Wraparound extensions in Smethwick
Thinking about a wraparound extension for your Smethwick home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.
- Guide price in SmethwickFrom £34,500 inc VAT
- PlanningUsually a householder application
- Build time14–20 weeks on site
- Postcode districtsB16, B18, B21, B66, B67
What we take care of
- Structural design for the corner and openings
- Householder planning application
- Full internal finish or kitchen-ready shell
- Foundations, drainage and any manhole relocation
- Party wall notice support (England and Wales)
- Roof with glazing along the side return
Guide prices for Smethwick
For Smethwick we adjust our national guide rates by ×0.97, the factor we use for West Midlands. Figures include VAT; your written quote after the survey replaces them.
Typical rates in Smethwick: £1,940 to £3,590 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| Compact L-shape 18 m² | £34,500 – £42,000 | £40,000 – £51,000 | £50,500 – £65,000 |
| Medium L-shape 25 m² | £48,500 – £58,500 | £55,500 – £70,500 | £70,000 – £90,000 |
| Large L-shape 32 m² | £62,000 – £74,500 | £71,000 – £90,500 | £90,000 – £115,000 |
Try the guide-price tool to see a range for your own size and finish.
Covering Smethwick
Our survey diary covers Smethwick, including B16, B18, B21, B66, B67, B68. Neighbouring towns we cover include West Bromwich (2 miles), Birmingham (3 miles), Halesowen (5 miles), Wednesbury (5 miles).
Just over the Worcestershire border, Bromsgrove is about 12 miles away. Across the West Midlands, brick-built semis with long gardens are common, so single-storey and two-storey rear extensions are popular choices.
Planning and approvals in Smethwick
In England a wraparound extension is assessed as both a side and a rear extension, and the combination usually falls outside permitted development, so most need a householder planning application (£548 from 1 April 2026).
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
From first visit to completion
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
It starts with a visit to your house to measure, check access and talk through ideas and budget.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
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.
Common questions in Smethwick
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.
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.
How long does a wraparound extension take to build in Smethwick?
On site, typically 14 to 20 weeks once approvals are in place. Before that, allow 8–16 weeks design and approvals.
How much does a wraparound extension cost?
Our guide range is about £1,940 to £3,590 per m² including VAT. A 25 m² standard-spec wraparound typically lands around £55,500 to £70,500 in Smethwick before design and council fees.
Will I need to move a drain?
Often. Side returns frequently contain a manhole or a shared drain. Building near or over a public sewer needs the water company’s consent in England and Wales, which we arrange.
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.