Single-storey extensions in Wednesbury

Before your single-storey extension in Wednesbury

Planning applications and lawful development certificates for Wednesbury go to Sandwell Council. Many single-storey extensions fall under permitted development, but not every house keeps those rights — conditions on newer estates, conservation areas and Article 4 directions can remove them. The structural work also needs Building Regulations approval, through the council's building control team or a registered building control approver.

Foundations within 3 metres of a neighbour's house that go deeper than theirs need party wall notice at least a month in advance.
Detached houses get a little more room: 4 metres as standard, or up to 8 metres with prior approval.
If you're building over or near a public sewer, the sewerage company has to agree before the foundations go in.

Postcode district: WS10
Planning and building control: Sandwell Council
From our West Bromwich base: 3 miles

Choices to weigh up in Wednesbury

Side or side-return extension

Uses the strip of land beside the house, often a passage or driveway. Under permitted development a side extension can be up to half the width of the original house and no more than 4 metres high. On a terrace with a narrow side return, it can widen a galley kitchen considerably without eating into the garden.

Utility, WC or boot-room extension

A smaller extension of 6–12 m² can take the washing machine, coats and a downstairs toilet out of the kitchen. Adding a WC means a new waste connection, so the position of the existing drains often decides the layout. It's a cost-effective way to free up the main rooms without a large build.

Guide prices for Wednesbury

Expect to budget between £28,000 and £90,000 depending on size and specification in Wednesbury. A 4 m × 5 m rear extension on a semi, with roof lights and bifold doors: typically £40,000–£52,000.

Guide prices for single-storey extensions
Option	Guide price	Good to know
Small rear or side extension (10–15 m²)	£28,000 – £40,000	Utility, WC or a modest kitchen extension
Rear kitchen-diner extension (18–25 m²)	£38,000 – £58,000	The glazing spec moves it within the range
Wrap-around or large extension (30 m²+)	£58,000 – £90,000	More steel and roof, and normally a planning application

Guide ranges include VAT where it applies. We confirm a fixed price for the agreed specification after visiting.

Single-storey extensions in Wednesbury: common questions

How long does a single-storey extension take?

Allow 8–12 weeks on site for most single-storey extensions, plus time beforehand for drawings and approvals. If you need a planning application or a lawful development certificate, councils aim to decide within 8 weeks. Glazing and steel are ordered early so they arrive when the shell is ready, which keeps the build from stalling halfway.

Which postcodes in Wednesbury do you work in?

We cover WS10 and the streets around them. If you're on the edge of Wednesbury, neighbouring Darlaston and Great Bridge are covered too.

Can we live at home during the build?

Yes, most families stay at home throughout. For the first several weeks the work is outside and your house is closed off from it. The disruptive part is the break-through, when the back wall comes out and the kitchen may be out of action for one to three weeks. We agree a plan for a temporary sink and cooking space before that stage starts.

Who approves single-storey extensions in Wednesbury?

Usually building control, and sometimes planning. Sandwell Council is the planning authority for Wednesbury; Building Regulations approval comes from its building control team or a registered building control approver. We'll tell you which applies after the survey.

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Get a guide price for your Wednesbury extension in a couple of minutes, then a fixed price for the agreed specification after the survey.