Single-storey rear extensions in Bury St Edmunds: design, approvals and build
Our design and build teams take on single-storey extensions in Bury St Edmunds, from the first measured survey through planning and building control to the finished room.
- Guide price in Bury St EdmundsFrom £22,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsIP32, IP33
How much does a single-storey extension cost in Bury St Edmunds?
Prices below are for Bury St Edmunds, using the East of England factor of ×1.06. They are guide ranges including VAT for the build only, not a quote.
Typical rates in Bury St Edmunds: £1,860 to £3,600 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £22,000 – £26,500 | £26,000 – £33,500 | £33,000 – £43,500 |
| 4 m × 5 m 20 m² | £37,000 – £43,500 | £43,000 – £55,500 | £55,000 – £72,500 |
| 5 m × 6 m 30 m² | £55,500 – £65,500 | £65,000 – £83,000 | £82,500 – £108,500 |
For a figure based on your own dimensions, use our guide-price tool.
Working in Bury St Edmunds
Site visits are available across Bury St Edmunds (IP32, IP33). Neighbouring towns we cover include Stowmarket (13 miles), Newmarket (13 miles), Sudbury (14 miles), Haverhill (16 miles).
Just over the Norfolk border, Thetford is about 12 miles away. Across the East of England many houses sit on generous plots, and single-storey and wraparound extensions are a natural fit.
What we take care of
- Building regulations drawings and structural calculations
- Walls, steel beams and the new opening into the house
- Flat or pitched roof, rooflights or lantern
- Measured survey and design
Will the council need to approve it?
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.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
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).
Our process, step by step
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Common questions in Bury St Edmunds
Do you cover all of Bury St Edmunds?
Yes. We cover Bury St Edmunds and the surrounding parts of Suffolk. Site visits are free and there is no obligation.
Who do I contract with for a single-storey extension in Bury St Edmunds?
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 building regulations approval in Bury St Edmunds?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How deep can a single-storey rear extension be without planning permission?
In England, up to 3 m beyond the original rear wall on a semi-detached or terraced house and 4 m on a detached house, within height and boundary limits. Through the larger home extension prior approval scheme those depths rise to 6 m and 8 m. Wales, Scotland and Northern Ireland use their own rules, which we check for your address.
How much does a single-storey extension cost per square metre?
Our guide range is about £1,860 to £3,600 per m² including VAT, depending on specification. A standard-spec 4 m × 5 m room usually lands at £43,000 to £55,500 in Bury St Edmunds, plus design and council fees.
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.