Premium garden rooms across North London
Timber-frame structures with high-performance insulation, double-glazed aluminium doors, hardwired power and data, heating and lighting. Designed to complement your home and garden.
Our Services
Garden Rooms
Insulated, year-round garden rooms—premium home offices, studios, and gym spaces designed and built to last.
Accredited & Insured
Builders Barnet · North London · Hertfordshire
Add a premium home office, studio or gym to your garden with a fully insulated garden room. Built to the same specification as a small extension, our garden rooms are designed for year-round use.
- Bespoke garden offices & studios
- Fully insulated for year-round use
- Power, data, heating & lighting
- Permitted development specialists
GET A PRICE
How much will your project cost?
Get an instant cost estimate for your extension, loft conversion, renovation or new build — tailored to your project in under 60 seconds.
Permitted development
Most garden rooms fall under permitted development. We confirm requirements for your property and handle any planning where needed.
FAQs
Common questions
Do garden rooms need planning permission?
Most garden rooms fall under Permitted Development and don't need planning permission, provided they meet size limits (typically no more than 50% of garden coverage, maximum 2.5m high if within 2m of a boundary). We advise on planning for every project.
How much does a garden room cost?
A high-quality insulated garden room typically costs £25,000–£60,000 depending on size, specification and level of finish. Use our Online Price Guide for an instant estimate.
Can a garden room be used all year round?
Yes — our garden rooms are fully insulated and include heating and electrics as standard, making them suitable for year-round use as home offices, studios, gyms or entertainment spaces.
How long does a garden room take to build?
A typical garden room takes 6–10 weeks from groundworks to completion.
Do garden rooms add value to a property?
Yes — a well-built garden room typically adds value equivalent to 1.5x its build cost in the current North London market, particularly for home office spaces.
What foundations do garden rooms need?
Most garden rooms are built on concrete pad foundations or a timber frame base. The appropriate foundation type depends on your garden's ground conditions, which we assess during a free site visit.
Can I have electrics, plumbing and Wi-Fi in my garden room?
Yes — we install full electrical fit-outs including sockets, lighting and heating as standard. Plumbing for a toilet or kitchenette can be added. We also advise on Wi-Fi and data cabling.
What's the largest garden room you can build without planning permission?
Under Permitted Development, a garden room can be up to 2.5 metres high if within 2 metres of any boundary, or up to 4 metres high (dual pitch) further into the garden. Maximum coverage of all outbuildings must not exceed 50% of the garden area. We assess this for every project.
Explore More
Other services
GET A PRICE
How much will your project cost?
Get an instant cost estimate for your extension, loft conversion, renovation or new build — tailored to your project in under 60 seconds.
Get Started
Ready to build something exceptional?
Book a free, no-obligation consultation. We'll visit your home, listen to your brief and tell you honestly what's possible.
Or message us directly on WhatsApp — we typically respond within the hour.