Kitchen Extensions Birmingham | Open Plan Kitchen Extension Builders

A kitchen extension is one of the most popular and rewarding home improvements in Birmingham. By extending the back of your house, you can create a bright, open-plan kitchen-diner that becomes the heart of your home — adding both space and significant value.

Mr E. Builders specialises in kitchen extensions across Birmingham and the West Midlands. We handle everything from structural drawings and planning advice through to the kitchen fit-out and final decoration.

What Is a Kitchen Extension?

A kitchen extension involves building out from the back (or side) of your home to create a larger kitchen or kitchen-dining space. This is different from a kitchen renovation, which refits the existing kitchen in the same space.

Kitchen extensions are ideal for:

• Creating an open-plan kitchen-diner with direct access to the garden
• Adding a kitchen island and more worktop space
• Installing bifold or sliding doors for indoor-outdoor living
• Making a dark, cramped kitchen bright and spacious
• Adding value before a house sale

Kitchen Extension Options in Birmingham

Single Storey Rear Extension

The most popular option. Extends the back of the house by 3–8 metres (depending on planning rules). Usually combined with opening up the rear wall to create an open-plan space. Costs from £25,000 in Birmingham.

Side Return Extension

Fills in the narrow passage down the side of terraced and semi-detached houses — a common feature in Birmingham's Victorian and Edwardian streets. Creates a wider kitchen without significantly reducing garden space. Costs from £20,000.

Wrap-Around Extension

Combines a rear and side return extension for the maximum kitchen space. Suits corner plots and detached properties. Costs from £45,000.

Orangery or Garden Room Extension

A more premium option with glazed roof panels, creating a light-filled kitchen-dining space with a connection to the garden. Costs from £35,000.

Kitchen Extension Costs in Birmingham (2026)

What affects the price:

• Size and footprint of the extension
• Structural specification (steel beams, roof type, glazing)
• Kitchen specification — fitted kitchen, island, worktops, appliances
• Whether bifold/sliding doors or a lantern roof are included
• Groundworks and soil conditions
• Whether planning permission is required

Do I Need Planning Permission for a Kitchen Extension in Birmingham?

Most kitchen extensions in Birmingham fall under permitted development rights — meaning no formal planning application is needed, provided:

• The extension doesn't exceed 3m depth from the original rear wall for terraced/semi-detached (or 4m for detached)
• Height doesn't exceed 4m
• The extension doesn't cover more than 50% of the garden

Under the Larger Home Extension Scheme (prior approval), you can extend up to 6m (semi/terraced) or 8m (detached) with a simpler approval process.

Properties in Birmingham's conservation areas — including parts of Edgbaston, Harborne, Moseley and Bournville — may need full planning permission. We advise on this during our free site visit.

How Long Does a Kitchen Extension Take?

• Design and planning: 2–8 weeks (depending on whether permission is needed)
• Build (structure and shell): 6–10 weeks on site
• Kitchen fit-out and decoration: 3–5 weeks
• Total project time: typically 12–20 weeks from start to finish

Mr E. Builders — Kitchen Extension Specialists in Birmingham

We've completed dozens of kitchen extensions across Birmingham and the West Midlands. Our full project management service means you deal with one company from start to finish — no coordinating between separate builders, kitchen fitters and decorators.

What we handle:

• Structural engineering and drawings
• Building Regulations application and sign-off
• Planning advice and prior approval (where needed)
• All groundworks, brickwork, roofing and glazing
• Electrical and plumbing rough-in and first fix
• Kitchen installation (supply and fit, or fit-only)
• Plastering, flooring and decoration

We cover Birmingham, Smethwick, Dudley, Edgbaston, Hall Green, Kings Heath, Quinton, Wolverhampton and all surrounding areas in the West Midlands.

Get a Free Kitchen Extension Quote in Birmingham

Ready to plan your kitchen extension? Call us on 07474 177474, email info@mrebuilders.co.uk, or fill in our free quote form and we'll arrange a site visit at no cost.

We'll discuss your ideas, advise on planning, and give you a clear itemised price — all completely free with no obligation.