From £86,904
Clever Build & Design is an established extension buildering business in New Forest. We come highly recommended and provide competitive quotes for ...
From £87,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,928
GDS Building & Maintenance Ltd is an established and experienced local extension builder in New Forest. Please contact us for a free, no obligation...
From £86,856
Trowel On is an established extension buildering business in New Forest. We come highly recommended and provide competitive quotes for your work.
From £87,144
Need to find an Extension Builder near you for all your extension buildering work?
MILESTONE BUILDING CONTRACTORS provides a local, trusted...
From £86,288
All our work carries a life time guarantee , If we did it and you have a problem we want to know about it. Not the bloke in the pub or your next do...
From £87,064
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,944
GOTHIC CONSTRUCTION LTD is an established and experienced local extension builder in New Forest. Please contact us for a free, no obligation...
From £86,808
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Building a granny annexe ranges from £86,288 (James Golby Construction based in SO51) to £87,144 (MILESTONE BUILDING CONTRACTORS based in SP6), 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 New Forest by posting a job with HaMuch. We will send it to extension builders in New Forest who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near New Forest | £32 | £245 |
| Granny Annexe near Totton | £34 | £243 |
| Granny Annexe near Romsey | £32 | £230 |
| Granny Annexe near Southampton | £34 | £243 |
| Granny Annexe near Christchurch | £36 | £251 |
| Granny Annexe near Eastleigh | £34 | £244 |
| Granny Annexe near Chandler's Ford | £34 | £245 |
| Granny Annexe near Hedge End | £34 | £244 |
| Granny Annexe near Locks Heath | £33 | £240 |
| Granny Annexe near Salisbury | £35 | £247 |
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 - £17,406

Two storey extension - £87,860

Build a timber frame extension - £25,906

Build a swimming pool - £80,906

Single storey extension - £53,128

Side return extension - £40,447

Install an RSJ - £2,106

Outbuilding - £9,906

Build a Mansard loft conversion - £51,906

Loft conversion - £32,873

Build a kitchen extension - £41,906

Hip to gable loft conversion - £41,906

Granny annexe - £86,906

Garden office - £9,906

Convert a Garage - £15,906

Garage - £18,406

Build a flat roof extension - £21,906

Build a dormer loft conversion - £41,906

Concrete foundations - £6,156

Convert a bungalow loft - £28,906

Convert a basement - £36,447