Expert Garden Room Builders in Cheltenham
Cheltenham's beautiful Regency architecture and established gardens deserve garden rooms of exceptional quality. Whether you need a sophisticated home office, a private wellness space, or a luxury annexe, LouMil creates bespoke buildings that complement Cheltenham's elegant properties.
Cheltenham is part of our local patch — our Tipton workshop is around 45 minutes drive from Cheltenham, and we offer free same-week site visits. We handle everything from design through to installation with our own team, and we install nationwide across the UK.
Our Services in Cheltenham
From home offices to luxury annexes, we build bespoke garden rooms for every purpose.
Areas We Cover in Cheltenham
We serve all areas across Cheltenham and Gloucestershire, including:
10-Year Guarantee
Full structural warranty on every build
5-Star Rated
Trusted by homeowners across Cheltenham
Fast Installation
Most builds completed in 3-5 days
Also Serving Nearby Areas
Garden Rooms in Cheltenham — FAQs
Costs, planning, timescales and coverage across Cheltenham and the West Midlands.
How much does a garden room cost in Cheltenham?
Our fully-fitted garden rooms in Cheltenham start from £9,000 inc. VAT and typically range from £18,000–£35,000 depending on size, cladding and interior finish. Every quote is fixed price and includes insulation, electrics, lighting, flooring, doors and windows — no hidden extras. We provide a free site visit and written quote within 48 hours across Cheltenham and the wider Gloucestershire.
Do I need planning permission for a garden room in Cheltenham?
Most garden rooms in Cheltenham fall under Permitted Development and do not require planning permission, provided the building is single-storey, under 2.5m high (within 2m of a boundary) and used as ancillary space — not as a separate dwelling. We handle the full planning check during your site visit and, if approval is needed, prepare and submit the application on your behalf to Cheltenham City Council or your local authority.
How long does it take to build a garden room in Cheltenham?
Once your design is signed off and the base is ready, installation in Cheltenham typically takes 3-5 days. From first enquiry to a finished, plugged-in garden room is usually 6–10 weeks — including design, manufacture in our Tipton workshop and on-site assembly by our own employed team (no subcontractors).
Which areas of Cheltenham do you cover?
We cover the whole of Cheltenham and Gloucestershire, including Cheltenham Town, Prestbury, Charlton Kings, Leckhampton, Pittville, Montpellier and surrounding villages. Our workshop is 45 minutes from Cheltenham, so we offer free same-week site visits with no travel charges within the West Midlands.
Are LouMil garden rooms suitable for year-round use?
Yes — every LouMil garden room is fully insulated to current UK building standards with 100mm PIR insulation in floors, walls and roof, double-glazed thermally-broken doors and windows, and a fitted electric heater. Our Cheltenham builds stay warm in winter and cool in summer, and come with a 10-year structural guarantee.