Gary Bushen
Trusted and professional extension builder in PL29. Experienced in all extension buildering work and keeping within budget and on quote. Bushen Bui...

Building a granny annexe ranges from £87,048 (Bushen Builders based in PL27) to £87,048 (Bushen Builders based in PL27), 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 PL29 by posting a job with HaMuch. We will send it to extension builders in PL29 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Newquay | £32 | £230 |
| Granny Annexe near St Austell | £38 | £245 |
| Granny Annexe near Truro | £31 | £206 |
| Granny Annexe near Camborne | £28 | £196 |
| Granny Annexe near St Ives, Cornwall | £27 | £188 |
| Granny Annexe near Bideford | £22 | £174 |
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 - £17,548

Two storey extension - £88,072

Build a timber frame extension - £26,048

Build a swimming pool - £81,048

Single storey extension - £55,960

Side return extension - £42,040

Install an RSJ - £2,248

Outbuilding - £10,048

Build a Mansard loft conversion - £52,048

Loft conversion - £34,200

Build a kitchen extension - £42,048

Hip to gable loft conversion - £42,048

Granny annexe - £87,048

Garden office - £10,048

Convert a Garage - £16,048

Garage - £18,548

Build a flat roof extension - £22,048

Build a dormer loft conversion - £42,048

Concrete foundations - £6,298

Convert a bungalow loft - £29,048

Convert a basement - £38,040