Home extensions in Stepney
More space without moving: we plan and build extensions across Stepney, with one team for the drawings, the council and the build.
- Postcode districtsE1W, E1, E2, E3, E14, SE16
- Price regionLondon (×1.3)
- Planning rulesEngland
- Site visitFree, no obligation
Popular extension prices in Stepney
Every figure below is a guide for Stepney, adjusted for London build costs (×1.3) and including VAT. Design and council fees are shown separately on each page.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £54,500 – £69,000 |
| Conservatory replacement extensions | 14 m² | £39,000 – £50,500 |
| Orangery extensions | 16 m² | £58,000 – £73,000 |
| Double-storey extensions | 32 m² | £74,500 – £98,000 |
| Single-storey rear extensions | 20 m² | £53,000 – £68,000 |
Covering Stepney and nearby
Site visits are available across Stepney (E1W, E1, E2, E3, E14, SE16). The same team covers Bethnal Green (1 mile), Bow (1 mile), Stratford (2 miles), Canning Town (3 miles), West Ham (3 miles), all within easy reach. Waltham Abbey, in Essex, is roughly 12 miles from Stepney and also on our list.
Planning rules in Stepney
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 works best for Stepney 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.
Depending on the plot, glass box extensions and wraparound extensions are often the strongest options, with kitchen extensions worth considering where there is room.
Every extension type in Stepney
- Kitchen extensions · from £35,000
- Pitched roof extensions · from £28,500
- Home office extensions · from £20,500
- Porch extensions · from £5,200
- Bedroom extensions · from £33,500
- Conservatory replacement extensions · from £26,000
- Extension plans and drawings · from £1,550
- Side return extensions · from £23,000
- Timber frame extensions · from £27,000
- Side extensions · from £28,500
- Orangery extensions · from £39,000
- Utility and boot room extensions · from £18,000
- Building regulations for extensions · from £1,150
- Glass box extensions · from £39,000
- Annexe extensions · from £71,500
- Single-storey rear extensions · from £27,000
- Extensions over a garage · from £31,000
- Wraparound extensions · from £46,500
- Bungalow extensions · from £34,000
- Flat roof extensions · from £27,000
- Planning permission for extensions · from £450
- Double-storey extensions · from £49,000
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
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
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions about extensions in Stepney
How much does an extension cost in Stepney?
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.
How long does an extension take in Stepney?
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.
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 you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Stepney, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in Stepney
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.