Summary
DEFRA strategic noise mapping helps buyers understand modelled environmental noise exposure from major roads, railways and airports. It is useful for area screening, especially near major infrastructure, but it is not a substitute for visiting the property, checking local road layouts or commissioning a site specific acoustic assessment where noise is a major concern.
Definition
DEFRA noise mapping is strategic environmental noise mapping produced under noise regulations for major transport sources and large urban areas. It commonly uses indicators such as day evening night noise and night noise. A buyer should use it to spot likely exposure patterns, then ground truth at relevant times, check planning or transport schemes and consider whether the noise source affects bedrooms, gardens and home working spaces.