From £86,992
Trusted and professional extension builder in BN44. Experienced in all extension buildering work and keeping within budget and on quote. Salamander...
From £87,192
Woodmans Construction are here to help customers who need an Extension Builder in BN44. We offer a competitive rate to complete all your extension ...
From £86,816
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,112
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,112
Diligence Builders are a skilled professional construction team who can undertake a wide range of building services from new builds and extensions ...
From £86,832
G C Builders is an established and experienced local extension builder in BN44. Please contact us for a free, no obligation quote and competitive r...
From £87,136
At PBS Build it Better we have been providing building services to customers in Brighton & Hove and throughout Sussex for over 40 years. As experie...
From £86,936
ACF Carpentry Ltd is an established and experienced local extension builder in BN44. Please contact us for a free, no obligation quote and competit...
From £86,800
Trusted and professional extension builder in BN44. Experienced in all extension buildering work and keeping within budget and on quote. Nutshell C...
From £87,016
F&N DESIGN & BUILD LTD are here to help customers who need an Extension Builder in BN44. We offer a competitive rate to complete all your extension...

Building a granny annexe ranges from £86,800 (Nutshell Construction based in BN14) to £87,192 (Woodmans Construction based in BN43), 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 BN44 by posting a job with HaMuch. We will send it to extension builders in BN44 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Lancing | £37 | £251 |
| Granny Annexe near Shoreham-by-Sea | £36 | £250 |
| Granny Annexe near Worthing | £35 | £251 |
| Granny Annexe near Rustington | £36 | £246 |
| Granny Annexe near Brighton | £35 | £251 |
| Granny Annexe near Brighton and Hove | £35 | £251 |
| Granny Annexe near Burgess Hill | £36 | £240 |
| Granny Annexe near Littlehampton | £35 | £244 |
| Granny Annexe near Horsham | £38 | £265 |
| Granny Annexe near Arun | £35 | £241 |
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 - £17,494

Two storey extension - £87,992

Build a timber frame extension - £25,994

Build a swimming pool - £80,994

Single storey extension - £54,888

Side return extension - £41,437

Install an RSJ - £2,194

Outbuilding - £9,994

Build a Mansard loft conversion - £51,994

Loft conversion - £33,698

Build a kitchen extension - £41,994

Hip to gable loft conversion - £41,994

Granny annexe - £86,994

Garden office - £9,994

Convert a Garage - £15,994

Garage - £18,494

Build a flat roof extension - £21,994

Build a dormer loft conversion - £41,994

Concrete foundations - £6,244

Convert a bungalow loft - £28,994

Convert a basement - £37,437