Garden Rooms London
Garden Room LondonGarden Room London — Bespoke Offices, Annexes & Garden Buildings
Bespoke garden rooms, home offices and annexes designed and built by our team — insulated, wired and finished to a proper standard. Installations from 3 weeks. Homeowners and landlords across London within the M25.
🌿 A garden room adds usable space without a full extension — home office, gym, guest room or annexe. Book a free garden survey and we'll design something that fits your space.
- Garden rooms, offices, gyms and guest annexes
- Bespoke design, supply and build
- Installations from 3 weeks on site
- Insulated, electrics and finishes included
Book Your Free Quote Visit
Pick a date and time that suits you — we will send someone out to survey your property and provide a no-obligation quote.
Or call us: 020 4634 0020
3 Wks+
Typical Install
25+
Years Trading
Bespoke
Design & Build
Fully
Insured
Built to Last, Not Flat-Pack
Proper foundations, insulation, weatherproofing and electrics — built as a permanent garden building, not a thin summer house from a catalogue.
Designed Around Your Garden
We measure your space, discuss how you'll use the room, and design a building that fits the plot — offices, studios, gyms, guest rooms and granny annexes.
From 3 Weeks to Install
Once design and materials are agreed, many garden room builds complete on site from around 3 weeks — faster than a full extension.
Full Design & Build
One team handles base, structure, glazing, insulation, electrics, plastering and finishing. Trade-supply pricing on materials.
Our work
Bespoke Summer Houses & Annexes
Garden rooms, home offices and annexes designed and built in as little as three weeks — adding usable space without moving home.

Why Cheap Garden Rooms Disappoint
Thin panels, no proper base, freezing in winter, boiling in summer, and electrics that wouldn't pass an inspection. Most budget garden rooms look fine in photos but don't work as year-round space.
- No insulation or proper damp proofing
- Flat-pack kits with no project management
- Planning rules ignored — enforcement risk
- No electrics or plumbing when you need a bathroom annexe
We build properly insulated, permitted garden buildings designed for how you'll actually use them — all year round.
Extra space at the bottom of your garden — without moving house.
Garden Buildings We Design & Build
Garden Offices
Quiet workspace at home
Garden Annexes
Guest space or granny flat
Garden Gyms & Studios
Exercise and hobby rooms
Summer Houses
Leisure and entertaining space
Bespoke Garden Rooms
Designed to your brief
Rooms with Bathrooms
En-suite garden annexes
Insulated Year-Round Builds
Not seasonal sheds
Planning Advice
Permitted development guidance
Simple Process. Fast Turnaround.
Garden Survey
We visit, measure the plot, check access and discuss how you want to use the building.
Design & Quote
Layout, spec and itemised quote — structure, insulation, glazing, electrics and finishing.
Build On Site
Foundations, frame, roof, insulation and interior fit-out. Most builds from around 3 weeks on site.
Handover
Electrics tested, snagging done, and your garden room ready to move into.
Trusted by Landlords, Homeowners & Property Managers
“Garden office built in three weeks. Proper insulation — usable all year. Much cheaper than extending the house.”
Homeowner
Sidcup
“They designed an annexe for elderly parents with a small kitchenette. Professional build, not a flat-pack kit.”
Homeowner
Kent
“Clear quote, tidy site, and the room looks like part of the garden not an afterthought.”
Google Review
★★★★★