Bespoke Garden Rooms

Turn Wasted Garden Into Living Space Across Hertfordshire

Bespoke insulated garden rooms hand built across Hertfordshire. Offices, gyms, studios, games rooms and guest rooms — designed around your garden, finished and ready to use on handover.

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07587 763463
  • Trusted local builders
  • Fixed price at design stage
  • Professional in-person survey
  • Award-winning craftsmanship
Year-round
Not just summer months
  • What is a garden room?

Wasted garden in Living space out

A garden room is a permanent, insulated structure built in your garden and finished to the same standard as the inside of your home. Insulated floor, walls and roof. Full electrics and heating. Plastered, decorated and floored.

That is the difference between a garden room and a summer house or a shed. An insulated garden room is a room you use in February, work in every day, and heat like any other part of the house.
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Specification

What's included as standard.

You take handover of a room you can use that day, not a structure waiting on another trade.
  • Insulated floor, walls and roof — multi-layer, built for year-round use
  • Heating designed in from the start, not added afterwards
  • Plastered, decorated and floored throughout
  • Hard-wired data points where you need them
  • Groundwork and foundations appropriate to your plot
  • Full electrics: consumer unit, sockets, internal and external lighting
  • Double-glazed doors and windows
  • Cedar or composite cladding, your choice of finish
  • Plumbing, WC and shower room available
  • Landscaping around the building through Gecko Greenscapes
  • What We Build

Wasted space, turned into whichever room you've run out of

Garden Offices

Insulated, wired and quiet enough for full-time work. Hard-wired data points and heating designed in so it works through winter.

Garden office, St Albans — 5m × 3m

Rooms with Storage

A finished room plus a separate side store for tools and bikes. One building, two jobs, no extra shed.
Garden room + store, Welwyn — 6m × 3m

Garden Gyms

Reinforced flooring, proper ventilation, mirrors and lighting to your spec. Sized around the rig, bench and the room to use them.
GARDEN GYM, HARPENDEN — 4M × 4M, COMPOSITE CLAD

Garden Studios

Music, art or making. Light, acoustics and power designed around the work rather than fitted afterwards.
Garden studio, Radlett — 4m × 4m,

Games Rooms & Bars

Wired for screens and sound, with soundproofing options and a handmade bar where you want one.
Games room, Watford — 7m × 4m, composite clad

Guest Rooms

Plumbing, drainage and a WC or shower room designed in from the start. A genuine guest space.
Guest room, Berkhamsted — 5m × 4m
  • Areas we cover

Turning wasted gardens into living space across Hertfordshire and surrounding areas

We design and build across the county, including St Albans, Harpenden, Watford, Hemel Hempstead, Stevenage, Hitchin, Welwyn Garden City, Berkhamsted, Radlett, Bishop’s Stortford, Hertford and Ware.

If you are just outside the county, get in touch anyway and we will tell you honestly whether we can reach you.

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St Albans
Harpenden
Watford
Hemel Hempstead
Stevenage
Hitchin
Welwyn Garden City
Berkhamsted
Radlett
Bishop's Stortford
Hertford
Ware
  • Common questions

Frequently Asked Questions

Usually not. Most garden rooms fall under permitted development if they sit under 2.5m high within two metres of a boundary, cover no more than half the garden, and are not used as separate living accommodation. We check your specific plot when we visit, and we will tell you if yours needs an application.

Yes, provided it is properly insulated. Multi-layer insulation in the floor, walls and roof, with heating designed in from the start, is what makes a garden room usable all year. It is the single biggest difference between a garden room and a summer house.

It depends on size, specification and the groundwork your plot needs, so there is no single honest number. We give you a clear, fixed price at design stage, before you commit to anything.

Yes. Plumbing and drainage are designed in from the start rather than added later. We survey the drainage before we design, so you know it works before you commit.

That is what the site visit is for. We measure, look at access and sightlines, and design something proportionate — and Gecko Greenscapes can rework the planting around it so the garden still feels like a garden.

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Tell us what you'd use it for

Send us the space and the idea. We’ll come and look, and come back with what fits.

Hand built across Hertfordshire. Gecko Greenscapes for landscaping.

Designed & Developed by Ad-tivity