Robuild - Waterwise is an established extension buildering business in L1. We come highly recommended and provide competitive quotes for your work....
Need an Extension Builder in L1? PK.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years. G...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Sean Mooney
SJBuild Ltd is an established and experienced local extension builder in L1. Please contact us for a free, no obligation quote and competitive rate...
Need to find an Extension Builder near you for all your extension buildering work?
S.L.P Property Maintenance provides a local, trusted ext...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Danny Anderson
Danny Anderson Builder is an established extension buildering business in L1. We come highly recommended and provide competitive quotes for your wo...
J.M.C Building Services is a trusted extension builder serving customers in L1 and the surrounding area. Contact us to today to get a competitive q...
Need an Extension Builder in L1? Bob the Builder has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
Peter Gallagher
Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in L1. No obligation free quotes ...

Building a granny annexe ranges from £86,392 (SJBuild Ltd based in CH63) to £86,952 (R J Property Maintenance & Repair based in CH63), 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 L1 by posting a job with HaMuch. We will send it to extension builders in L1 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Liverpool | £31 | £222 |
| Granny Annexe near Birkenhead | £31 | £219 |
| Granny Annexe near Wallasey | £32 | £224 |
| Granny Annexe near Bootle | £32 | £224 |
| Granny Annexe near Bebington | £31 | £222 |
| Granny Annexe near Wirral | £31 | £219 |
| Granny Annexe near Crosby | £33 | £223 |
| Granny Annexe near Kirkby | £31 | £224 |
| Granny Annexe near Huyton with Roby | £31 | £225 |
| Granny Annexe near Knowsley | £31 | £222 |
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 - £17,276

Two storey extension - £87,664

Build a timber frame extension - £25,776

Build a swimming pool - £80,776

Single storey extension - £50,520

Side return extension - £38,980

Install an RSJ - £1,976

Outbuilding - £9,776

Build a Mansard loft conversion - £51,776

Loft conversion - £31,650

Build a kitchen extension - £41,776

Hip to gable loft conversion - £41,776

Granny annexe - £86,776

Garden office - £9,776

Convert a Garage - £15,776

Garage - £18,276

Build a flat roof extension - £21,776

Build a dormer loft conversion - £41,776

Concrete foundations - £6,026

Convert a bungalow loft - £28,776

Convert a basement - £34,980