From £86,600
TIMBER PRODUCT CONSTRUCTION is an established extension buildering business in EX20. We come highly recommended and provide competitive quotes for ...
From £86,680
Justin Ware
We are a small team of Builders working out of Okehampton. We take on all types of projects small and large. From bathrooms to kitchens, plastering...

Building a granny annexe ranges from £86,600 (TIMBER PRODUCT CONSTRUCTION based in EX20) to £86,680 (J.Ware Builder based in EX20), 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 EX20 by posting a job with HaMuch. We will send it to extension builders in EX20 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bideford | £22 | £174 |
| Granny Annexe near Teignbridge | £27 | £260 |
| Granny Annexe near Exeter | £27 | £221 |
| Granny Annexe near Barnstaple | £25 | £196 |
| Granny Annexe near Newton Abbot | £27 | £236 |
| Granny Annexe near Tiverton | £25 | £202 |
| Granny Annexe near Plymouth | £30 | £230 |
| Granny Annexe near Exmouth | £24 | £210 |
| Granny Annexe near Paignton | £27 | £222 |
| Granny Annexe near Torquay | £28 | £223 |
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 - £17,140

Two storey extension - £87,460

Build a timber frame extension - £25,640

Build a swimming pool - £80,640

Single storey extension - £47,800

Side return extension - £37,450

Install an RSJ - £1,840

Outbuilding - £9,640

Build a Mansard loft conversion - £51,640

Loft conversion - £30,375

Build a kitchen extension - £41,640

Hip to gable loft conversion - £41,640

Granny annexe - £86,640

Garden office - £9,640

Convert a Garage - £15,640

Garage - £18,140

Build a flat roof extension - £21,640

Build a dormer loft conversion - £41,640

Concrete foundations - £5,890

Convert a bungalow loft - £28,640

Convert a basement - £33,450