5 garden room builders in Sussex
Covering East and West Sussex. These are the garden room firms we have checked so far, with the facts each one publishes on its own website.
Listed in alphabetical order – not ranked. Every fact comes from the firm's own website, checked 20 October 2026. We haven't used these firms ourselves, and none of them has paid to be here. Where a firm doesn't publish something, we say “not stated”.
Bakers Garden Buildings
- Based in
- Haywards Heath (RH17), with a show centre of 14 buildings
- Area covered
- Across Sussex, including Brighton & Hove, Crawley, Worthing, Eastbourne, Lewes and Chichester.
- Prices
- not stated
- Insulation
- Residential-grade insulation for year-round use (per their site)
- Planning help
- Publishes a planning permission guide.
- Guarantee
- 10-year warranty
Createspace Garden Rooms
- Based in
- Brighton
- Area covered
- Brighton and homes across Sussex.
- Prices
- From £15,000 (final price after a free site survey)
- Insulation
- Fully insulated, year-round rooms (per their site)
- Planning help
- Publishes planning and building regulations guidance for Brighton and Sussex.
- Guarantee
- not stated
- Also says
- Fully managed service.
Miniature Manors
- Based in
- Haywards Heath (RH16)
- Area covered
- East and West Sussex, Surrey, Kent and South London (says it only covers Sussex, Surrey and surrounding areas).
- Prices
- From £15,000
- Insulation
- Insulated for year-round use
- Planning help
- Annexe builds are project managed from the planning application onwards.
- Guarantee
- 10-year warranty against build defects
- Also says
- Building custom garden buildings since 2008.
Sussex Crafted
- Based in
- Brighton
- Area covered
- West and East Sussex, and Surrey.
- Prices
- not stated
- Insulation
- Fully insulated (per their site)
- Planning help
- not stated
- Guarantee
- Hands over glazing guarantees and electrical certificates at completion
- Also says
- Family business (father and son); publishes guide prices for several room types.
The Garden Room Business
- Based in
- Eastbourne
- Area covered
- not stated
- Prices
- not stated
- Insulation
- Fully insulated for year-round use
- Planning help
- not stated
- Guarantee
- not stated
- Also says
- Family-run; garden offices, gyms, playrooms and glamping pods.
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Before you commit, read our planning permission guide and kit cabin or made-to-measure garden room? Run a builder? Tell us if anything here is out of date.