Garden Rooms & Summer Houses in Surrey
Design and build garden rooms, summer houses and annexes, GK Landscapes manages every stage from the base to the finished structure.
A Garden Room Built to Be Used Year-Round
A garden room is one of the more involved projects you can take on, and one of the best returns on investment in a Surrey property. Whether you want a home office, a gym, a hobby room, a treatment room or somewhere to sit out year-round, getting the build right from the ground up matters. The base and structure need to be done properly or you end up with damp, condensation and structural problems that are expensive to fix.
GK Landscapes manages the complete project: site assessment, groundworks and base (concrete or paved), structure build, insulation, cladding, roofing, windows and doors, electrical connections (via our trusted electricians), and final decoration. Patrick is on site throughout.
Planning Permission
Most garden rooms under 2.5m to the eaves and 4m ridge height can be built under Permitted Development, without planning permission. Rules around boundary proximity (must be at least 2m from the boundary), maximum footprint (no more than 50% of the original garden area), and usage (must not be used as a main residence) apply. Patrick covers these at every site visit.
- Free no-obligation quote, site visit always included
- Clear written price before any work starts
- Patrick Greenwood personally on site
- 9.9/10 on Checkatrade from 376 verified reviews
- 10/10 for communication
- No subcontractors on standard jobs
- No deposit required on most jobs
Discuss Your Garden Room
Free site visit. Written price. No deposit.
What's Included
Patrick checks ground conditions, boundary distances, power access and planning requirements.
Concrete slab or paved base installed level and drained correctly. The most important phase.
Timber frame constructed on the base. Roof structure built and waterproofed.
Wall, floor and roof insulation installed. External cladding and roofing membrane fitted.
Double-glazed windows and doors fitted. UPVC, timber or aluminium frames to specification.
Electrical installation by trusted qualified electricians. Internal lining, decoration and fitting out.
| Option | Typical Price |
|---|---|
| Small garden room (up to 12m²) | £12,000–£18,000 |
| Medium garden room (12–20m²) | £18,000–£28,000 |
| Large garden room / annexe (20m²+) | £28,000–£50,000+ |
Garden rooms are a specialist service. Not many landscaping contractors in Surrey take these on. If this is what you need, call Patrick on 07815 949035 and he will tell you straight whether the job is right for GK Landscapes.
Frequently Asked Questions
Most garden rooms built under Permitted Development rules do not require planning permission. The key requirements are: under 2.5m to the eaves, within the original garden boundary (not on land bought since the house was built), at least 2m from the property boundary, and not covering more than 50% of the original garden. Patrick checks all of this at the site visit.
A typical garden room project takes 4–8 weeks from groundworks to handover. The base takes 3–5 days to cure before the structure can go up. The build itself takes 1–3 weeks depending on size and specification. Electrical fit-out adds 1–2 days at the end.
GK Landscapes builds garden rooms to a standard that makes them genuinely usable in winter, insulated walls, floor and roof, double-glazed windows and doors. We use 65–100mm insulated panels in walls and ceilings. Patrick discusses the specification and any upgrade options at the site visit.
Under Permitted Development rules, a garden room cannot be used as a separate dwelling or let independently. For an annexe intended as accommodation (with sleeping, cooking and bathroom facilities), a planning application is likely to be required. Patrick discusses use requirements honestly at the site visit.
Garden rooms typically add 5–10% to property value in Surrey and often pay for themselves in avoided office rental or commuting costs within 2–3 years. They are one of the highest-return home improvement investments available.