From £87,256
Back to Front Exterior Design Consultancy is a trusted extension builder serving customers in GU9 and the surrounding area. Contact us to today to ...
From £87,200
K Construction is a trusted extension builder serving customers in GU9 and the surrounding area. Contact us to today to get a competitive quote for...
From £87,328
Chapman Property Services is an established and experienced local extension builder in GU9. Please contact us for a free, no obligation quote and c...
From £87,032
Mitchells of Farnham is an established extension buildering business in GU9. We come highly recommended and provide competitive quotes for your wor...
From £87,456
MARSHELS ROOFING CONTRCTS LTD is a trusted extension builder serving customers in GU9 and the surrounding area. Contact us to today to get a compet...
From £87,152
PRESTIGE BUILDCARE LTD is a trusted extension builder serving customers in GU9 and the surrounding area. Contact us to today to get a competitive q...
From £86,928
COOKIE CONSTRUCTION is an established and experienced local extension builder in GU9. Please contact us for a free, no obligation quote and competi...
From £87,128
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,920
MAP Building is an established extension buildering business in GU9. We come highly recommended and provide competitive quotes for your work.
From £87,024
Modern life. Modern interiors.KoolCreations is a Surrey based bespoke interior creation company specialising in creating bespoke interiors using al...

Building a granny annexe ranges from £86,920 (MAP Building based in GU11) to £87,456 (MARSHELS ROOFING CONTRCTS LTD based in GU10), 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 GU9 by posting a job with HaMuch. We will send it to extension builders in GU9 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Farnham | £41 | £276 |
| Granny Annexe near Aldershot | £41 | £275 |
| Granny Annexe near Fleet | £41 | £270 |
| Granny Annexe near Ash Vale | £41 | £277 |
| Granny Annexe near Farnborough | £41 | £273 |
| Granny Annexe near Waverley | £68 | £313 |
| Granny Annexe near Camberley | £41 | £283 |
| Granny Annexe near Sandhurst | £41 | £283 |
| Granny Annexe near Guildford | £53 | £298 |
| Granny Annexe near Woking | £43 | £277 |
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 - £17,642

Two storey extension - £88,214

Build a timber frame extension - £26,142

Build a swimming pool - £81,142

Single storey extension - £57,848

Side return extension - £43,102

Install an RSJ - £2,342

Outbuilding - £10,142

Build a Mansard loft conversion - £52,142

Loft conversion - £35,085

Build a kitchen extension - £42,142

Hip to gable loft conversion - £42,142

Granny annexe - £87,142

Garden office - £10,142

Convert a Garage - £16,142

Garage - £18,642

Build a flat roof extension - £22,142

Build a dormer loft conversion - £42,142

Concrete foundations - £6,392

Convert a bungalow loft - £29,142

Convert a basement - £39,102