From £87,312
Local Boiler Plumbing & Heating Services is an established and experienced local extension builder in SS11. Please contact us for a free, no obliga...
From £87,312
skilled worker who specializes in completing a wide range of building and renovation projects
From £87,240
M&J Brickwork Ltd are a Chelmsford based Bricklaying & General Building company that operate throughout the Essex and South London...
From £86,968
B J CULLEN BUILDERS are here to help customers who need an Extension Builder in SS11. We offer a competitive rate to complete all your extension bu...
From £87,032
Relax... you have found a reliable extension builder in SS11. Major Building Contractors Ltd is a friendly and reliable company based in SS11 who c...
From £87,712
Experienced extension builder ready to quote for your work. Render is the best extension builder in SS11. No obligation free quotes and many happy ...
From £88,232
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
From £87,032
M & S Builders is a trusted extension builder serving customers in SS11 and the surrounding area. Contact us to today to get a competitive quote fo...
From £86,416
Welcome to RTC Plumbers! With over 15 years of experience, we offer a range of plumbing services from simple repairs to complex installations, each...
From £87,400
Decorating Building Service are here to help customers who need an Extension Builder in SS11. We offer a competitive rate to complete all your exte...

Building a granny annexe ranges from £86,416 (RTC Plumbers based in RM6) to £88,232 (Optimus Build Solutions based in Rm1), 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 SS11 by posting a job with HaMuch. We will send it to extension builders in SS11 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Wickford | £39 | £255 |
| Granny Annexe near Basildon | £39 | £251 |
| Granny Annexe near Rayleigh | £39 | £252 |
| Granny Annexe near Billericay | £38 | £248 |
| Granny Annexe near Thundersley | £38 | £251 |
| Granny Annexe near Canvey Island | £39 | £256 |
| Granny Annexe near Stanford-le-Hope | £40 | £254 |
| Granny Annexe near Brentwood | £39 | £255 |
| Granny Annexe near Southend-on-Sea | £37 | £247 |
| Granny Annexe near Chelmsford | £38 | £258 |
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 - £17,766

Two storey extension - £88,398

Build a timber frame extension - £26,266

Build a swimming pool - £81,266

Single storey extension - £60,312

Side return extension - £44,488

Install an RSJ - £2,466

Outbuilding - £10,266

Build a Mansard loft conversion - £52,266

Loft conversion - £36,240

Build a kitchen extension - £42,266

Hip to gable loft conversion - £42,266

Granny annexe - £87,266

Garden office - £10,266

Convert a Garage - £16,266

Garage - £18,766

Build a flat roof extension - £22,266

Build a dormer loft conversion - £42,266

Concrete foundations - £6,516

Convert a bungalow loft - £29,266

Convert a basement - £40,488