Extensions in Stamford Hill: design, planning and build
Every type of house extension in Stamford Hill, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsE5, E8, N4, N5, N15, N16
- Price regionLondon (×1.3)
- Planning rulesEngland
- Site visitFree, no obligation
What extensions cost in Stamford Hill
We publish guide prices so you can budget before anyone visits. For Stamford Hill they are adjusted by ×1.3, the factor we use across London.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Extensions over a garage | 12 m² | £32,500 – £42,500 |
| Conservatory replacement extensions | 14 m² | £39,000 – £50,500 |
| Double-storey extensions | 32 m² | £74,500 – £98,000 |
| Kitchen extensions | 20 m² | £54,500 – £69,000 |
| Orangery extensions | 16 m² | £58,000 – £73,000 |
Stamford Hill and surrounding towns
Site visits are available across Stamford Hill (E5, E8, N4, N5, N15, N16). Neighbouring towns we cover include Harringay (1 mile), Highbury (2 miles), Tottenham (2 miles), Holloway (2 miles), Walthamstow (3 miles). Waltham Abbey, in Essex, is roughly 9 miles from Stamford Hill and also on our list.
Which extension suits a Stamford Hill home?
London's housing is dominated by Victorian and Edwardian terraces, many with a rear outrigger and a side return, and 1930s semis in the outer boroughs. Conservation areas are common, so the planning check comes first.
Start by comparing glass box extensions, wraparound extensions and kitchen extensions: between them they cover most of the layouts we see requested for houses like these.
Do extensions in Stamford Hill 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.
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).
All extension types we build in Stamford Hill
- Extension plans and drawings · from £1,550
- Porch extensions · from £5,200
- Bedroom extensions · from £33,500
- Annexe extensions · from £71,500
- Wraparound extensions · from £46,500
- Kitchen extensions · from £35,000
- Orangery extensions · from £39,000
- Side return extensions · from £23,000
- Extensions over a garage · from £31,000
- Home office extensions · from £20,500
- Pitched roof extensions · from £28,500
- Double-storey extensions · from £49,000
- Bungalow extensions · from £34,000
- Planning permission for extensions · from £450
- Single-storey rear extensions · from £27,000
- Timber frame extensions · from £27,000
- Building regulations for extensions · from £1,150
- Conservatory replacement extensions · from £26,000
- Side extensions · from £28,500
- Glass box extensions · from £39,000
- Utility and boot room extensions · from £18,000
- Flat roof extensions · from £27,000
Free site visit
We visit your Stamford Hill home, measure up, talk through what you want and check the planning position.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
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.
Questions about extensions in Stamford Hill
How much does an extension cost in Stamford Hill?
Using our London factor (×1.3), a standard-spec single-storey extension of 20 m² is a guide £53,000 to £68,000 including VAT, and a 32 m² two-storey extension £74,500 to £98,000. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Stamford Hill, and the guide-price tool gives a range for your own size and finish in about a minute.
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.
Do I need planning permission for an extension in Stamford Hill?
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 Stamford Hill
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.