Kitchen extensions in Smethwick: design, approvals and build
We design and build kitchen extensions for houses in Smethwick, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in SmethwickFrom £26,000 inc VAT
- PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
- Build time10–16 weeks on site
- Postcode districtsB16, B18, B21, B66, B67

Working in Smethwick
Site visits are available across Smethwick (B16, B18, B21, B66, B67, B68). We also work in nearby West Bromwich (2 miles), Birmingham (3 miles), Halesowen (5 miles), Wednesbury (5 miles).
The West Midlands has a large stock of 1930s and post-war semi-detached houses, which are well suited to rear, side and over-garage extensions, plus Victorian terraces in the older inner areas.
What should I budget for a kitchen extension in Smethwick?
Labour and material costs vary across the UK, so for Smethwick we use our West Midlands factor (×0.97). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Smethwick: £1,750 to £3,400 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £26,000 – £31,000 | £30,500 – £39,000 | £38,500 – £51,000 |
| 4 m × 5 m 20 m² | £34,500 – £41,000 | £40,500 – £51,500 | £51,000 – £68,000 |
| 4 m × 7 m 28 m² | £48,500 – £57,500 | £57,000 – £72,000 | £71,500 – £95,500 |
Build cost only. A mid-range kitchen, supplied and fitted, typically adds £9,000 to £20,000.
For a figure based on your own dimensions, use our guide-price tool.
Who a kitchen extension suits
- Small or closed-off kitchens
- Homes being prepared for sale or a long-term stay
- Families who want cooking, dining and living together
We start with the working triangle and the island, then set the doors, glazing and roof lights around it. Getting this order right avoids the classic mistakes: a sink against a blank wall, glare on the hob or a fridge blocking the garden view.
Planning and approvals in Smethwick
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 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.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
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
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Kitchen extension questions answered
Do you cover all of Smethwick?
Yes. We cover Smethwick and the surrounding parts of West Midlands. Site visits are free and there is no obligation.
Do I need building regulations approval in Smethwick?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How long does a kitchen extension take to build in Smethwick?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.
How much does a kitchen extension cost?
For the extension itself our guide range is about £1,750 to £3,400 per m² including VAT. A standard 20 m² kitchen extension is typically around £40,500 to £51,500 in Smethwick, plus the kitchen itself, which commonly adds £9,000 to £20,000 for a mid-range design.
Can you fit a kitchen I buy elsewhere?
Yes. We can fit it or work with your supplier’s fitters. We need the layout early so that drains, services and lighting are in the right place.
Book a free site visit in Smethwick
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.