Cost to build a granny annexe in Barnehurst

Granny Annexe Cost in Barnehurst

Estimates for granny annexe near Barnehurst

Building a granny annexe ranges from £87,000 (Self employer based in DA15) to £87,616 (HOUSE BUILDING SERVICES LIMITED based in DA16), 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 Barnehurst by posting a job with HaMuch. We will send it to extension builders in Barnehurst who will be happy to help you.

"Granny annexe" - BEXLEYHEATH, job posted 10/07/25

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Estimates for common extension builder jobs in Barnehurst;

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.