Extensions in Sandhurst: design, planning and build

Sandhurst and surrounding towns

We cover Sandhurst and the postcode districts GU47, RG45. The same team covers Crowthorne (2 miles), Bracknell (5 miles), Wokingham (5 miles), Earley (8 miles), Reading (11 miles), all within easy reach. Yateley, in Hampshire, is roughly 2 miles from Sandhurst and also on our list.

• Crowthorne
• Bracknell
• Wokingham
• Earley
• Reading

What works best for Sandhurst houses?

Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.

Start by comparing orangery extensions, double-storey extensions and wraparound extensions: between them they cover most of the layouts we see requested for houses like these.

Popular extension prices in Sandhurst

We publish guide prices so you can budget before anyone visits. For Sandhurst they are adjusted by ×1.12, the factor we use across South East England.

Do extensions in Sandhurst need planning permission?

In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.

In England a two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.

Applications are decided by the local planning authority (your district, borough or unitary council).