From £87,264
Henley-on-thames, RG9
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,032
Henley-on-Thames, RG9
Porter & Son Ltd is a trusted extension builder serving customers in Henley-on-thames and the surrounding area. Contact us to today to get a compet...
From £87,472
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,376
Experienced extension builder ready to quote for your work. WARRICK BUILDING is the best extension builder in Henley-on-thames. No obligation free ...
From £86,928
Relax... you have found a reliable extension builder in Henley-on-thames. J & K CONSTRUCTION is a friendly and reliable company based in Henley-on-...
From £87,112
Relax... you have found a reliable extension builder in Henley-on-thames. P Stelling General Builders is a friendly and reliable company based in H...
From £87,192
Henley-on-thames, RG9
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,872
Need to find an Extension Builder near you for all your extension buildering work?
CRS Roofing provides a local, trusted extension builderi...
From £86,968
Need an Extension Builder in Henley-on-thames? W.D.Construction has been helping local clients (20 mile radius) with their extension buildering job...
From £87,296
At Velvaere Studios, we design and fit out residential and commercial fitness and wellness studios with specialist finishes and fitness equipment.W...

Building a granny annexe ranges from £86,872 (CRS Roofing based in RG4) to £87,472 (Kambos Consulting based in RG9), 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 Henley-on-thames by posting a job with HaMuch. We will send it to extension builders in Henley-on-thames who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Caversham | £33 | £229 |
| Granny Annexe near Woodley | £37 | £232 |
| Granny Annexe near Reading | £36 | £230 |
| Granny Annexe near Wycombe | £34 | £234 |
| Granny Annexe near High Wycombe | £34 | £237 |
| Granny Annexe near Maidenhead | £36 | £236 |
| Granny Annexe near South Oxfordshire | £32 | £229 |
| Granny Annexe near Wokingham | £35 | £241 |
| Granny Annexe near Bracknell Forest | £35 | £248 |
| Granny Annexe near Hazlemere | £34 | £235 |
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 - £17,651

Two storey extension - £88,227

Build a timber frame extension - £26,151

Build a swimming pool - £81,151

Single storey extension - £58,024

Side return extension - £43,201

Install an RSJ - £2,351

Outbuilding - £10,151

Build a Mansard loft conversion - £52,151

Loft conversion - £35,168

Build a kitchen extension - £42,151

Hip to gable loft conversion - £42,151

Granny annexe - £87,151

Garden office - £10,151

Convert a Garage - £16,151

Garage - £18,651

Build a flat roof extension - £22,151

Build a dormer loft conversion - £42,151

Concrete foundations - £6,401

Convert a bungalow loft - £29,151

Convert a basement - £39,201