House extensions in Stamford
Single and double storey extensions in Stamford, with the planning route and building control sorted first.
A single storey extension in Stamford typically costs £2,400–£3,200 per m² finished ready for decoration, roughly £29,000–£38,500 for a 12m² rear extension, with any kitchen fit-out priced separately. Building control in Stamford is East Midlands Building Consultancy (South Kesteven's building control service): set by East Midlands Building Consultancy's fee schedule.
- Typical cost
- £2,400–£3,200 per m²
- Building control
- East Midlands Building Consultancy: fee confirmed per job
- Planning advice
- South Kesteven District Council: £90
- Time on site
- Several weeks
Our 2026 guide prices, all in. Your fixed price comes in writing after the site visit. Council fees checked October 2026.
What house extensions in Stamford usually involve
A well-planned extension is the most cost-effective way to add space and value to a Stamford home without the upheaval of moving. We design and build single and double storey extensions, kitchen and dining extensions, and rear and side returns across Stamford and its villages — from the limestone terraces of St Martin's to the modern estates off Casterton Road. Every build is detailed to satisfy Building Regulations and signed off through Local Authority Building Control, and where the conservation area or a listed building is involved, we work within those constraints rather than around them.
The extensions Stamford homes ask for most
Stamford's housing stock is unusually varied for a town its size, and the right extension depends heavily on the age and setting of the property.
Period stone homes in the conservation area. Around Barn Hill, St Peter's Street and St Martin's, extensions have to defer to the original building — reclaimed or matched limestone, natural or Collyweston-style slate, and timber or slim aluminium glazing rather than bulky uPVC. Planning permission is almost always required, and we prepare the work to the standard a conservation officer expects.
Victorian and Edwardian villas. Properties along Tinwell Road, Empingham Road and Kettering Road often suit a rear or side-return extension to open a cramped kitchen into one light-filled space. These builds usually involve removing a load-bearing wall and fitting a steel beam to a structural engineer's calculations — work we carry out as standard.
Post-war and modern Stamford. On the estates around Casterton Road and the newer edges of town, many extensions fall under permitted development, avoiding a full planning application. We tell you at the first visit whether your project is likely permitted development or needs full planning.
What Building Regulations cover
Beyond planning, every extension must meet Building Regulations: foundations sized for the ground, a damp proof course tied into the existing wall, insulation to current thermal standards, structural support over openings, fire safety, ventilation and drainage. We build to those standards from the start and arrange Building Control inspections at each key stage — foundations, damp proofing, structure and completion — so your finished extension comes with the certificate that matters when you sell.
Stamford & villages we cover
We build throughout Stamford and surrounding villages including Ryhall, Great & Little Casterton, Tinwell, Barnack, Uffington, Collyweston and Easton on the Hill.
Design & approvals
We help with drawings, structural calculations and the planning or permitted-development route, plus the Building Control application.
Build & structure
Foundations, brick and blockwork or matched stone, steel beams, roofing and weathering — inspected at every stage.
Thinking about extending your Stamford home?
We will visit, talk through what is possible, check the planning position and quote in writing — all free and without pressure.
Ground, drainage and conservation in Stamford
Stamford sits on Lincolnshire Limestone with well-drained loamy soils, so many sites take a soakaway well. Old cellars, rubble fill and the Welland flood plain change that locally, so we check every site rather than assume.
Stamford was the first conservation area in Britain, designated in 1967, and since December 2018 an Article 4 direction across the whole conservation area removes permitted development for hard surfaces, walls, gates and fences, porches and extensions where they face a road, footpath or open space. In practice, most front driveway and boundary work in the conservation area needs planning permission, and the council's appraisal favours York stone, granite setts and natural materials over concrete paving and tarmac.
The Environment Agency runs a flood warning area for properties near the River Welland in Stamford. You can check any address on the Environment Agency flood map.
Sources: Stamford Article 4 direction · Stamford conservation area appraisal.
Permissions and fees in Stamford
- Planning routeMany single storey rear extensions are permitted development; a householder application costs £548 and a lawful development certificate £274 (national fees from April 2026). In Stamford's conservation area the Article 4 direction removes permitted development for extensions facing a road, footpath or open space. Planning Portal guidance
- Pre-application adviceIf anything is unclear, South Kesteven District Council gives householder pre-application advice for £90. Pre-application advice
- Building regulationsEast Midlands Building Consultancy (South Kesteven's building control service): set by East Midlands Building Consultancy's fee schedule. Building control fees
- Sewers and neighboursIf a public sewer runs within 3m, you need a build-over agreement with Anglian Water. Anglian Water: building over or near sewers
- BuildOne fixed written price, then the build, inspections and the completion certificate.
Council fees and rules checked October 2026. Planning fees are the national fees from 1 April 2026.
What you get
- Planning or permitted development route confirmed before anything starts
- Structural calculations and building regulations drawings arranged
- Stone or brick matched to the house
- Build-over agreements with Anglian Water where a sewer runs close
The specification
- Drawings, calculations and approvals
- Foundations inspected by building control
- Blockwork, insulation and the outer skin in matching stone or brick
- Roof, windows and doors
- First and second fix, plastering
- Completion certificate from building control
Rated 5.0 from 37 Google reviews
“Excellent Porch Extension by Lewis and the Team We recently had a porch extension completed by Lewis and his team, and we are extremely pleased with the result. From start to finish, Lewis was professional, reliable, and easy to communicate with. …”
Deepak · Porch extension — Google review
“These guys fitted our job in at short notice, did a great job despite the harsh weather. We had great communication throughout the project as it was not quite as simple as we first thought. We definitely recommend them and will be using them for future projects”
John — Google review
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House extensions in Stamford: questions
How long does a single-storey extension take?
Will the work be signed off properly?
Can you match the existing stone or brick?
How much does a house extension cost in Stamford?
Do I need planning permission for a house extension in Stamford?
Who handles building control in Stamford?
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Request a site visit in Stamford
We measure up, check levels and drainage, and send a written proposal with the build-up, the programme and one whole price. No pressure and no follow-up sales calls.