Build additional living space on your property in E18

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 E18? To see prices and availability for your job click Get quotes.

HaMuch is Excellent

Granny annexe cost in E18 - Sort by rates or availability

From £87,224

(last active 22/09/26)
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S Cooke Building Services

Stuart Cooke

S Cooke Building Services is an established and experienced local extension builder in E18. Please contact us for a free, no obligation quote and c...

From £87,368

(last active 01/09/26)
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ASV Development Ltd

ASV Development Ltd are here to help customers who need an Extension Builder in E18. We offer a competitive rate to complete all your extension bui...

From £87,152

(last active 13/08/26)
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UK Drywall Ltd

UK Drywall Ltd is an established and experienced local extension builder in E18. Please contact us for a free, no obligation quote and competitive ...

From £86,872

(last active 13/08/26)
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Dragan Building Construction

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

Dragan Building Construction provides a local, trusted e...

From £88,312

(last active 25/07/26)
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Iservices-uk.org

Ilirjan Sheqja

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

From £87,256

(last active 10/06/26)
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KJ Darby Building Contracts Ltd

KJ Darby Building Contracts Ltd is an established and experienced local extension builder in E18. Please contact us for a free, no obligation quote...

From £87,128

(last active 10/06/26)
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Expert Crew Ltd

Expert Crew Ltd is an established and experienced local extension builder in E18. Please contact us for a free, no obligation quote and competitive...

From £86,920

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CHRIS BUILDER

CHRIS BUILDER is an established and experienced local extension builder in E18. Please contact us for a free, no obligation quote and competitive r...

From £87,384

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Concept Building Solutions

Concept Building Solutions is a trusted extension builder serving customers in E18 and the surrounding area. Contact us to today to get a competiti...

From £86,872

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M & D BUILDING & DECORATING

M & D BUILDING & DECORATING are here to help customers who need an Extension Builder in E18. We offer a competitive rate to complete all your exten...

Granny Annexe Cost in E18

Estimates for granny annexe near E18

Building a granny annexe ranges from £86,872 (Dragan Building Construction based in E10) to £88,312 (Iservices-uk.org based in E17), 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 E18 by posting a job with HaMuch. We will send it to extension builders in E18 who will be happy to help you.

"Granny annexe" - REDBRIDGE, job posted 10/01/25


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Estimates for common extension builder jobs in E18;

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.

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