The Thames Basin Heaths SPA covers an area of 8,275 ha across Hampshire, (the former county of) Berkshire and Surrey. It is part of a complex of heathlands in Southern England that support important populations of breeding birds, including the Dartford Warbler, Nightjar and Woodlark. More general information on SPAs is available from Natural England.
Only a small part of the SPA (about 80 ha) lies within Waverley, north of Farnham. There is, however, a “Zone of Influence” around the SPA within which measures are required to avoid adverse impacts on its conservation interests. This ‘buffer zone’ extends from 400 metres to 5 km from the perimeter of the SPA and covers most of the built-up area of Farnham.
Map showing the areas covered by 5km buffer zone