Single-storey extensions in Darlaston

What should you know before starting in Darlaston?

Walsall Council is the planning authority for Darlaston. If your plans need permission, apply early: householder applications have an eight-week target for a decision. Building Regulations approval and inspections run alongside the build.

If you're building over or near a public sewer, the sewerage company has to agree before the foundations go in.
Wide glazed doors and roof lights make the biggest difference to how bright the new room feels, and to the final price.
A lawful development certificate from Walsall Council confirms in writing that a permitted development extension is lawful, which helps when you sell.

Postcode district: WS10
Planning and building control: Walsall Council
From our West Bromwich base: 4 miles

Which option fits your home?

Wrap-around extension

Combines a side and rear extension into an L shape, giving the largest ground-floor gain. Because it extends both sideways and rearwards, a wrap-around normally needs a householder planning application rather than relying on permitted development. Expect more steelwork and a more involved roof where the two sections meet.

Rear kitchen-diner extension

The usual layout: a 3–6 metre extension across all or part of the back wall, with the old rear wall replaced by a steel beam so the new and existing rooms become one space. Roof lights or a lantern bring daylight into the middle of the house, and bifold or sliding doors open onto the garden.

Single-storey extensions prices in Darlaston

Guide prices start at £28,000 and run to £90,000 depending on size and specification. A 4 m × 5 m rear extension on a semi, with roof lights and bifold doors: around £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. Your fixed price for the agreed specification follows a free survey at your Darlaston address.

Single-storey extensions in Darlaston: 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.

Do you cover Darlaston?

Yes. Darlaston (WS10) is about 4 miles from our West Bromwich base and inside the area we cover. Call 0800 088 6248 or send the form on this page to book a free survey.

What should I prepare before the survey?

Think about how you want to use the new space, and gather anything you have about the house: old plans, deeds showing boundaries, approvals for any earlier extension, and where you think the drains run. Photos of extensions you like help us price glazing and finishes accurately. If you're in a conservation area or on a newer estate, mention it, as it can affect permitted development.

Who approves single-storey extensions in Darlaston?

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

Close to Darlaston

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Book a free survey in Darlaston and we'll measure up, check the drains and boundaries, and give you a written, itemised quote.