From £87,280
Need an Extension Builder in Ewell? SJD Building Services has been helping local clients (10 mile radius) with their extension buildering jobs for ...
From £87,144
Trusted and professional extension builder in Ewell. Experienced in all extension buildering work and keeping within budget and on quote. YORKE CON...
From £87,080
Need an Extension Builder in Ewell? Jewel Group Ltd has been helping local clients (10 mile radius) with their extension buildering jobs for many y...
From £87,176
Extensions, Loft and garage conversions, New builds, Design and build, Project management
From £87,224
Croystone Ltd. is an established extension buildering business in Ewell. We come highly recommended and provide competitive quotes for your work.
From £87,032
Croystone Ltd is a design and construction company with its own direct labour force but can also boast a wide range of subcontract labour skills an...
From £87,472
I am a profesional work contractor who can put your whole project together. I will assume complete responsibility for the work contracted and give ...
From £87,384
Trusted and professional extension builder in Ewell. Experienced in all extension buildering work and keeping within budget and on quote. CJC BUILD...
From £87,128
Our building services company Refine Property Maintenance Ltd was established in 2020. Since then we have been helping customers in and around Epso...
From £86,560
Experienced extension builder ready to quote for your work. Priority Roofbuild Ltd is the best extension builder in Ewell. No obligation free quote...

Building a granny annexe ranges from £86,560 (Priority Roofbuild Ltd based in KT17) to £87,472 (KJ Construction LTD based in kt17), 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 Ewell by posting a job with HaMuch. We will send it to extension builders in Ewell who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Ewell | £43 | £274 |
| Granny Annexe near Epsom | £43 | £274 |
| Granny Annexe near Sutton | £43 | £273 |
| Granny Annexe near Kingston Upon Thames | £43 | £271 |
| Granny Annexe near Esher | £43 | £274 |
| Granny Annexe near Tadworth | £41 | £271 |
| Granny Annexe near Reigate & Banstead | £41 | £271 |
| Granny Annexe near Wimbledon | £43 | £271 |
| Granny Annexe near Merton | £43 | £272 |
| Granny Annexe near Richmond Upon Thames | £43 | £273 |
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 - £17,648

Two storey extension - £88,222

Build a timber frame extension - £26,148

Build a swimming pool - £81,148

Single storey extension - £57,960

Side return extension - £43,165

Install an RSJ - £2,348

Outbuilding - £10,148

Build a Mansard loft conversion - £52,148

Loft conversion - £35,138

Build a kitchen extension - £42,148

Hip to gable loft conversion - £42,148

Granny annexe - £87,148

Garden office - £10,148

Convert a Garage - £16,148

Garage - £18,648

Build a flat roof extension - £22,148

Build a dormer loft conversion - £42,148

Concrete foundations - £6,398

Convert a bungalow loft - £29,148

Convert a basement - £39,165