Urban Space
Up to 30m2 from £23,000Extended living area up to 30m² to be used as a gym, office, bar, teen hangout or however you choose. Prices starting from £23,000.
Luxury Garden Rooms Built for Life
Discover a smarter, faster, and more sustainable way to extend your home.
A look at our range Our Bespoke Garden Rooms
At Urban Spaces, we specialise in creating high-quality, sustainable, and beautifully designed modular garden rooms and annexes.
Urban Space Plus
Larger than 30m2 from £37,500For a larger living area (over 30m²). Similar to an Urban Space but gives you the extra space for additional uses - such as a bathroom, kitchen, sauna or store room. This space could also be designed as a private self-contained living space or annexe for a loved one. Prices start from £37,500, including planning and building regulations application fees and services.
Luxury Garden Rooms Built for Life
Discover a smarter, faster, and more sustainable way to extend your home. At Urban Spaces, we design and build luxury garden rooms that are stylish, functional, and built to last — with insulation and modular design at the heart of every structure.
Based in Hertfordshire, we serve clients across the UK, helping homeowners transform unused garden space into stunning new living areas with garden offices, gyms, guest suites and more.
Luxury Garden Rooms
Whether you need space for your growing family, a peaceful home office, or a gym room our bespoke service will give you what you need.
Insulated Garden Rooms
Unlike summerhouses or sheds, an insulated garden room is a fully sealed, high-performance space designed for daily use, 365 days a year
We use SIPs (Structural Insulated Panels) — industry-leading materials that ensure thermal efficiency and long-lasting strength. Combined with:
- Double-glazed windows and doors
- Full heating, ventilation, and air-conditioning options
- Built-in moisture control to prevent damp and mould
- You’ll enjoy a space that’s warm in winter, cool in summer, and always comfortable to work or relax in.
Modular Garden Rooms
A modular garden room is built using pre-manufactured sections — or modules — that are assembled on-site by our expert team. Each panel (walls, floors, roof) is custom-made to fit your exact design, allowing for precise quality control and ultra-efficient installation.
Benefits of a modular garden room:
- Bespoke design, tailored to your lifestyle
- Built offsite = faster, cleaner installation
- Easier to position within your garden
- Often falls under permitted development (no planning permission needed)
- Adaptable for a wide range of uses — home gym, office, art studio, teen hangout, or rental unit
Your modular garden room arrives ready to install and can typically be completed within 2–3 weeks — even less for smaller builds
Corner Garden Rooms
Because we create bespoke designs for every garden room or annexe we build, we are able to ensure that we make the most efficient use of space in your garden. This is especially the case when working in tight areas and corner plots – even where the corner is offset and not at right angles. We have designed beautiful extended living areas to suit the available space and surroundings. This may include longer, narrower garden rooms or L-shaped structures, as well as fitting doors, windows and glass roof lights to maximise the amount of natural light. Please get in touch and our design team will be pleased to discuss all the options with you.
Small Garden Rooms
As with Corner Garden Rooms we are experienced in working in tight places, whether it is limited by fence borders, trees or other obstacles. The advantage of modular garden rooms is that the various sections can be pre-manufactured offsite, brought onto site through narrow passages (or even through a home in the case of town houses) and then installed within the narrow space. Our design team will be happy to talk you through all the available options for your garden room.
Why Choose a Modern Garden Room?
Whether you need space for your growing family, a peaceful home office, or a gym room our bespoke service will give you what you need.
Common Uses for Garden Rooms
Our modern garden rooms are incredibly versatile and completely bespoke. Popular uses include:
- Home office or studio
- Garden gym or yoga retreat
- Guest room or AirBnB annexe
- Teen hangout space
- Art, music or hobby studio
- Private annexe for elderly relatives – view our dedicated annexes page
- Garden bar, sauna, or therapy room
Whatever your vision, we’ll help bring it to life.
Planning, Cost & Build Times of Garden Rooms
- Planning Permission? Often not required — we’ll advise and manage this for you
- Cost? Starts from £23,000 incl. VAT — with full quote in just 2 working days
- Build Time? From 2–3 weeks depending on design complexity
- Disruption? Minimal – no excavators, no concrete, and no stress
- Warranty? Up to 30 years on structure, roof and foundations
We can also provide landscaping to ensure your new garden room blends perfectly into its surroundings.
Why Urban Spaces?
