Trusted and professional extension builder in SG8. Experienced in all extension buildering work and keeping within budget and on quote. Rescapes Co...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,304
Relax... you have found a reliable extension builder in SG8. Refresh Renovations - Cambridgeshire - Simon is a friendly and reliable company based ...

Building a granny annexe ranges from £87,072 (ECO DESIGN & BUILD (UK) LTD based in SG8) to £87,464 (Rescapes Construction Ltd based in SG8), 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 SG8 by posting a job with HaMuch. We will send it to extension builders in SG8 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near South Cambridgeshire | £50 | £315 |
| Granny Annexe near Letchworth | £44 | £283 |
| Granny Annexe near Biggleswade | £41 | £268 |
| Granny Annexe near North Hertfordshire | £44 | £283 |
| Granny Annexe near Cambridge | £41 | £275 |
| Granny Annexe near East Hertfordshire | £44 | £289 |
| Granny Annexe near Stevenage | £44 | £282 |
| Granny Annexe near Hitchin | £43 | £283 |
| Granny Annexe near St Neots | £51 | £318 |
| Granny Annexe near Bishop's Stortford | £42 | £264 |
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 - £17,780

Two storey extension - £88,420

Build a timber frame extension - £26,280

Build a swimming pool - £81,280

Single storey extension - £60,600

Side return extension - £44,650

Install an RSJ - £2,480

Outbuilding - £10,280

Build a Mansard loft conversion - £52,280

Loft conversion - £36,375

Build a kitchen extension - £42,280

Hip to gable loft conversion - £42,280

Granny annexe - £87,280

Garden office - £10,280

Convert a Garage - £16,280

Garage - £18,780

Build a flat roof extension - £22,280

Build a dormer loft conversion - £42,280

Concrete foundations - £6,530

Convert a bungalow loft - £29,280

Convert a basement - £40,650