Extensions in Aylesbury: design, planning and build

Aylesbury and surrounding towns

Site visits are available across Aylesbury (HP17, HP19, HP20, HP21, HP22). Nearby, we also take on projects in Chesham (12 miles), Bletchley (13 miles), High Wycombe (13 miles), Amersham (13 miles), Milton Keynes (16 miles). For homes towards Oxfordshire, Thame is around 9 miles away.

• Chesham
• Bletchley
• High Wycombe
• Amersham
• Milton Keynes

Choosing the right extension in Aylesbury

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.

The types we would usually look at first for a home in Aylesbury are double-storey extensions, orangery extensions and single-storey rear extensions, depending on the garden and how the house is laid out.

Do extensions in Aylesbury 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 single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.

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).

Guide prices for Aylesbury

Every figure below is a guide for Aylesbury, adjusted for South East England build costs (×1.12) and including VAT. Design and council fees are shown separately on each page.