West Bromwich house extensions
More space without moving: we plan and build extensions across West Bromwich, with one team for the drawings, the council and the build.
- Postcode districtsB21, B66, B67, B69, B70, B71
- Price regionWest Midlands (×0.97)
- Planning rulesEngland
- Site visitFree, no obligation
What extensions cost in West Bromwich
We publish guide prices so you can budget before anyone visits. For West Bromwich they are adjusted by ×0.97, the factor we use across West Midlands.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Kitchen extensions | 20 m² | £40,500 – £51,500 |
| Conservatory replacement extensions | 14 m² | £29,000 – £37,500 |
| Wraparound extensions | 25 m² | £55,500 – £70,500 |
| Orangery extensions | 16 m² | £43,000 – £54,500 |
| Extensions over a garage | 12 m² | £24,000 – £31,500 |
| Single-storey rear extensions | 20 m² | £39,500 – £50,500 |
Where we work near West Bromwich
We cover West Bromwich and the postcode districts B21, B66, B67, B69, B70, B71. Nearby, we also take on projects in Smethwick (2 miles), Wednesbury (3 miles), Tipton (3 miles), Dudley (4 miles), Walsall (5 miles). Just over the Staffordshire border, Great Wyrley is about 10 miles away.
Planning rules in West Bromwich
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).
Choosing the right extension in West Bromwich
Across the West Midlands, brick-built semis with long gardens are common, so single-storey and two-storey rear extensions are popular choices.
Depending on the plot, single-storey rear extensions and double-storey extensions are often the strongest options, with kitchen extensions worth considering where there is room.
Every extension type in West Bromwich
- Timber frame extensions · from £20,000
- Bedroom extensions · from £25,000
- Porch extensions · from £3,850
- Orangery extensions · from £29,000
- Single-storey rear extensions · from £20,000
- Flat roof extensions · from £20,000
- Side return extensions · from £17,000
- Home office extensions · from £15,500
- Wraparound extensions · from £34,500
- Annexe extensions · from £53,000
- Building regulations for extensions · from £850
- Double-storey extensions · from £36,500
- Extension plans and drawings · from £1,150
- Kitchen extensions · from £26,000
- Conservatory replacement extensions · from £19,000
- Side extensions · from £21,000
- Bungalow extensions · from £25,000
- Planning permission for extensions · from £300
- Utility and boot room extensions · from £13,500
- Extensions over a garage · from £23,000
- Pitched roof extensions · from £21,500
- Glass box extensions · from £29,000
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
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
With the design and specification agreed, you get a fixed written price and a start date.
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 West Bromwich
How much does an extension cost in West Bromwich?
Using our West Midlands factor (×0.97), a standard-spec single-storey extension of 20 m² is a guide £39,500 to £50,500 including VAT, and a 32 m² two-storey extension £55,500 to £73,000. Your written price follows the survey.
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.
How long does an extension take in West Bromwich?
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.
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.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for West Bromwich, and the guide-price tool gives a range for your own size and finish in about a minute.
Book a free site visit in West Bromwich
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.