UK GARDEN ROOM GUIDES — UPDATED FOR 2026
Plan your garden room with real numbers, not sales copy.
23 independent guides covering cost, planning permission, building regulations and specification — written to help you budget properly and ask the right questions, before you talk to a single installer.
23
Independent guides
2026
UK pricing, kept current
0%
Installer commission on content
Start here
The four pages most people read first.
Garden Room Cost UK: The Complete 2026 Price Guide
The complete 2026 price breakdown by size, material and spec.
Garden Room Planning Permission UK: The Complete Guide
Do you need planning permission? The rules, explained plainly.
Garden Room Building Regulations UK: The Complete Guide
Building regs, the 30 sqm rule, and when full approval kicks in.
How to Choose a Garden Room Company in the UK
How to compare quotes and spot a company worth trusting.
Browse by category
All 23 guides, organised by what you’re trying to work out.
Why Garden Room Compass
Independent by design
We don’t sell leads through this content and don’t take commission for naming installers, so there’s no incentive to steer you toward a bigger spec.
Cost, planning and spec in one place
Most sites cover pricing or planning rules, not both. Every guide here connects the two, because they affect each other.
Reviewed for 2026 UK pricing
Cost ranges reflect current UK market rates and are revisited as pricing moves, rather than left to go stale.
Common questions
Do I need planning permission for a garden room?
Usually not, provided it meets permitted development limits on height, position and coverage. See the full planning permission guide.
How much does a garden room cost in the UK?
Most buyers spend £8,000–£30,000 depending on size and specification. See the full cost guide or try the cost calculator.
What’s the difference between a garden room and a granny annexe?
A kitchen plus bathroom plus independent access typically tips a garden room into annexe territory. See the annexe cost guide.
How do I choose a good garden room company?
Compare at least three itemised quotes for the same spec and check real completed projects. See how to choose a garden room company.
Get a realistic number for your project
Free to use, no email required — run your specification through the calculator.