Building · Leeds
Do You Need Planning Permission in Leeds?
Permitted development or full planning? A plain-English guide for Leeds.
5.0 / 5 · 21 Google reviewsFree, no-obligation quotesFully insured

One of the first questions every homeowner asks is whether they need planning permission for an extension in Leeds — and the honest answer is: it depends. Many single-storey rear extensions fall under permitted development rights, meaning no formal planning application is needed, provided the work stays within set size, height and boundary limits and your property isn't in a conservation area or otherwise restricted. Larger, double-storey or front-facing projects usually require full planning permission. With 20 years' experience, CLM Projects guides you through it in plain English so you know exactly where you stand before spending a penny. Whether your project is permitted development or needs a full application, one experienced team handles the drawings, planning support and Building Regulations coordination from the start. Because conditions vary by property, we always recommend confirming your specifics with Leeds City Council — and we'll happily do that with you as part of a free, no-obligation consultation.
What's Included
Our Planning Permission Service
- What typically falls under permitted development rights
- When full planning permission is usually required
- How size, height and boundary limits affect your extension
- Conservation areas, Article 4 and other restrictions to check
- Party Wall Act considerations with neighbours
- Building Regulations — separate from planning, always needed
- Preparation of drawings and planning support
- Advice to confirm your specifics with Leeds City Council
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
Planning Permission — Your Questions
Do I always need planning permission for an extension in Leeds?
No. Many single-storey rear extensions fall under permitted development and need no planning application, as long as they stay within size, height and boundary limits and the property isn't restricted. It's always subject to conditions, so we recommend confirming with Leeds City Council.
What is permitted development?
Permitted development rights allow certain building work — such as many modest single-storey rear extensions and some loft conversions — without a full planning application, provided strict criteria are met. Exceeding those limits, or being in a conservation area, means a full application is usually required.
When do I definitely need full planning permission?
You'll generally need full planning permission for double-storey extensions, extensions to the front of the house, larger projects that exceed permitted development limits, or work on flats, listed buildings and conservation areas. We'll tell you which applies to your project.
What's the difference between planning permission and Building Regulations?
Planning permission is about whether you're allowed to build; Building Regulations govern how it must be built for safety and standards. Building Regulations apply to almost all extensions even when planning permission isn't needed, and we coordinate both.
Do you handle the drawings and application for me?
Yes. We provide planning support, prepare the drawings and can manage the application process, so whether your project is permitted development or needs full planning, one experienced team handles it end to end.
How can I be certain about my property?
Because rules vary by property and location, the definitive answer comes from Leeds City Council — you can also apply for a Lawful Development Certificate to confirm permitted development. We'll help you check your specifics as part of a free, no-obligation consultation.
Planning Permission Across the Region
Leeds-based and covering the wider region — click your area, or call us to check we reach you.
Helpful Guides
Plan Your Project With Confidence
Extensions
Double Storey Extensions in Wetherby: What to Consider Before You Build
What Wetherby homeowners should check before committing to a double-storey extension, from planning and foundations to drainage, structure and pricing.
Read guideExtensions
Over-Structure Extensions in Wetherby: Building Above What's Already There
If you've searched for over-structure extensions in Wetherby, you're usually asking one thing: can I build on top of something that already exists? That might…
Read guideExtensions
House Extensions in Morley: What a Single Storey Extension Involves
If you are searching for house extensions in Morley, you are probably weighing up whether a single storey extension can give you the extra room you need, and…
Read guideFree Quote
Get a Free Planning Permission 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.
