Single-storey extensions in Chelmsley Wood

Before your single-storey extension in Chelmsley Wood

Planning applications and lawful development certificates for Chelmsley Wood go to Solihull 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.

Under permitted development, a rear extension on a semi or terrace can usually project 3 metres from the original back wall, or 6 metres through the prior approval route.
A lawful development certificate from Solihull Council confirms in writing that a permitted development extension is lawful, which helps when you sell.
Most of the build happens outside, so the kitchen is usually only out of action for one to three weeks near the end.

Postcode district: B37
Planning and building control: Solihull Council
From our West Bromwich base: 11 miles

Which options suit homes in Chelmsley Wood?

Flat roof or pitched roof

Flat roofs, usually GRP fibreglass or EPDM rubber, keep the height down near boundaries and suit roof lanterns. Pitched or lean-to roofs with tiles to match the house look more traditional and shed rain faster, but need more height. The choice affects permitted development limits, cost, and how much light reaches the existing rooms.

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.

What does your single-storey extension cost in Chelmsley Wood?

For a home in Chelmsley Wood, our guide range is £28,000–£90,000 depending on size and specification. A 4 m × 5 m rear extension on a semi, with roof lights and bifold doors: usually £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.

Questions about single-storey extensions in Chelmsley Wood

Do I need to tell my neighbours about an extension?

You don't need their permission for permitted development, but you will usually need to involve them. Under the prior approval route the council writes to adjoining neighbours and gives them 21 days to comment. If the build is on the boundary or the foundations are deep and close to their house, the Party Wall Act requires formal written notice. A friendly conversation before any notice arrives usually makes everything smoother.

How do I book a survey in Chelmsley Wood?

Send the form on this page, use the guide-price tool or call 0800 088 6248 free. We'll ask a few questions about your single-storey extension and arrange a time to visit.

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.

Will I need permission from the council in Chelmsley Wood?

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

Single-storey extensions near Chelmsley Wood

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