Experienced extension builder ready to quote for your work. Avalon Building Services Ltd is the best extension builder in RG21. No obligation free ...
D W BUILDERS is a trusted extension builder serving customers in RG21 and the surrounding area. Contact us to today to get a competitive quote for ...
J & M Building Services are here to help customers who need an Extension Builder in RG21. We offer a competitive rate to complete all your extensio...
Relax... you have found a reliable extension builder in RG21. Parkhouse Roofing is a friendly and reliable company based in RG21 who consider no jo...
Experienced extension builder ready to quote for your work. S & M Builders is the best extension builder in RG21. No obligation free quotes and man...
John McKinney Building is an established extension buildering business in RG21. We come highly recommended and provide competitive quotes for your ...
Relax... you have found a reliable extension builder in RG21. CHAMPION BUILD LTD is a friendly and reliable company based in RG21 who consider no j...
Trusted and professional extension builder in RG21. Experienced in all extension buildering work and keeping within budget and on quote. OAK BUILDI...
Tony Gawn
Experienced extension builder ready to quote for your work. D L P ASSOCIATES (BUILDINGS) is the best extension builder in RG21. No obligation free ...
From £87,264
Need an Extension Builder in RG21? BUILD IT DEVELOPMENT LIMITED has been helping local clients (20 mile radius) with their extension buildering job...

Building a granny annexe ranges from £86,936 (OAK BUILDING MANAGEMENT LTD based in RG22) to £87,688 (D L P ASSOCIATES (BUILDINGS) based in RG27), 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 RG21 by posting a job with HaMuch. We will send it to extension builders in RG21 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Basingstoke | £39 | £274 |
| Granny Annexe near Basingstoke & Deane | £39 | £273 |
| Granny Annexe near Fleet | £41 | £270 |
| Granny Annexe near Thatcham | £38 | £266 |
| Granny Annexe near Farnham | £41 | £276 |
| Granny Annexe near Newbury | £37 | £262 |
| Granny Annexe near Reading | £42 | £266 |
| Granny Annexe near Sandhurst | £41 | £283 |
| Granny Annexe near Aldershot | £41 | £275 |
| Granny Annexe near Farnborough | £41 | £272 |
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 - £17,706

Two storey extension - £88,308

Build a timber frame extension - £26,206

Build a swimming pool - £81,206

Single storey extension - £59,112

Side return extension - £43,813

Install an RSJ - £2,406

Outbuilding - £10,206

Build a Mansard loft conversion - £52,206

Loft conversion - £35,678

Build a kitchen extension - £42,206

Hip to gable loft conversion - £42,206

Granny annexe - £87,206

Garden office - £10,206

Convert a Garage - £16,206

Garage - £18,706

Build a flat roof extension - £22,206

Build a dormer loft conversion - £42,206

Concrete foundations - £6,456

Convert a bungalow loft - £29,206

Convert a basement - £39,813