Extensions in Bury: design, planning and build
More space without moving: we plan and build extensions across Bury, with one team for the drawings, the council and the build.
- Postcode districtsBL0, BL8, BL9, M26, OL10
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation

Which extension suits a Bury home?
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
Start by comparing double-storey extensions, kitchen extensions and single-storey rear extensions: between them they cover most of the layouts we see requested for houses like these.
Planning rules in Bury
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.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
Bury and surrounding towns
Postcode districts we cover around Bury include BL0, BL8, BL9, M26, OL10. Nearby, we also take on projects in Radcliffe (3 miles), Heywood (3 miles), Whitefield (3 miles), Prestwich (5 miles), Middleton (5 miles). For homes towards Lancashire, Rawtenstall is around 7 miles away.
What extensions cost in Bury
Prices on this page use our North West England factor of ×0.95, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
Extension types and starting prices
- Extension plans and drawings · from £1,100
- Bedroom extensions · from £24,500
- Side extensions · from £20,500
- Planning permission for extensions · from £300
- Porch extensions · from £3,800
- Home office extensions · from £15,000
- Utility and boot room extensions · from £13,000
- Single-storey rear extensions · from £19,500
- Flat roof extensions · from £19,500
- Side return extensions · from £17,000
- Conservatory replacement extensions · from £19,000
- Extensions over a garage · from £22,500
- Building regulations for extensions · from £850
- Pitched roof extensions · from £21,000
- Kitchen extensions · from £25,500
- Glass box extensions · from £28,500
- Annexe extensions · from £52,000
- Orangery extensions · from £28,500
- Wraparound extensions · from £34,000
- Double-storey extensions · from £36,000
- Timber frame extensions · from £19,500
- Bungalow extensions · from £24,500
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Bury
How much does an extension cost in Bury?
Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. 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.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
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 Bury
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.