Bury St Edmunds house extensions
Planning an extension in Bury St Edmunds? Compare extension types, see guide prices adjusted for Bury St Edmunds and book a free site visit.
- Postcode districtsIP32, IP33
- Price regionEast of England (×1.06)
- Planning rulesEngland
- Site visitFree, no obligation

What works best for Bury St Edmunds houses?
The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
For many houses here, single-storey rear extensions, double-storey extensions or bungalow extensions gives the most useful space for the budget.
Do extensions in Bury St Edmunds 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 return infill is often permitted development if it stays within the height limits and is no wider than half the width of the original house. Conservation areas, listed buildings and flats always need an application, and the boundary wall usually brings in the Party Wall Act.
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).
Where we work near Bury St Edmunds
Across IP32, IP33, we can visit, measure and advise. The same team covers Stowmarket (13 miles), Newmarket (13 miles), Sudbury (14 miles), Haverhill (16 miles), Ipswich (23 miles), all within easy reach. Just over the Norfolk border, Thetford is about 12 miles away.
Guide prices for Bury St Edmunds
Every figure below is a guide for Bury St Edmunds, adjusted for East of England build costs (×1.06) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £44,500 – £56,500 |
| Extensions over a garage | 12 m² | £26,500 – £34,500 |
| Wraparound extensions | 25 m² | £60,500 – £77,000 |
| Single-storey rear extensions | 20 m² | £43,000 – £55,500 |
| Orangery extensions | 16 m² | £47,000 – £59,500 |
Every extension type in Bury St Edmunds
- Extensions over a garage · from £25,000
- Side extensions · from £23,000
- Pitched roof extensions · from £23,500
- Kitchen extensions · from £28,500
- Orangery extensions · from £31,500
- Single-storey rear extensions · from £22,000
- Extension plans and drawings · from £1,250
- Planning permission for extensions · from £350
- Bungalow extensions · from £27,500
- Annexe extensions · from £58,000
- Conservatory replacement extensions · from £21,000
- Home office extensions · from £16,500
- Timber frame extensions · from £22,000
- Utility and boot room extensions · from £14,500
- Bedroom extensions · from £27,500
- Side return extensions · from £19,000
- Double-storey extensions · from £40,000
- Wraparound extensions · from £38,000
- Glass box extensions · from £31,500
- Flat roof extensions · from £22,000
- Building regulations for extensions · from £950
- Porch extensions · from £4,200
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Bury St Edmunds
How much does an extension cost in Bury St Edmunds?
Using our East of England factor (×1.06), a standard-spec single-storey extension of 20 m² is a guide £43,000 to £55,500 including VAT, and a 32 m² two-storey extension £61,000 to £80,000. Your written price follows the survey.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
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.
Do I need planning permission for an extension in Bury St Edmunds?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Book a free site visit in Bury St Edmunds
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.