Council Planning Officers require PPG24 noise surveys, at the planning application
stage of a residential development; regardless of whether it’s the conversion of
an existing building or a new build. As independent Environmental Health Officers,
we can help you achieve planning permission through the assessment of your site and
PPG24 noise assessments are requested because new dwellings can often be exposed
to road traffic, rail and/or mechanical and commercial noise. A 24hour noise assessment
is conducted in order to determine the Noise Exposure Category that the proposed
property should fall into. The category determines the level of noise mitigation
measures required in order to provide satisfactory noise protection to the dwelling’s
An assessment is then carried out to determine the suitability of the land for housing.
This is done by identifying Noise Exposure Categories for various types of noise
source which have the following implications:
• NEC A Noise need not be considered as a determining factor in granting planning
permission, although the noise level at the high end of the category should not be
regarded as a desirable level.
• NEC B Noise should be taken into account when determining planning applications
and, where appropriate, conditions imposed to ensure an adequate level of protection
• NEC C Planning permission should not normally be granted. Where it is considered
that permission should be given, for example because there are no alternative quieter
sites available, conditions should be imposed to ensure a commensurate level of protection
• NEC D Planning permission should normally be refused.
Please contact us for further information and to discuss how we can help you gain
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