The Kennet Valley Park site covers over 910 hectares (2,250 acres). It is located north of the M4 and adjacent to the Reading-Basingstoke and Reading-Theale-Newbury railway lines, south-west of Reading.About one fifth of the site will be developed. The rest will remain as meadows, woodland and open water.

The area between the Kennet and Avon Canal and the M4 is a degraded landscape as a result of intensive mineral excavations over a number of years. Some mineral voids have been landfilled whilst other areas have been restored as lakes. The lakes are used for a variety of recreational purposes including sailing, water-skiing and angling.

By comparison, the water meadows to the north of the Kennet and Avon Canal have remained largely undisturbed. As part of PRUPIM's proposals, this area will be protected from development and managed in the long-term as both an ecological and recreational resource.