From £87,040
MK Professional Building Services are here to help customers who need an Extension Builder in GU51. We offer a competitive rate to complete all you...
From £87,096
Our mission is to improve your home with the care and attention it deserves. MK Professional Building Services specialises in providing high qualit...
From £86,776
P J HYDE (BUILDERS) is a trusted extension builder serving customers in GU51 and the surrounding area. Contact us to today to get a competitive quo...
From £86,624
Dynamelec Ltd is an established and experienced local extension builder in GU51. Please contact us for a free, no obligation quote and competitive ...
From £87,000
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,016
Primary Construction Ltd is an established and experienced local extension builder in GU51. Please contact us for a free, no obligation quote and c...
From £87,216
Experienced extension builder ready to quote for your work. INSEEN CONSTRUCTION LIMITED is the best extension builder in GU51. No obligation free q...
From £87,344
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,024
Better Living Builders are here to help customers who need an Extension Builder in GU51. We offer a competitive rate to complete all your extension...
From £87,056
Bailey Miller Brickwork is a family run construction company, run and managed by Stuart Callan. Based in Yateley, Hampshire, we cover all surroundi...

Building a granny annexe ranges from £86,624 (Dynamelec Ltd based in GU51) to £87,344 (K D B Plastering & Property based in GU14), 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 GU51 by posting a job with HaMuch. We will send it to extension builders in GU51 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Fleet | £41 | £270 |
| Granny Annexe near Farnborough | £41 | £273 |
| Granny Annexe near Aldershot | £41 | £275 |
| Granny Annexe near Farnham | £41 | £276 |
| Granny Annexe near Sandhurst | £41 | £283 |
| Granny Annexe near Ash Vale | £41 | £277 |
| Granny Annexe near Camberley | £41 | £283 |
| Granny Annexe near Wokingham | £41 | £280 |
| Granny Annexe near Bracknell | £41 | £286 |
| Granny Annexe near Bracknell Forest | £41 | £287 |
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 - £17,519

Two storey extension - £88,029

Build a timber frame extension - £26,019

Build a swimming pool - £81,019

Single storey extension - £55,384

Side return extension - £41,716

Install an RSJ - £2,219

Outbuilding - £10,019

Build a Mansard loft conversion - £52,019

Loft conversion - £33,930

Build a kitchen extension - £42,019

Hip to gable loft conversion - £42,019

Granny annexe - £87,019

Garden office - £10,019

Convert a Garage - £16,019

Garage - £18,519

Build a flat roof extension - £22,019

Build a dormer loft conversion - £42,019

Concrete foundations - £6,269

Convert a bungalow loft - £29,019

Convert a basement - £37,716