Experienced extension builder ready to quote for your work. S B V CONSTRUCTION LIMITED is the best extension builder in BN23. No obligation free qu...
Russell Channnon
At Templar Developments we work with our clients from thought to finish all the while keeping quality 110%. We cover all your construction needs on...
Ansell Builders is a trusted extension builder serving customers in BN23 and the surrounding area. Contact us to today to get a competitive quote f...
Experienced extension builder ready to quote for your work. James Rudd General Building is the best extension builder in BN23. No obligation free q...
CROWHURST BUILDERS LIMITED is an established extension buildering business in BN23. We come highly recommended and provide competitive quotes for y...
Experienced extension builder ready to quote for your work. Brighton Marina Hand Car Wash is the best extension builder in BN23. No obligation free...
Experienced extension builder ready to quote for your work. CITY BUILDING SERVICES LIMITED is the best extension builder in BN23. No obligation fre...
Leon O'prey
Relax... you have found a reliable extension builder in BN23. Ljo Brickwork, Landscapes and General Building is a friendly and reliable company bas...
Need to find an Extension Builder near you for all your extension buildering work?
S F CONSTRUCTION provides a local, trusted extension bu...
Citadel Construction is an established extension buildering business in BN23. We come highly recommended and provide competitive quotes for your wo...

Building a granny annexe ranges from £86,736 (CROWHURST BUILDERS LIMITED based in TN33) to £88,120 (CITY BUILDING SERVICES LIMITED based in BN2), 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 BN23 by posting a job with HaMuch. We will send it to extension builders in BN23 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Eastbourne | £32 | £245 |
| Granny Annexe near Hailsham | £31 | £243 |
| Granny Annexe near Bexhill-on-Sea | £31 | £243 |
| Granny Annexe near Seaford | £34 | £243 |
| Granny Annexe near Wealden | £35 | £256 |
| Granny Annexe near Hastings | £31 | £246 |
| Granny Annexe near Crowborough | £36 | £258 |
| Granny Annexe near Brighton and Hove | £35 | £251 |
| Granny Annexe near Brighton | £35 | £251 |
| Granny Annexe near Burgess Hill | £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 - £17,537

Two storey extension - £88,055

Build a timber frame extension - £26,037

Build a swimming pool - £81,037

Single storey extension - £55,736

Side return extension - £41,914

Install an RSJ - £2,237

Outbuilding - £10,037

Build a Mansard loft conversion - £52,037

Loft conversion - £34,095

Build a kitchen extension - £42,037

Hip to gable loft conversion - £42,037

Granny annexe - £87,037

Garden office - £10,037

Convert a Garage - £16,037

Garage - £18,537

Build a flat roof extension - £22,037

Build a dormer loft conversion - £42,037

Concrete foundations - £6,287

Convert a bungalow loft - £29,037

Convert a basement - £37,914