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Experienced extension builder ready to quote for your work. ADW Roofing Services is the best extension builder in Guildford. No obligation free quo...
Ayling & Sons Roofing Ltd is an established and experienced local extension builder in Guildford. Please contact us for a free, no obligation quote...
Need to find an Extension Builder near you for all your extension buildering work?
Chim Me Sweep Chim Me Build provides a local, trusted ex...
Relax... you have found a reliable extension builder in Guildford. DILCONSI CONSTRUCTION is a friendly and reliable company based in Guildford who ...
Holt Builders Ltd are here to help customers who need an Extension Builder in Guildford. We offer a competitive rate to complete all your extension...
Experienced extension builder ready to quote for your work. Betsworth Developments is the best extension builder in Guildford. No obligation free q...
Need to find an Extension Builder near you for all your extension buildering work?
MPE Brickwork provides a local, trusted extension builde...
The Roof Doctor is an established and experienced local extension builder in Guildford. Please contact us for a free, no obligation quote and compe...
M B Building & Construction Ltd is a trusted extension builder serving customers in Guildford and the surrounding area. Contact us to today to get ...
ADO Builders is a trusted extension builder serving customers in Guildford and the surrounding area. Contact us to today to get a competitive quote...

Building a granny annexe ranges from £86,928 (Holt Builders Ltd based in GU12) to £87,400 (The Roof Doctor based in GU12), 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 Guildford by posting a job with HaMuch. We will send it to extension builders in Guildford who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Guildford | £53 | £298 |
| Granny Annexe near Woking | £43 | £277 |
| Granny Annexe near Ash Vale | £41 | £277 |
| Granny Annexe near Waverley | £68 | £313 |
| Granny Annexe near Aldershot | £41 | £275 |
| Granny Annexe near Great Bookham | £42 | £281 |
| Granny Annexe near Farnborough | £41 | £272 |
| Granny Annexe near New Haw | £43 | £273 |
| Granny Annexe near Farnham | £41 | £276 |
| Granny Annexe near Camberley | £40 | £268 |
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 - £17,630

Two storey extension - £88,194

Build a timber frame extension - £26,130

Build a swimming pool - £81,130

Single storey extension - £57,592

Side return extension - £42,958

Install an RSJ - £2,330

Outbuilding - £10,130

Build a Mansard loft conversion - £52,130

Loft conversion - £34,965

Build a kitchen extension - £42,130

Hip to gable loft conversion - £42,130

Granny annexe - £87,130

Garden office - £10,130

Convert a Garage - £16,130

Garage - £18,630

Build a flat roof extension - £22,130

Build a dormer loft conversion - £42,130

Concrete foundations - £6,380

Convert a bungalow loft - £29,130

Convert a basement - £38,958