Garden Annexes in Swindon
Bespoke insulated garden rooms, offices & studios. Free surveys, fixed written quotes, tidy workmanship.
Swindon Garden Rooms builds garden annexes across Swindon and Wiltshire — self-contained buildings with sleeping space, a bathroom and a kitchenette. Families come to annexes from every direction: an ageing parent who needs closeness without lost independence, a twenty-something saving for a deposit, or guest space that doesn't disrupt the house.
An annexe is the most regulated thing you can build in a garden, and the honest conversation about planning happens at the start with us, not after the slab is down.
What our annexes include
Shower room
Full shower, WC and basin connected to mains drainage — designed for daily use, not caravan compromises.
Kitchenette
Fitted units, hob, fridge and sink — genuinely liveable, not token.
Sleeping & living space
Layouts from open-plan studios to separate bedroom designs in larger footprints.
Heating & hot water
Electric heating and hot water systems sized for full-time occupation, with insulation to match.
The planning position — honestly
Here's the part other builders mumble about: permitted development covers *incidental* garden buildings, and a self-contained annexe someone lives in usually is not incidental. Annexes for family members can often get consent — councils are generally supportive of 'granny annexe' applications where the annexe stays tied to the main house — but it is an application, not a loophole.
We'll tell you at the design visit which side of the line your plans sit on, and handle the application with you where one's needed. What we won't do is build first and hope.
Garden annexe cost in Swindon
| Annexe | Spec | Guide price |
|---|---|---|
| Studio annexe 5m × 4m | Open-plan + shower room + kitchenette | £38,000 – £50,000 |
| 1-bed annexe 6m × 4m+ | Separate bedroom, full bathroom, kitchen | £48,000 – £65,000 |
Including drainage connections, heating and full internal fit-out. Compare with £150k+ for a comparable extension.
Frequently asked questions
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