From £86,752
4Walls Project Management Ltd is an established and experienced local extension builder in SP10. Please contact us for a free, no obligation quote ...
From £86,984
Relax... you have found a reliable extension builder in SP10. Bob Shearer Property Maintenance, Building & Roofing is a friendly and reliable compa...
From £86,896
Relax... you have found a reliable extension builder in SP10. Groundcraft Ltd is a friendly and reliable company based in SP10 who consider no job ...
From £87,104
Relax... you have found a reliable extension builder in SP10. Eds Builders is a friendly and reliable company based in SP10 who consider no job as ...
From £87,072
DMT Construction t/a are here to help customers who need an Extension Builder in SP10. We offer a competitive rate to complete all your extension b...
From £87,120
Our building services company Shadow UK Construction Ltd was established in March 2022, but have been providing professional, trustworthy building ...
From £87,168
Trusted and professional extension builder in SP10. Experienced in all extension buildering work and keeping within budget and on quote. Sarsen Ene...
From £87,000
Connie & Bella Industry Ltd is a trusted extension builder serving customers in SP10 and the surrounding area. Contact us to today to get a competi...
From £87,040
Need an Extension Builder in SP10? BARTITIONS DESIGN & BUILD LTD has been helping local clients (20 mile radius) with their extension buildering j...
From £87,104
JJ Acquisitions ltd is a trusted extension builder serving customers in SP10 and the surrounding area. Contact us to today to get a competitive quo...

Building a granny annexe ranges from £86,752 (4Walls Project Management Ltd based in SP10) to £87,168 (Sarsen Energy Ltd based in SN8), 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 SP10 by posting a job with HaMuch. We will send it to extension builders in SP10 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Andover | £40 | £248 |
| Granny Annexe near Test Valley | £37 | £261 |
| Granny Annexe near Winchester | £37 | £266 |
| Granny Annexe near Basingstoke & Deane | £39 | £273 |
| Granny Annexe near Newbury | £37 | £262 |
| Granny Annexe near Romsey | £32 | £230 |
| Granny Annexe near Chandler's Ford | £34 | £245 |
| Granny Annexe near Thatcham | £38 | £266 |
| Granny Annexe near Salisbury | £35 | £247 |
| Granny Annexe near Basingstoke | £39 | £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 - £17,524

Two storey extension - £88,036

Build a timber frame extension - £26,024

Build a swimming pool - £81,024

Single storey extension - £55,480

Side return extension - £41,770

Install an RSJ - £2,224

Outbuilding - £10,024

Build a Mansard loft conversion - £52,024

Loft conversion - £33,975

Build a kitchen extension - £42,024

Hip to gable loft conversion - £42,024

Granny annexe - £87,024

Garden office - £10,024

Convert a Garage - £16,024

Garage - £18,524

Build a flat roof extension - £22,024

Build a dormer loft conversion - £42,024

Concrete foundations - £6,274

Convert a bungalow loft - £29,024

Convert a basement - £37,770