Extensions in Tottenham: design, planning and build
Planning an extension in Tottenham? Compare extension types, see guide prices adjusted for Tottenham and book a free site visit.
- Postcode districtsN9, N13, N15, N17, N18, N22
- Price regionLondon (×1.3)
- Planning rulesEngland
- Site visitFree, no obligation
Tottenham and surrounding towns
Across N9, N13, N15, N17, N18, N22, we can visit, measure and advise. The same team covers Edmonton (2 miles), Harringay (2 miles), Palmers Green (2 miles), Wood Green (2 miles), Walthamstow (2 miles), all within easy reach. Waltham Abbey, in Essex, is roughly 6 miles from Tottenham and also on our list.
Planning rules in Tottenham
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).
What extensions cost in Tottenham
Use these Tottenham guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Wraparound extensions | 25 m² | £74,500 – £94,500 |
| Double-storey extensions | 32 m² | £74,500 – £98,000 |
| Orangery extensions | 16 m² | £58,000 – £73,000 |
| Conservatory replacement extensions | 14 m² | £39,000 – £50,500 |
| Kitchen extensions | 20 m² | £54,500 – £69,000 |
| Extensions over a garage | 12 m² | £32,500 – £42,500 |
What works best for Tottenham houses?
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.
For many houses here, wraparound extensions, side return extensions or glass box extensions gives the most useful space for the budget.
All extension types we build in Tottenham
- Double-storey extensions · from £49,000
- Porch extensions · from £5,200
- Pitched roof extensions · from £28,500
- Side return extensions · from £23,000
- Building regulations for extensions · from £1,150
- Planning permission for extensions · from £450
- Extension plans and drawings · from £1,550
- Extensions over a garage · from £31,000
- Timber frame extensions · from £27,000
- Annexe extensions · from £71,500
- Bungalow extensions · from £34,000
- Flat roof extensions · from £27,000
- Kitchen extensions · from £35,000
- Glass box extensions · from £39,000
- Utility and boot room extensions · from £18,000
- Home office extensions · from £20,500
- Bedroom extensions · from £33,500
- Conservatory replacement extensions · from £26,000
- Side extensions · from £28,500
- Wraparound extensions · from £46,500
- Orangery extensions · from £39,000
- Single-storey rear extensions · from £27,000
Free site visit
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
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
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
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 Tottenham
How much does an extension cost in Tottenham?
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.
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.
How long does an extension take in Tottenham?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Tottenham, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Tottenham
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.