Marlow, SL7
Relax... you have found a reliable extension builder in Marlow. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in Marlow wh...
Trusted and professional extension builder in Marlow. Experienced in all extension buildering work and keeping within budget and on quote. TENNORCR...
EIC Builders Ltd are here to help customers who need an Extension Builder in Marlow. We offer a competitive rate to complete all your extension bui...
Our building services company A Iqbal Construction Ltd was established in 2018. Since then, we have been helping customers in Slough and the surrou...
Experienced extension builder ready to quote for your work. Rai Builders is the best extension builder in Marlow. No obligation free quotes and man...
B.A Ruffle Building Contractor is an established extension buildering business in Marlow. We come highly recommended and provide competitive quotes...
BeautifulRenovation are here to help customers who need an Extension Builder in Marlow. We offer a competitive rate to complete all your extension ...
Mario
Trusted and professional extension builder in Marlow. Experienced in all extension buildering work and keeping within budget and on quote. Mario Po...
Relax... you have found a reliable extension builder in Marlow. Building High Wycombe is a friendly and reliable company based in Marlow who consid...
Mitchell & Co Building & Renovations Ltd is an established extension buildering business in Marlow. We come highly recommended and provide competit...

Building a granny annexe ranges from £86,912 (TENNORCREST CONSTRUCTION based in SL6) to £87,352 (Mario Polish Builders based in SL2), 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 Marlow by posting a job with HaMuch. We will send it to extension builders in Marlow who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near High Wycombe | £39 | £272 |
| Granny Annexe near Maidenhead | £41 | £273 |
| Granny Annexe near Wycombe | £39 | £271 |
| Granny Annexe near Hazlemere | £40 | £272 |
| Granny Annexe near Slough | £42 | £272 |
| Granny Annexe near Windsor | £41 | £271 |
| Granny Annexe near Windsor & Maidenhead | £42 | £272 |
| Granny Annexe near Gerrards Cross | £43 | £282 |
| Granny Annexe near Woodley | £42 | £266 |
| Granny Annexe near Caversham | £38 | £265 |
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 - £17,570

Two storey extension - £88,104

Build a timber frame extension - £26,070

Build a swimming pool - £81,070

Single storey extension - £56,392

Side return extension - £42,283

Install an RSJ - £2,270

Outbuilding - £10,070

Build a Mansard loft conversion - £52,070

Loft conversion - £34,403

Build a kitchen extension - £42,070

Hip to gable loft conversion - £42,070

Granny annexe - £87,070

Garden office - £10,070

Convert a Garage - £16,070

Garage - £18,570

Build a flat roof extension - £22,070

Build a dormer loft conversion - £42,070

Concrete foundations - £6,320

Convert a bungalow loft - £29,070

Convert a basement - £38,283