From £86,800
Trusted and professional extension builder in IP9. Experienced in all extension buildering work and keeping within budget and on quote. James Franc...
From £87,112
San Diego Construction Custom Homes has experience building homes in the UK, Canada and the United States since 1999. It was founded on quality and...

Building a granny annexe ranges from £86,800 (James Francis based in IP3) to £87,112 (San Diego Construction Inc based in IP3), 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 IP9 by posting a job with HaMuch. We will send it to extension builders in IP9 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Ipswich | £33 | £235 |
| Granny Annexe near Harwich | £34 | £248 |
| Granny Annexe near Tendring | £31 | £226 |
| Granny Annexe near Felixstowe | £31 | £231 |
| Granny Annexe near Colchester | £34 | £232 |
| Granny Annexe near Clacton-on-Sea | £31 | £230 |
| Granny Annexe near Suffolk Coastal | £28 | £215 |
| Granny Annexe near Stowmarket | £30 | £221 |
| Granny Annexe near Sudbury | £34 | £229 |
| Granny Annexe near Witham | £36 | £240 |
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 - £17,456

Two storey extension - £87,934

Build a timber frame extension - £25,956

Build a swimming pool - £80,956

Single storey extension - £54,120

Side return extension - £41,005

Install an RSJ - £2,156

Outbuilding - £9,956

Build a Mansard loft conversion - £51,956

Loft conversion - £33,338

Build a kitchen extension - £41,956

Hip to gable loft conversion - £41,956

Granny annexe - £86,956

Garden office - £9,956

Convert a Garage - £15,956

Garage - £18,456

Build a flat roof extension - £21,956

Build a dormer loft conversion - £41,956

Concrete foundations - £6,206

Convert a bungalow loft - £28,956

Convert a basement - £37,005