From £87,344
We work closely with our Clients to provide the most suitable procurement route to suit each Client’s requirements and aspirations. We are experi...
From £87,536
We provide structural engineering design and construction service (D&B) Our dedicated, enthusiastic and highly qualified staff to find the appropri...
From £87,032
Guildford, GU1
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,392
Cannon Build Solutions is a local family-run building firm whose strong reliable reputation has been well established in North-West London and Buck...
From £88,136
Guildford, GU3
Paramount Brickwork Limited is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes...
From £87,320
M &M GENERAL BUILDING is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for y...
From £87,424
Trusted and professional extension builder in Guildford. Experienced in all extension buildering work and keeping within budget and on quote. Chint...
From £87,320
Need an Extension Builder in Guildford? P J HARDIMAN BUILDING CONTRACT has been helping local clients (20 mile radius) with their extension builder...
From £86,712
K P WARNE BUILDERS is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for your...
From £89,608
With well over a decade of marketing and web design experience working for a variety of tradespeople from cleaners through to builders, Websites 4 ...

Building a granny annexe ranges from £86,712 (K P WARNE BUILDERS based in GU7) to £89,608 (Websites 4 Trades based in GU7), 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 | £273 |
| Granny Annexe near New Haw | £43 | £273 |
| Granny Annexe near Farnham | £41 | £276 |
| Granny Annexe near Camberley | £41 | £283 |
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 - £18,082

Two storey extension - £88,874

Build a timber frame extension - £26,582

Build a swimming pool - £81,582

Single storey extension - £66,648

Side return extension - £48,052

Install an RSJ - £2,782

Outbuilding - £10,582

Build a Mansard loft conversion - £52,582

Loft conversion - £39,210

Build a kitchen extension - £42,582

Hip to gable loft conversion - £42,582

Granny annexe - £87,582

Garden office - £10,582

Convert a Garage - £16,582

Garage - £19,082

Build a flat roof extension - £22,582

Build a dormer loft conversion - £42,582

Concrete foundations - £6,832

Convert a bungalow loft - £29,582

Convert a basement - £44,052