Grant Singleton
Trusted and professional extension builder in BH8. Experienced in all extension buildering work and keeping within budget and on quote. GMS Carpent...
Mark Wadeson
Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concreti...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need to find an Extension Builder near you for all your extension buildering work?
J.V MARSTON BUILDERS provides a local, trusted extension...
Trusted and professional extension builder in BH8. Experienced in all extension buildering work and keeping within budget and on quote. Hayes Lands...
Sky Builders is a trusted extension builder serving customers in BH8 and the surrounding area. Contact us to today to get a competitive quote for e...
Experienced extension builder ready to quote for your work. C&M Roofing is the best extension builder in BH8. No obligation free quotes and many ha...
Experienced extension builder ready to quote for your work. JOSCELYNE BUILDERS is the best extension builder in BH8. No obligation free quotes and ...
Trusted and professional extension builder in BH8. Experienced in all extension buildering work and keeping within budget and on quote. MDW KITCHEN...
Experienced extension builder ready to quote for your work. Nevil Rose is the best extension builder in BH8. No obligation free quotes and many hap...

Building a granny annexe ranges from £86,576 (ALWYN DOMINEY based in BH12) to £88,200 (Wade and Son Builders based in bh22), 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 BH8 by posting a job with HaMuch. We will send it to extension builders in BH8 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bournemouth | £38 | £257 |
| Granny Annexe near Christchurch | £36 | £251 |
| Granny Annexe near Poole | £38 | £250 |
| Granny Annexe near New Forest | £32 | £245 |
| Granny Annexe near Totton | £34 | £243 |
| Granny Annexe near Southampton | £34 | £243 |
| Granny Annexe near Salisbury | £35 | £247 |
| Granny Annexe near Romsey | £32 | £230 |
| Granny Annexe near Isle of Wight | £34 | £246 |
| Granny Annexe near Locks Heath | £33 | £240 |
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 - £17,621

Two storey extension - £88,181

Build a timber frame extension - £26,121

Build a swimming pool - £81,121

Single storey extension - £57,416

Side return extension - £42,859

Install an RSJ - £2,321

Outbuilding - £10,121

Build a Mansard loft conversion - £52,121

Loft conversion - £34,883

Build a kitchen extension - £42,121

Hip to gable loft conversion - £42,121

Granny annexe - £87,121

Garden office - £10,121

Convert a Garage - £16,121

Garage - £18,621

Build a flat roof extension - £22,121

Build a dormer loft conversion - £42,121

Concrete foundations - £6,371

Convert a bungalow loft - £29,121

Convert a basement - £38,859