Points to consider re Barnett Wood Lane


Although this site formally comes within Leatherhead’s boundary, it will nevertheless have a considerable impact on Ashtead.

Points to note if considering commenting on this development

Noise and Air Quality

• The site’s proximity to the A243 & M25 means that noise levels and air quality are potential constraints to development. MVDC has employed consultants to assess both of these and the reports have concluded that neither presents an issue that cannot be resolved through mitigation measures. However see the following web sites:-


and https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0228092&fbclid=IwAR3vHJ7SHzgvJZz4EXCdJ-nRbVOYMjpfHUif48v4J-ScbMNoeFWtbcHN5mI

• The noise assessment is based on projected levels of noise using a computer model that is the standard in use by all noise and acoustic engineers and it would be difficult to challenge. Any suggested noise mitigation measures would form part of the planning conditions should a detailed planning application be made and approved.

• Air quality measurements have adhered to Government standards and, given that these have not been updated in the past 5 years, there is a possibility that the findings could be challenged if the assessments were to be conducted using more recently developed standards of measurement.

Traffic levels

• Surrey County Council has acknowledged that the roads around Junction 9 of the M25 are congested. MVDC & SCC have committed to working on strategic options to address known transport issues.

The loss of a formally designated Asset of Community Value - the allotments. These are likely to be reinstated on land on the Ashtead side of the road bridge on north BWL where soil quality is poor and access more difficult.

The site assessment acknowledges that the site “is liable to some small patches of surface water flooding” on its northern section. In addition great care will need to be taken with the design of the two estates on either side of the road in order not to exacerbate the flooding issues downstream and upstream on the Rye Brook. The design must take into account the increased run-off caused by the large volumes of concrete, tarmac and roofing covering the two sites.

The loss of Green Belt and specifically the separator between Ashtead & Leatherhead.