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From £86,856
Eric Keymer
I have 20 years experience in covering all aspects of the Biulding trade.
From £86,864
Need an Extension Builder in Barrow? K T GRIDLEY GENERAL BUILDER has been helping local clients (20 mile radius) with their extension buildering jo...
From £86,744
Experienced extension builder ready to quote for your work. Brayfield Construction is the best extension builder in Barrow. No obligation free quot...

Building a granny annexe ranges from £86,744 (Brayfield Construction based in IP33) to £86,864 (K T GRIDLEY GENERAL BUILDER based in CO10), 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 Barrow by posting a job with HaMuch. We will send it to extension builders in Barrow who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Bury St Edmunds | £34 | £251 |
| Granny Annexe near Sudbury | £34 | £229 |
| Granny Annexe near Haverhill | £37 | £260 |
| Granny Annexe near Stowmarket | £30 | £221 |
| Granny Annexe near Thetford | £42 | £277 |
| Granny Annexe near Ely | £40 | £279 |
| Granny Annexe near Braintree | £37 | £247 |
| Granny Annexe near Ipswich | £33 | £235 |
| Granny Annexe near Colchester | £34 | £232 |
| Granny Annexe near Cambridge | £41 | £275 |
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 - £17,321

Two storey extension - £87,732

Build a timber frame extension - £25,821

Build a swimming pool - £80,821

Single storey extension - £51,427

Side return extension - £39,490

Install an RSJ - £2,021

Outbuilding - £9,821

Build a Mansard loft conversion - £51,821

Loft conversion - £32,075

Build a kitchen extension - £41,821

Hip to gable loft conversion - £41,821

Granny annexe - £86,821

Garden office - £9,821

Convert a Garage - £15,821

Garage - £18,321

Build a flat roof extension - £21,821

Build a dormer loft conversion - £41,821

Concrete foundations - £6,071

Convert a bungalow loft - £28,821

Convert a basement - £35,490