Drawn for the plot, not picked from a catalogue
A Victorian townhouse garden in Haywards Heath, a long country plot outside Cuckfield and a new-build garden in Burgess Hill all want different things: a different footprint, a different roof line, a different relationship to the house.
Every room we build is drawn for its garden and hand-built by our own joiners. Nothing is dropped onto a lawn and left looking like an afterthought - the groundworks, terrace, steps and planting around it are designed at the same time.
What a Sussex garden room costs
A fully insulated, fully finished room typically usually starts from about £25,000 for a compact single-room build and rises with size, glazing and specification. Groundworks, insulation, certified electrics, heating, flooring and decoration are all included. These are indicative guide ranges based on completed projects, not a quotation; your figure is confirmed after a site visit.
Sussex plots add their own variables: sloping ground below the Downs, heavy Weald clay, tight side access in older town centres. We survey before quoting so the number you get is the number you pay.
- Compact office or studio, 12-16m² - from around £25,000
- Family room or gym with a terrace, 20-25m² - typically £35,000 to £50,000
- Larger multi-room buildings with sauna, shower or kitchenette - quoted individually
Planning permission in Sussex
Most garden rooms fall under permitted development. Sussex has a large number of conservation areas and a substantial slice of the High Weald and South Downs designated landscape, which are the usual exceptions along with listed buildings.
We check the designations on your plot before quoting and handle the application if one is needed.
Where we build in Sussex
Our workshop and yard are in Mid Sussex, which puts the whole county comfortably inside our normal working radius.
- Haywards Heath
- Cuckfield
- Lindfield
- Burgess Hill
- Horsham
- Crawley
- East Grinstead
- Hurstpierpoint
- Ardingly
- Balcombe
Sussex garden room questions
- Do you build garden rooms across the whole of Sussex?
- Yes. Our yard is in Mid Sussex, so Haywards Heath, Cuckfield, Lindfield, Burgess Hill, Horsham, Crawley, East Grinstead and the surrounding villages are all inside our usual radius, and we travel further across East and West Sussex for larger builds.
- How much does a garden room cost in Sussex?
- From around £25,000 for a compact insulated single-room build, fully finished. Larger rooms with more glazing, a terrace or a shower room typically run £35,000 to £50,000.
- Will I need planning permission?
- Usually not - most rooms are permitted development if they are single storey, under 2.5m high within 2m of a boundary, cover no more than half the garden and are not a separate dwelling. Conservation areas, the High Weald and South Downs AONBs and listed properties are the exceptions we check for.
- How long from first call to finished room?
- Roughly six to ten weeks of design and lead time, then two to four weeks on site.
- Can it be used as an office all year?
- Yes. Every room is insulated as a continuous envelope with certified electrics and heating, so it holds temperature through winter rather than being a summer building.
What our clients say
Reviews from homeowners across Sussex, Surrey and Kent.
"Best in class. None of my specific requests were any trouble at all. The team were polite, professional, smart, and accommodating throughout. A perfect example of how professional tradespeople should be."
"Alistair understood exactly how we wanted to use the garden. The finished space feels like a private retreat and we use it every day."
"Our garden office has completely transformed how we work from home. The quality is outstanding and the process was seamless."
Areas we cover
Designed and built by our own team across Sussex, Surrey and Kent.
West Sussex
East Sussex
Surrey
Not on the list? See the full coverage map, or find landscapers near you town by town - we travel further for larger projects.
Read next
- The full garden room collection and build process
- How an insulated garden room is actually built
- Garden rooms in West Sussex
- Garden offices: spec, costs and planning
Thinking about a garden room in Sussex?
Download the brochure for sizes, layouts and finishes, or call and we will tell you honestly whether your plot suits one.