Building · Leeds
Single Storey Extensions Leeds
Rear and side single storey extensions that add space, light and value.
5.0 / 5 · 21 Google reviewsFree, no-obligation quotesFully insured

Sometimes you don't need to move — you just need more room. A single storey extension Leeds homeowners choose is the smartest way to gain a bigger kitchen, a dining space, a home office or a family room without the cost and upheaval of relocating. With 20 years' experience, CLM Projects builds rear and side single-storey extensions that flow naturally from your existing home and stand the test of time. One experienced team takes you from drawings and planning support through groundworks, brickwork, roofing, glazing and finish, to a watertight handover — built properly throughout. We coordinate Building Regulations, keep the site clean and respectful, and work to a clear programme. Fully insured and proudly Leeds-based, we're built on trust and built to last. If you're weighing up how much space and value you could add, book a free, no-obligation quote and we'll talk it through.
What's Included
Our Single Storey Service
- Architectural drawings & planning support
- Structural calculations and steel beams where required
- Groundworks & foundations
- Brickwork and blockwork matched to your property
- Flat, pitched or lantern roofing options
- Glazing — bi-fold doors, French doors and rooflights
- First & second fix electrics and plumbing coordinated
- Plastering and full internal finish
- Building Regulations coordination and sign-off
Our Work
Building Work by CLM Projects

Glazed Roof Lantern Living Space
Building
Open-Plan Kitchen Extension
BuildingWhy CLM Projects
What Our Building Customers Say
Real, verified Google reviews
“Great company — built my extension years ago and recently a garage conversion into an office, plus other building work. Respectful and quality finish, I highly recommend.”
“Scott… has completed the groundworks and drainage for my wrap-around side/rear extension. Scott was professional from start to finish, he has great communication, and exceeded my expectations. He turned up everyday, rain or…”
“Great guys to work with, highly skilled and people you can trust to do work properly and leave to it. I would highly recommend to anyone wanting quality service.”
How We Work
The CLM Process
Survey & written quote
We visit, measure and photograph the job, then send a clear written quote with exactly what's included.
A planned start date
Once you accept, we book your start date, order materials and handle drawings or building regs where needed.
Staged payments
A deposit to book, then agreed stages as the work progresses. Anything extra is priced and agreed with you first.
Sign-off & guarantee
We walk through the finished work with you, sort any snags, and our workmanship is guaranteed.
Why CLM Projects
- CLM Projects Leeds Ltd, a registered company
- Fully insured (public liability)
- Written quotes, agreed before we start
- Staged payments, extras agreed first
- Workmanship guaranteed
- 20 years in the trade across Leeds
FAQs
Single Storey — Your Questions
Do I need planning permission for a single storey extension in Leeds?
Many single-storey rear extensions fall within permitted development rights, subject to size, height and boundary limits and always to conditions. We recommend confirming your case with Leeds City Council, and we'll prepare the drawings and manage any application needed.
How much space can a single storey extension add?
It depends on your plot and permitted development limits, but a well-planned rear or side extension can add a substantial room such as a large kitchen-diner or family space. We'll assess what's realistic on your property during your free quote.
How long does a single storey extension take?
Typically around 8 to 12 weeks on site depending on size, groundworks and finish. You'll receive a clear programme with your quote so the timeline is set out upfront.
What about the party wall — do I need an agreement with my neighbour?
If your extension involves work on or near a shared boundary or wall, the Party Wall Act may apply and require notice to your neighbour. We'll flag this early and advise you on the steps so nothing holds up the build.
Will you manage Building Regulations?
Yes. We coordinate Building Regulations and the required inspections throughout, and provide planning support and drawings, so it's all handled by one experienced team.
Single Storey Across the Region
Leeds-based and covering the wider region — click your area, or call us to check we reach you.
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Get a Free Single Storey Quote in Leeds
Tell us about your project and we'll come back with a clear, no-obligation quote. Prefer to talk? Call or WhatsApp 07726 290864.
Ready to start your project?
Free, no-obligation written quotes from CLM Projects Leeds Ltd. Fully insured, workmanship guaranteed, 20 years in the trade.
