Garden Rooms Crawley

Name: Garden Office Buildings
Address: Rear of 158 Main Road, Biggin Hill, Kent, TN16 3BA, GB
Telephone: 01689 818 400
Price range: ££

Bespoke garden rooms, offices, gyms and studios designed and built for Crawley homes. Family company, 1,000+ builds since 2004.

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Garden Rooms Crawley

We’re Garden Office Buildings, a family company that’s been building bespoke garden rooms since 2004. We cover Crawley and all the surrounding areas, and we’d love to help you make the most of your outdoor space.

Based in Biggin Hill, Kent, we work with structural engineers, architects, and quality manufacturers on every project. What you get is a proper garden room built on site by experienced carpenters, not a flat pack assembled in a day. Crawley’s neighbourhoods, from Maidenbower to Three Bridges, are full of family homes with gardens that are perfect for a well built garden room.

All our buildings meet building control requirements and come with a 10-year warranty. With 100mm PIR insulation in every wall, floor, and roof panel, they’re designed to last well beyond 50 years. Our garden rooms are built to a standard that goes well beyond what most people expect.

We customise everything. Window positions, door configurations, internal layouts, partition walls, bathrooms, kitchens. Every project gets its own architectural drawings so you know exactly what you’re getting before we start.

Have a look at our buildings and prices to get an overview, or visit our showroom in Biggin Hill to see the quality for yourself. It’s about 35 minutes from Crawley.

Save £5,000 with our Ambassador Programme. Allow us to photograph your completed garden room and host up to 3 visits from prospective customers (by appointment only). Learn more.

Built Right, Built to Last

Garden Office Buildings does things differently. Have a look at the fascia, soffits, trims, and rear cladding on any of our builds. These are proper structures, put together on site by experienced carpenters. We don’t do flat-pack.

With over 1,000 builds completed, we’ve had plenty of time to get every detail right.

What You Get With Us

Skilled Carpenters – Teams of 2 to 3 working on site for 3 to 6 weeks
No Corners Cut – Your garden room is built properly, full stop
100mm PIR Insulation – Keeps your building warm in winter and cool in summer
Double-Glazed Windows – Secure, attractive, and energy efficient
Made for Your Space – Every building is designed to fit your garden and lifestyle
Free Consultations – We’ll visit your home and give honest advice, no hard sell
Our Own Installers – We never subcontract the build to anyone else

We cover Crawley and all the surrounding areas including Horsham, East Grinstead, Horley, Haywards Heath.

Garden Gym, Crawley

This 6m x 4m garden gym was built for a personal trainer living in Maidenbower who wanted to run small group sessions from home. The extra length gives enough room for three clients to train simultaneously, with proper spacing between stations.

We installed reinforced flooring rated for heavy equipment, full length mirrors, and a ventilation system that keeps the air fresh during intense sessions. The 100mm insulated panels mean heating costs are minimal even through the coldest months, and the double glazed doors fold back completely in summer.

The client told us the gym has transformed her business. She no longer pays rent on a commercial unit, and her clients love the personal feel of a private training space. It’s one of the larger home gyms we’ve built, and the feedback has been fantastic.

Garden Studio, Crawley

This 4m x 3m garden studio was built for a graphic designer in Pound Hill who needed a quiet, dedicated workspace away from a busy household. The compact Multi design makes the most of every square metre, with a built in desk along one wall and floor to ceiling shelving on the other.

We positioned the main window to face north for consistent, glare free natural light, which is ideal for screen based work. The studio is fully wired with Cat6 ethernet, multiple power points, and external security lighting.

Our client says the studio feels like a completely separate workspace, even though it’s just a few steps from the back door. The insulation keeps it comfortable all year, and the cedar cladding has weathered beautifully into its garden setting.

Get in Touch

Thinking about a garden room? We’re happy to help.

We build garden offices, studios, gyms, annexes, and multi-use buildings across Crawley and the surrounding areas. Our service covers Sussex, Kent, Surrey, and Sussex.

Call us: 01689 818 400
Email: info@gardenofficebuildings.co.uk
Showroom visits available Monday to Saturday by appointment

Why Customers Choose Us

We’ve been building garden rooms across Sussex for over 20 years, including in Horsham, East Grinstead, Horley, Haywards Heath

All our buildings use 100mm PIR insulated panels, which outperform standard rockwool by a wide margin

Over 55 years of combined experience in the team

We care about getting the details right

Visit our showroom to see the quality for yourself and chat about your plans

Get In Touch

About Crawley

Crawley is a large town in West Sussex, originally designated as a New Town in 1947. It’s organised into 14 distinct neighbourhoods, each with its own character, schools, and local amenities. Areas like Maidenbower, Pound Hill, and Furnace Green are popular with families and tend to have good sized gardens.

The town sits close to Gatwick Airport and has excellent rail links to London and Brighton, making it a practical base for commuters. Tilgate Park and Worth Way offer green spaces and walking routes on the doorstep. We also cover nearby Horsham, East Grinstead, Horley, and Haywards Heath.

If you’re thinking about adding a garden room to your Crawley property, we’d be happy to visit and talk it through. No pressure, just straightforward advice from a team that’s completed over 1,000 builds.

Visit Our Showroom

Our showroom in Biggin Hill is roughly 35 minutes from Crawley, heading north east through the countryside. It’s an easy drive and gives you the chance to see our garden rooms up close before making any decisions.

We have three models on display: the Midi, Maxi, and Multi. Walk around them, check the joinery, feel the insulation panels, and ask us anything you like.

“From the first phone call to the final handover, everything was brilliant. The garden room is rock solid and looks amazing. I use it as my office every day and it’s honestly the best investment I’ve made in the house. Highly recommend these guys.”

Call us on 01689 818 400 to book your showroom visit.

garden office buildings banner at showroom

Frequently Asked Questions

How much does a garden room cost in Crawley?

Garden rooms in Crawley typically cost between £15,000 and £50,000 depending on size, specification and finish. Our Midi (4m x 3m) starts from around £15,000, the Maxi (5m x 3m) from around £20,000, and our Multi (6m x 4m) from around £30,000. Every quote includes groundwork, electrics and VAT with no hidden extras. See our buildings and prices page for full details.

Do I need planning permission for a garden room in Crawley?

Most garden rooms in Crawley fall under permitted development and do not need planning permission. The building must be single storey, no taller than 2.5 metres at the eaves, and must not cover more than 50 percent of the garden. If your property is in a conservation area or is listed, additional restrictions may apply. We handle planning guidance on every project.

How long does it take to build a garden room?

Our builds typically take 3 to 6 weeks on site depending on size and complexity. A standard Midi or Maxi takes around 3 weeks, while a larger Multi or bespoke build may take up to 6 weeks. We use our own teams of experienced carpenters and never subcontract.

Can I use a garden room as a home office?

Absolutely. A garden office is one of our most popular builds. Every garden room comes with 100mm PIR insulation, double glazed windows, full electrics and internet connectivity, making it comfortable and productive all year round.

Do Garden Office Buildings install garden rooms in Crawley?

Yes, we regularly build garden rooms in Crawley and the surrounding areas including Horsham, East Grinstead, Horley, Haywards Heath. We are based in Biggin Hill, Kent, and have completed over 1,000 builds since 2004. Call us on 01689 818 400 or visit our showroom.

Helpful Resources

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Whether you need a garden office, a creative studio, a home gym, or a family space, we’ll build something that works for you. Click below for your free quote.

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