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Select your affordable Christchurch extension builder
Trusted and professional extension builder in Christchurch. Experienced in all extension buildering work and keeping within budget and on quote. Ha...
Grant Singleton
Christchurch, BH23
Trusted and professional extension builder in Christchurch. Experienced in all extension buildering work and keeping within budget and on quote. GM...
Mark Wadeson
Building extensions and conversions - commercial and domesticstructural repairsgroundworksdrainage workspaving, patios and concreti...
Need to find an Extension Builder near you for all your extension buildering work?
J.V MARSTON BUILDERS provides a local, trusted extension...
Sky Builders is a trusted extension builder serving customers in Christchurch and the surrounding area. Contact us to today to get a competitive qu...
Experienced extension builder ready to quote for your work. C&M Roofing is the best extension builder in Christchurch. No obligation free quotes an...
Experienced extension builder ready to quote for your work. JOSCELYNE BUILDERS is the best extension builder in Christchurch. No obligation free qu...
Trusted and professional extension builder in Christchurch. Experienced in all extension buildering work and keeping within budget and on quote. MD...
Experienced extension builder ready to quote for your work. Nevil Rose is the best extension builder in Christchurch. No obligation free quotes and...

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 Christchurch by posting a job with HaMuch. We will send it to extension builders in Christchurch who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Christchurch | £36 | £251 |
| Granny Annexe near Bournemouth | £38 | £257 |
| 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 Isle of Wight | £34 | £246 |
| Granny Annexe near Romsey | £32 | £230 |
| 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 - £17,714

Two storey extension - £88,320

Build a timber frame extension - £26,214

Build a swimming pool - £81,214

Single storey extension - £59,272

Side return extension - £43,903

Install an RSJ - £2,414

Outbuilding - £10,214

Build a Mansard loft conversion - £52,214

Loft conversion - £35,753

Build a kitchen extension - £42,214

Hip to gable loft conversion - £42,214

Granny annexe - £87,214

Garden office - £10,214

Convert a Garage - £16,214

Garage - £18,714

Build a flat roof extension - £22,214

Build a dormer loft conversion - £42,214

Concrete foundations - £6,464

Convert a bungalow loft - £29,214

Convert a basement - £39,903