From £86,824
Need an Extension Builder in Southam? M.J Greatrex Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £86,696
Trusted and professional extension builder in Southam. Experienced in all extension buildering work and keeping within budget and on quote. Byrne R...
From £86,960
Mark Anthony Builders are here to help customers who need an Extension Builder in Southam. We offer a competitive rate to complete all your extensi...
From £86,944
Experienced extension builder ready to quote for your work. TKB Construction is the best extension builder in Southam. No obligation free quotes an...
From £86,472
33 years experience focussing on full home refurbishments, extensions, kitchens & bathrooms, rubber roofing, floor screed & loft conversion...
From £86,952
Trusted and professional extension builder in Southam. Experienced in all extension buildering work and keeping within budget and on quote. B.A Pla...
From £86,576
Need an Extension Builder in Southam? Barrys Home & Maintenance has been helping local clients (20 mile radius) with their extension buildering job...
From £86,712
Need to find an Extension Builder near you for all your extension buildering work?
BAKER CONSTRUCTION provides a local, trusted extension b...
From £86,880
Need an Extension Builder in Southam? Mint Landscaping has been helping local clients (20 mile radius) with their extension buildering jobs for man...
From £87,064
I have been in the building industry for 28 years and have carried out extensions,loft conversions, knock throughs, plastering, carpentry,roofing a...

Building a granny annexe ranges from £86,472 (Simms Building Services Ltd based in CV2) to £87,064 (MYBUILD based in B93), 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 Southam by posting a job with HaMuch. We will send it to extension builders in Southam who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Leamington Spa | £27 | £212 |
| Granny Annexe near Daventry | £31 | £230 |
| Granny Annexe near Warwick | £28 | £213 |
| Granny Annexe near Rugby | £31 | £224 |
| Granny Annexe near Kenilworth | £29 | £224 |
| Granny Annexe near Banbury | £33 | £239 |
| Granny Annexe near Coventry | £28 | £222 |
| Granny Annexe near Stratford-on-Avon | £27 | £215 |
| Granny Annexe near Stratford-upon-Avon | £27 | £215 |
| Granny Annexe near Bedworth | £28 | £219 |
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 - £17,308

Two storey extension - £87,712

Build a timber frame extension - £25,808

Build a swimming pool - £80,808

Single storey extension - £51,160

Side return extension - £39,340

Install an RSJ - £2,008

Outbuilding - £9,808

Build a Mansard loft conversion - £51,808

Loft conversion - £31,950

Build a kitchen extension - £41,808

Hip to gable loft conversion - £41,808

Granny annexe - £86,808

Garden office - £9,808

Convert a Garage - £15,808

Garage - £18,308

Build a flat roof extension - £21,808

Build a dormer loft conversion - £41,808

Concrete foundations - £6,058

Convert a bungalow loft - £28,808

Convert a basement - £35,340