Extensions in Stamford: design, planning and build
We design and build house extensions for homes in Stamford and the surrounding Lincolnshire area, with guide prices adjusted for the region.
- Postcode districtsPE9
- Price regionEast Midlands (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Where we work near Stamford
We cover Stamford and the postcode districts PE9. We also work in nearby Spalding (17 miles), Grantham (19 miles), Boston (30 miles), Lincoln (40 miles), Skegness (48 miles). Oakham, in Rutland, is roughly 9 miles from Stamford and also on our list.
Approvals for an extension in Stamford
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.
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).
What works best for Stamford houses?
The East Midlands has plenty of inter-war and post-war semis and detached houses with room to extend, alongside Victorian terraces in the towns.
Start by comparing side extensions, double-storey extensions and single-storey rear extensions: between them they cover most of the layouts we see requested for houses like these.
What extensions cost in Stamford
Prices on this page use our East Midlands 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) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
Choose an extension type
- Orangery extensions · from £28,500
- Conservatory replacement extensions · from £19,000
- Extension plans and drawings · from £1,100
- Single-storey rear extensions · from £19,500
- Home office extensions · from £15,000
- Building regulations for extensions · from £850
- Utility and boot room extensions · from £13,000
- Bedroom extensions · from £24,500
- Extensions over a garage · from £22,500
- Porch extensions · from £3,800
- Kitchen extensions · from £25,500
- Glass box extensions · from £28,500
- Side extensions · from £20,500
- Timber frame extensions · from £19,500
- Pitched roof extensions · from £21,000
- Planning permission for extensions · from £300
- Double-storey extensions · from £36,000
- Flat roof extensions · from £19,500
- Annexe extensions · from £52,000
- Bungalow extensions · from £24,500
- Side return extensions · from £17,000
- Wraparound extensions · from £34,000
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
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
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Stamford
How much does an extension cost in Stamford?
Using our East Midlands 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.
Do I need planning permission for an extension in Stamford?
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.
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Stamford, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Stamford
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.