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Need to find an Extension Builder near you for all your extension buildering work?
S.L.P Property Maintenance provides a local, trusted ext...
Need to find an Extension Builder near you for all your extension buildering work?
Derek J Platt & Co provides a local, trusted extension b...
Robuild - Waterwise is an established extension buildering business in Sefton. We come highly recommended and provide competitive quotes for your w...
Trusted and professional extension builder in Sefton. Experienced in all extension buildering work and keeping within budget and on quote. DW Brick...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in Sefton. No obligation free quo...
J.M.C Building Services is a trusted extension builder serving customers in Sefton and the surrounding area. Contact us to today to get a competiti...
Relax... you have found a reliable extension builder in Sefton. KM Building Services is a friendly and reliable company based in Sefton who conside...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Sefton? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many ...

Building a granny annexe ranges from £86,672 (J.M.C Building Services based in L4) to £86,952 (DW Brickwork based in CH46), 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 Sefton by posting a job with HaMuch. We will send it to extension builders in Sefton who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Sefton | £35 | £234 |
| Granny Annexe near Crosby | £35 | £234 |
| Granny Annexe near Formby | £28 | £206 |
| Granny Annexe near Bootle | £33 | £228 |
| Granny Annexe near Maghull | £34 | £231 |
| Granny Annexe near Wallasey | £32 | £224 |
| Granny Annexe near Kirkby | £31 | £224 |
| Granny Annexe near Liverpool | £31 | £222 |
| Granny Annexe near Ormskirk | £29 | £206 |
| Granny Annexe near Birkenhead | £31 | £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 - £17,314

Two storey extension - £87,720

Build a timber frame extension - £25,814

Build a swimming pool - £80,814

Single storey extension - £51,272

Side return extension - £39,403

Install an RSJ - £2,014

Outbuilding - £9,814

Build a Mansard loft conversion - £51,814

Loft conversion - £32,003

Build a kitchen extension - £41,814

Hip to gable loft conversion - £41,814

Granny annexe - £86,814

Garden office - £9,814

Convert a Garage - £15,814

Garage - £18,314

Build a flat roof extension - £21,814

Build a dormer loft conversion - £41,814

Concrete foundations - £6,064

Convert a bungalow loft - £28,814

Convert a basement - £35,403