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Select your affordable BH7 extension builder
Sky Builders is a trusted extension builder serving customers in BH7 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 BH7. No obligation free quotes and many ha...
Mark Wadeson
Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concreti...
Grant Singleton
Trusted and professional extension builder in BH7. Experienced in all extension buildering work and keeping within budget and on quote. GMS Carpent...
Experienced extension builder ready to quote for your work. JOSCELYNE BUILDERS is the best extension builder in BH7. No obligation free quotes and ...
Experienced extension builder ready to quote for your work. Nevil Rose is the best extension builder in BH7. No obligation free quotes and many hap...
Richard Elemr
Elmer Building Services ltd is an established extension buildering business in BH7. We come highly recommended and provide competitive quotes for y...
Experienced extension builder ready to quote for your work. PINEVALE BUILDING is the best extension builder in BH7. No obligation free quotes and m...
We have over 20 years experience, delivering projects on time with exceptional effort into the quality of our work. Over the years we have perfecte...

Building a granny annexe ranges from £86,808 (Sky Builders based in BH8) 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 BH7 by posting a job with HaMuch. We will send it to extension builders in BH7 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 Romsey | £32 | £230 |
| Granny Annexe near Salisbury | £35 | £247 |
| 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 - £17,709

Two storey extension - £88,313

Build a timber frame extension - £26,209

Build a swimming pool - £81,209

Single storey extension - £59,176

Side return extension - £43,849

Install an RSJ - £2,409

Outbuilding - £10,209

Build a Mansard loft conversion - £52,209

Loft conversion - £35,708

Build a kitchen extension - £42,209

Hip to gable loft conversion - £42,209

Granny annexe - £87,209

Garden office - £10,209

Convert a Garage - £16,209

Garage - £18,709

Build a flat roof extension - £22,209

Build a dormer loft conversion - £42,209

Concrete foundations - £6,459

Convert a bungalow loft - £29,209

Convert a basement - £39,849