Need an Extension Builder in WA10? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
Mark Robinson
Trusted and professional extension builder in WA10. Experienced in all extension buildering work and keeping within budget and on quote. M L R Buil...
G. Finnigan Builders is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for your wo...
From £86,896
HIGHTOWN CONSTRUCTION LTD is an established extension buildering business in WA10. We come highly recommended and provide competitive quotes for yo...

Building a granny annexe ranges from £86,608 (M L R Building Services based in WA11) to £86,896 (HIGHTOWN CONSTRUCTION LTD based in L34), 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 WA10 by posting a job with HaMuch. We will send it to extension builders in WA10 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near St Helens | £31 | £224 |
| Granny Annexe near Prescot | £31 | £223 |
| Granny Annexe near Knowsley | £31 | £222 |
| Granny Annexe near Huyton with Roby | £31 | £225 |
| Granny Annexe near Newton-le-Willows | £31 | £221 |
| Granny Annexe near Ashton-in-Makerfield | £30 | £220 |
| Granny Annexe near Widnes | £31 | £220 |
| Granny Annexe near Kirkby | £31 | £224 |
| Granny Annexe near Orrell | £29 | £214 |
| Granny Annexe near Halton | £31 | £220 |
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 - £17,260

Two storey extension - £87,640

Build a timber frame extension - £25,760

Build a swimming pool - £80,760

Single storey extension - £50,200

Side return extension - £38,800

Install an RSJ - £1,960

Outbuilding - £9,760

Build a Mansard loft conversion - £51,760

Loft conversion - £31,500

Build a kitchen extension - £41,760

Hip to gable loft conversion - £41,760

Granny annexe - £86,760

Garden office - £9,760

Convert a Garage - £15,760

Garage - £18,260

Build a flat roof extension - £21,760

Build a dormer loft conversion - £41,760

Concrete foundations - £6,010

Convert a bungalow loft - £28,760

Convert a basement - £34,800