Single-storey extensions in Coleshill

Planning your single-storey extension in Coleshill

North Warwickshire Borough Council is the planning authority for Coleshill. 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.

Detached houses get a little more room: 4 metres as standard, or up to 8 metres with prior approval.
Every extension needs Building Regulations approval, even when planning permission isn't required.
Wide glazed doors and roof lights make the biggest difference to how bright the new room feels, and to the final price.

Postcode district: B46
Planning and building control: North Warwickshire Borough Council
From our West Bromwich base: 12 miles

Options to consider in Coleshill

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.

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.

How much should you budget in Coleshill?

Prices in Coleshill match the rest of our area: £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. A free survey turns this guide into a fixed, itemised price.

Your questions answered

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.

Do you cover Coleshill?

Yes. Coleshill (B46) is about 12 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.

Will I need permission from the council in Coleshill?

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

Nearby places we cover

Other work we do in Coleshill

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