
House Extensions in Horsforth
Rear, side and wrap-around extensions with first-class finishing for homes in Horsforth
House Extensions in Horsforth by BMK Joinery & Building
Horsforth is one of the larger suburbs on the north-west side of Leeds and an area we cover regularly from our LS16 base. We provide house extensions for homeowners in Horsforth (LS18) and nearby Cookridge, Guiseley and Pudsey.
Many homes in Horsforth are 1930s to 1980s semis and detached houses with room to grow at the rear or the side. Single storey kitchen extensions, wrap-around layouts and two storey additions are all common. We build them with the foundations, steelwork, roof and finishing carpentry handled by one team.
An extension is one of the best ways to gain living space without moving. BMK Joinery & Building Ltd handles the whole build, from groundworks, brickwork and roofing to bi-fold doors, roof windows and the internal joinery that finishes the room. Having joiners and builders in one team means the structure and the finish are planned together.
- Single storey rear and side extensions
- Two storey and wrap-around extensions
- Bi-fold doors, French doors and roof windows
- Brick, render and tile finishes matched to your home
- Steelwork, structural openings and open-plan layouts
- Joinery finishing: skirting, architraves, doors and fitted units
Building and joinery in Horsforth
Horsforth mixes Victorian stone terraces near the older centre with interwar and post-war semis and newer estates further out. That variety means everything from side-return extensions on terraces to dormers on semis and full kitchen refits.
Many single storey rear extensions can be built under permitted development, but depth, height and boundary rules apply, so check with Leeds City Council before committing. We are happy to talk through the options.
Horsforth falls under Leeds City Council. Some older parts of the area may sit within conservation areas, so we check early whether permitted development rights apply to your house.
Examples of our house extensions



Photos show recent BMK projects in the Leeds area.
House Extensions costs in Horsforth
The cost of a house extension depends mainly on its size, the structure and the specification you choose. We will not guess a price over the phone. After a free site visit we send a clear written quote so you can compare like with like.
- The size and number of storeys of the extension
- Ground conditions, foundations and drainage
- Structural steelwork and the size of any openings
- Roof type, brick or render finish and window and bifold door specification
- Kitchen, flooring and finishing joinery inside
As extension builders and joiners in Leeds, we deliver single storey, two storey, kitchen, rear, side return and wrap-around extensions, plus garage conversions and orangery-style additions.
Request a free written quote for Horsforth or call 07950 707341.
Our simple process
Free visit & quote
We visit, listen to what you want and give you a clear, no-obligation quote.
Plan & prepare
We agree the programme, order materials and arrange any building control or engineer input.
Build with care
Our team works tidily, on time and keeps you updated.
Handover
We walk through the finished job with you and only finish when you are happy.
House Extensions in Horsforth: questions answered
Do you provide house extensions in Horsforth?
Yes. We are a Leeds based joinery and building company and we regularly work in Horsforth and nearby areas including Cookridge, Guiseley and Pudsey. Call 07950 707341 or send us a message to arrange a free visit.
Do I need permission for house extensions in Horsforth?
It depends on the property and the work. Horsforth is covered by Leeds City Council, and the planning notes on this page set out what usually applies. We can talk through your own property when we visit and point you to the right application if one is needed.
How much does a house extension cost in Horsforth?
It depends on size, structure, finishes and access. We visit, listen to what you want and give a clear written quote, so there are no vague estimates.
Do I need Building Regulations approval for an extension?
Yes. Building Regulations apply to almost every extension, whether or not planning permission is needed, and cover structure, insulation, drainage and fire safety.
Other services in Horsforth
- Loft Conversions & Dormers in Horsforth
- Oak Frames & Vaulted Ceilings in Horsforth
- Kitchens & Flooring in Horsforth
- Staircases & Glass Balustrades in Horsforth
- Doors & Windows in Horsforth
- Roofing & Roof Repairs in Horsforth
- Decking & Garden Structures in Horsforth
- Fitted Joinery & Media Walls in Horsforth
All services in Horsforth · House Extensions in Leeds · All areas covered
House Extensions near Horsforth
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