Mark Boobyer
Karesa Developments Ltd is a trusted extension builder serving customers in TA21 and the surrounding area. Contact us to today to get a competitive...
Andrew Childs
Been installing fascia soffits for over twenty years i profide a very good service
SDP CONSTRUCTION LTD is a trusted extension builder serving customers in TA21 and the surrounding area. Contact us to today to get a competitive qu...

Building a granny annexe ranges from £86,472 (Andrew Childs Fascias, Soffits & Guttering based in TA21) to £87,064 (Karesa Developments Ltd based in TA21), 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 TA21 by posting a job with HaMuch. We will send it to extension builders in TA21 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Taunton | £31 | £242 |
| Granny Annexe near Tiverton | £25 | £202 |
| Granny Annexe near Bridgwater | £30 | £236 |
| Granny Annexe near East Devon | £27 | £221 |
| Granny Annexe near Exeter | £27 | £221 |
| Granny Annexe near South Somerset | £62 | £270 |
| Granny Annexe near Exmouth | £24 | £210 |
| Granny Annexe near Yeovil | £34 | £294 |
| Granny Annexe near Barry | £33 | £223 |
| Granny Annexe near Weston-super-Mare | £33 | £253 |
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 - £17,225

Two storey extension - £87,588

Build a timber frame extension - £25,725

Build a swimming pool - £80,725

Single storey extension - £49,507

Side return extension - £38,410

Install an RSJ - £1,925

Outbuilding - £9,725

Build a Mansard loft conversion - £51,725

Loft conversion - £31,175

Build a kitchen extension - £41,725

Hip to gable loft conversion - £41,725

Granny annexe - £86,725

Garden office - £9,725

Convert a Garage - £15,725

Garage - £18,225

Build a flat roof extension - £21,725

Build a dormer loft conversion - £41,725

Concrete foundations - £5,975

Convert a bungalow loft - £28,725

Convert a basement - £34,410