Relax... you have found a reliable extension builder in New Forest. 3Lance Developments Limited is a friendly and reliable company based in New For...
GOTHIC CONSTRUCTION LTD is an established and experienced local extension builder in New Forest. Please contact us for a free, no obligation...
Trowel On is an established extension buildering business in New Forest. We come highly recommended and provide competitive quotes for your work.
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in New Forest? Accolade Building Care Ltd. T/A ABC has been helping local clients (20 mile radius) with their extension b...
GDS Building & Maintenance Ltd is an established and experienced local extension builder in New Forest. Please contact us for a free, no obligation...
From £86,288
James Golby
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 £87,120
Advance Shutters Ltd is an established and experienced local extension builder in New Forest. Please contact us for a free, no obligation quote and...
From £87,144
Need to find an Extension Builder near you for all your extension buildering work?
MILESTONE BUILDING CONTRACTORS provides a local, trusted...

Building a granny annexe ranges from £86,288 (James Golby Construction based in SO51) to £87,152 (3Lance Developments Limited based in SO41), 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 - £17,429

Two storey extension - £87,893

Build a timber frame extension - £25,929

Build a swimming pool - £80,929

Single storey extension - £53,576

Side return extension - £40,699

Install an RSJ - £2,129

Outbuilding - £9,929

Build a Mansard loft conversion - £51,929

Loft conversion - £33,083

Build a kitchen extension - £41,929

Hip to gable loft conversion - £41,929

Granny annexe - £86,929

Garden office - £9,929

Convert a Garage - £15,929

Garage - £18,429

Build a flat roof extension - £21,929

Build a dormer loft conversion - £41,929

Concrete foundations - £6,179

Convert a bungalow loft - £28,929

Convert a basement - £36,699