Burgess Hill house extensions
Planning an extension in Burgess Hill? Compare extension types, see guide prices adjusted for Burgess Hill and book a free site visit.
- Postcode districtsBN6, RH15
- Price regionSouth East England (×1.12)
- Planning rulesEngland
- Site visitFree, no obligation
Planning rules in Burgess Hill
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).
Popular extension prices in Burgess Hill
We publish guide prices so you can budget before anyone visits. For Burgess Hill they are adjusted by ×1.12, the factor we use across South East England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £33,500 – £43,500 |
| Kitchen extensions | 20 m² | £47,000 – £59,500 |
| Orangery extensions | 16 m² | £50,000 – £63,000 |
| Side return extensions | 11 m² | £29,500 – £37,000 |
| Double-storey extensions | 32 m² | £64,500 – £84,500 |
| Wraparound extensions | 25 m² | £64,000 – £81,500 |
What works best for Burgess Hill houses?
The South East has a broad mix of 1930s semis, post-war estates, newer developments and period cottages, and many houses have enough garden for a generous rear extension.
For many houses here, wraparound extensions, orangery extensions or single-storey rear extensions gives the most useful space for the budget.
Areas we cover around Burgess Hill
Site visits are available across Burgess Hill (BN6, RH15). Nearby, we also take on projects in Haywards Heath (3 miles), Shoreham-by-Sea (11 miles), Crawley (11 miles), Horsham (11 miles), Lancing (12 miles). Portslade, in East Sussex, is roughly 9 miles from Burgess Hill and also on our list.
Every extension type in Burgess Hill
- Bungalow extensions · from £29,000
- Flat roof extensions · from £23,500
- Conservatory replacement extensions · from £22,000
- Single-storey rear extensions · from £23,500
- Building regulations for extensions · from £1,000
- Side extensions · from £24,500
- Bedroom extensions · from £29,000
- Utility and boot room extensions · from £15,500
- Extension plans and drawings · from £1,300
- Timber frame extensions · from £23,500
- Wraparound extensions · from £40,000
- Planning permission for extensions · from £350
- Extensions over a garage · from £26,500
- Double-storey extensions · from £42,500
- Orangery extensions · from £33,500
- Glass box extensions · from £33,500
- Side return extensions · from £20,000
- Kitchen extensions · from £30,000
- Annexe extensions · from £61,500
- Pitched roof extensions · from £24,500
- Home office extensions · from £17,500
- Porch extensions · from £4,450
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Burgess Hill
How much does an extension cost in Burgess Hill?
Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.
Do you cover all of Burgess Hill?
Yes, including the surrounding parts of West Sussex. Site visits are free and there is no obligation.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Burgess Hill, and the guide-price tool gives a range for your own size and finish in about a minute.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Book a free site visit in Burgess Hill
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.