airborne sound insulation of at least 55dB D’nT,w + Ctr will usually be expected in separating partitions between residential dwellings and non-residential noise generating uses. A higher standard may sometimes be necessary depending on the nature of the development.

For more information please see the Local Plan