From £87,104
Linea Home Design Ltd is an established and experienced local extension builder in RH9. Please contact us for a free, no obligation quote and compe...
From £87,408
Linea Home Design LTD is a Surrey based company with extensive knowledge and experience in design and refurbishments. Specialising in bathrooms, we...
From £87,368
Relax... you have found a reliable extension builder in RH9. WMT Building Services Ltd is a friendly and reliable company based in RH9 who consider...
From £86,608
We are a building and landscaping business, based in Oxted, Surrey. We cover all surrounding areas, such as Limpsfield, Woldingham, Warlingham, Wes...
From £87,344
Urban Space Projects is a trusted extension builder serving customers in RH9 and the surrounding area. Contact us to today to get a competitive quo...
From £87,224
Need to find an Extension Builder near you for all your extension buildering work?
S C H BUILDING SERVICES provides a local, trusted extens...
From £87,256
Need to find an Extension Builder near you for all your extension buildering work?
Collier Roofing provides a local, trusted extension buil...
From £87,384
Lands Building is an established extension buildering business in RH9. We come highly recommended and provide competitive quotes for your work.
...From £87,104
Need to find an Extension Builder near you for all your extension buildering work?
V & B FACILITIES & BUILDING provides a local, trusted ex...
From £86,984
Rial Build is an established and experienced local extension builder in RH9. Please contact us for a free, no obligation quote and competitive rate...

Building a granny annexe ranges from £86,608 (CAMERON BUILDING AND LANDSCAPING SERVICES LTD based in rh8) to £87,408 (Linea Home Design Ltd based in CR3), 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 RH9 by posting a job with HaMuch. We will send it to extension builders in RH9 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Caterham | £43 | £272 |
| Granny Annexe near Redhill | £41 | £269 |
| Granny Annexe near Reigate | £40 | £270 |
| Granny Annexe near Horley | £38 | £258 |
| Granny Annexe near Reigate & Banstead | £41 | £271 |
| Granny Annexe near Tadworth | £41 | £271 |
| Granny Annexe near East Grinstead | £37 | £259 |
| Granny Annexe near Crawley | £38 | £255 |
| Granny Annexe near Croydon | £43 | £267 |
| Granny Annexe near Epsom | £43 | £274 |
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 - £17,678

Two storey extension - £88,268

Build a timber frame extension - £26,178

Build a swimming pool - £81,178

Single storey extension - £58,568

Side return extension - £43,507

Install an RSJ - £2,378

Outbuilding - £10,178

Build a Mansard loft conversion - £52,178

Loft conversion - £35,423

Build a kitchen extension - £42,178

Hip to gable loft conversion - £42,178

Granny annexe - £87,178

Garden office - £10,178

Convert a Garage - £16,178

Garage - £18,678

Build a flat roof extension - £22,178

Build a dormer loft conversion - £42,178

Concrete foundations - £6,428

Convert a bungalow loft - £29,178

Convert a basement - £39,507