- Specialists in modern, insulated and modular garden rooms
- Complete end-to-end service — design, planning, build & landscaping
- Bespoke design every time — no off-the-shelf templates
- Outstanding build quality & 5-star customer service
- Nationwide delivery & installation from our Hertfordshire base
- Up to 30-year structural warranty
FAQs
A garden room is a self-contained, insulated building installed in your garden, separate from your main home. Designed for year-round use, garden rooms provide a flexible and comfortable space that can serve a variety of purposes — from a home office or studio to a gym, guest room, or hobby space. Unlike sheds or summerhouses, garden rooms are built to a high standard and can include full decoration, electrics, plumbing, heating and ventilation.
A garden room is a fully insulated, professionally built structure designed for year-round use. Think of it as a proper extension of your home — with solid walls, heating and electrics, double glazing, and a high-quality finish inside and out. You can use it as a home office, gym, studio, or just a relaxing retreat — and it’ll be warm, dry, and comfortable whatever the weather.
A summer house is more like a fair-weather space. It may look pretty with big windows and doors, but it’s usually not insulated or built to the same standard. That means it’s ideal for occasional use in spring and summer, but not great in the colder months.
A shed is typically a storage space — built for keeping tools, bikes, or garden equipment safe and dry. It’s not made for living or working in, and usually lacks insulation, proper flooring, or windows. We are often asked by our clients to include a storage room in the design of our garden rooms.
If you can dream it, we can build it! We will work with you to help bring your ideas to life. Typical uses for a garden room include office, gym or kids/teens hang-out and play area. Garden rooms (or annexes) can also be designed as a private self-contained living space for a loved one, including a kitchen, bedroom and bathroom. Additional uses for a garden room could include a bar, sauna, art/hobby studio or music studio (with specialist soundproofing).
As a general rule garden rooms do not require planning permission. Certain factors may impact this, such as the size (both the footprint square footage and height), intended use of the building, proximity to boundaries, whether you live in a conservation area and if your house is a listed building. We will advise on the planning requirement for your garden room project and will manage the full end to end process on your behalf – including all the architectural drawings, planning submission and liaising with local authorities. We have an excellent success rate with planning submissions – for further information, please read our blog on garden room planning permission.
We can complete a small garden room, with no bathroom, in as little as 2 to 3 weeks. This includes building the foundations (we use ground screws, not concrete), walls and roof, installing the cladding and fully decorating internally, making the space completely ready for use. More complex, larger builds with bathrooms will take a little longer. This time also excludes any planning permission requirements (see above).
We will keep any disruption to you and your household to an absolute minimum. Firstly, we complete our builds in a very quick timescale – in as little as two weeks. Also, since we use large steel ground screws for the foundations, as opposed to cement, we do not need to get a mechanical excavator in to dig up your garden. This has the added benefit to those who live in houses with minimal or no side access to the rear garden – such as town houses.
All the garden rooms we build are completely bespoke – designed exclusively around your requirements. The size and complexity of the design will affect the overall cost, but our garden rooms start at £23,000 (incl. VAT). If you complete the online enquiry, giving us as much information as possible, we will aim to provide you with a quote within 2 working days.
Most definitely. With people looking to maximise the available space in a home, the extended living area that a high-quality garden room brings can add between 15 and 20% to the value of a property in the UK. It also attracts more buyers when on the market. As such, a garden room offers a very good return on the investment.
If you only have vague plans at this stage of what you want for your garden room, a great place to start is our online enquiry form which will guide you through a thought process as to what you might want. We will then discuss these plans further with you and help you formulate a full design.
If you already have firm ideas on what you are looking for, that’s great. Get in touch with us as early as possible as we will produce all the designs and architectural plans for you for free – possibly saving you thousands of pounds.
Yes, we do. We have a team of expert landscapers and designers who cover everything from patios and decking to planting. This will completely transform the look of your outdoor space and ensures that your new garden room will be sitting proud in its new surroundings.
Most insurance companies will add a garden room to their standard buildings insurance, so please check your with insurer.
Urban Spaces are proud to offer an unparalleled 30-year warranty on the structural framework, synthetic rubber roof and the ground screws used for the foundations. We also offer a 12-month warranty on any electrics and plumbing installed. This excludes any fixtures and fittings which are covered by the relevant manufacturer’s warranties.
Please contact us for further details.
Ready to Get Started?
Whether you're just exploring ideas or ready to build, we’re here to help. Use our online enquiry form to get started, or contact us directly for a free consultation and quote.
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