Build additional living space on your property in SG5

A granny annexe is the ideal solution for offering a young family member their own space in your home while they save up for their own house, or to help an older relative have some independence while keeping them at a safe distance. But how much do they cost to build in SG5?

Granny annexe cost in SG5 - Sort by rates or availability

Space Above Limited

From £87,232

(last active 23/09/26)

If you are looking for a SG5 extension builder and you need something replaced, fitted, or fixed, contact Space Above Limited today. We are competi...

RS Plumbing and Heating

From £87,248

(last active 21/09/26)

RS Plumbing and Heating is a trusted extension builder serving customers in SG5 and the surrounding area. Contact us to today to get a competitive ...

Bench Mark Construction

From £87,448

(last active 21/09/26)

Relax... you have found a reliable extension builder in SG5. Bench Mark Construction is a friendly and reliable company based in SG5 who consider n...

A M Interiors

From £87,808

(last active 21/09/26)

Need to find an Extension Builder near you for all your extension buildering work?

A M Interiors provides a local, trusted extension builde...

EB Construction & Building Ltd

From £87,000

Member since July 2020

EB Construction & Building Ltd are here to help customers who need an Extension Builder in SG5. We offer a competitive rate to complete all your ex...

Peter's Gutters

From £87,344

(last active 20/09/26)

Trusted and professional extension builder in SG5. Experienced in all extension buildering work and keeping within budget and on quote. Peter's Gut...

Bacan's cleaning painting and decorating

From £86,936

(last active 19/09/26)

Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..

Greystone Roofing & Building

From £87,320

(last active 01/09/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

A J S Building Work

From £87,224

(last active 31/08/26)

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Go-Large Design & Build Ltd

From £87,088

(last active 31/08/26)

Need to find an Extension Builder near you for all your extension buildering work?

Go-Large Design & Build Ltd provides a local, trusted ex...

Granny Annexe Cost in SG5

Estimates for granny annexe near SG5

Building a granny annexe ranges from £86,936 (Bacan's cleaning painting and decorating based in LU1) to £87,808 (A M Interiors based in MK42), 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 SG5 by posting a job with HaMuch. We will send it to extension builders in SG5 who will be happy to help you.


Get extension builder rates instantly

Estimates for common extension builder jobs in SG5;

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.

More extensions & conversions cost guides...