Relax... you have found a reliable extension builder in SN10. Lee Jackson Roofing Ltd is a friendly and reliable company based in SN10 who consider...
From £86,896
Our building services company TG Roofing and Construction was established over 10 years ago and have been helping customers throughout Wiltshire by...
From £87,152
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Building a granny annexe ranges from £86,752 (Lee Jackson Roofing Ltd based in SN10) to £87,152 (Ayelle Construction Ltd based in SN10), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in SN10 by posting a job with HaMuch. We will send it to extension builders in SN10 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Devizes | £32 | £242 |
| Granny Annexe near North Wiltshire | £32 | £242 |
| Granny Annexe near West Wiltshire | £32 | £242 |
| Granny Annexe near Calne | £29 | £225 |
| Granny Annexe near Trowbridge | £34 | £266 |
| Granny Annexe near Chippenham | £34 | £258 |
| Granny Annexe near Frome | £33 | £263 |
| Granny Annexe near Swindon | £31 | £238 |
| Granny Annexe near Thamesdown | £31 | £239 |
| Granny Annexe near Stratton St Margaret | £32 | £238 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,433

Two storey extension - £87,900

Build a timber frame extension - £25,933

Build a swimming pool - £80,933

Single storey extension - £53,667

Side return extension - £40,750

Install an RSJ - £2,133

Outbuilding - £9,933

Build a Mansard loft conversion - £51,933

Loft conversion - £33,125

Build a kitchen extension - £41,933

Hip to gable loft conversion - £41,933

Granny annexe - £86,933

Garden office - £9,933

Convert a Garage - £15,933

Garage - £18,433

Build a flat roof extension - £21,933

Build a dormer loft conversion - £41,933

Concrete foundations - £6,183

Convert a bungalow loft - £28,933

Convert a basement - £36,750