Build additional living space on your property in BL6

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 BL6?

Granny annexe cost in BL6 - Sort by rates or availability

From £86,472

(last active 05/10/26)
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Jones Landscaping

Trusted and professional extension builder in BL6. Experienced in all extension buildering work and keeping within budget and on quote. Jones Lands...

From £86,936

(last active 05/10/26)
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P & P Building Services

Peter Gallagher

Experienced extension builder ready to quote for your work. P & P Building Services is the best extension builder in BL6. No obligation free quotes...

From £86,552

(last active 02/10/26)
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Liverpool Builder

Liverpool Builder is an established extension buildering business in BL6. We come highly recommended and provide competitive quotes for your work.<...

From £86,704

(last active 02/10/26)
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Render & External Insulation Specialist

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

From £86,768

(last active 02/10/26)
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KM Building Services

Relax... you have found a reliable extension builder in BL6. KM Building Services is a friendly and reliable company based in BL6 who consider no j...

From £85,960

(last active 24/09/26)
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Aquatec Builder

Paul Foran

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

From £86,656

(last active 23/09/26)
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Renovasion badrom

Sasho Mitev

Hello So we do not work and almost any work and it works very well and qualitatively If you are interested we can work in the future

From £86,776

(last active 22/09/26)
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David Anderson Builders

Relax... you have found a reliable extension builder in BL6. David Anderson Builders is a friendly and reliable company based in BL6 who consider n...

From £86,792

(last active 22/09/26)
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DC Contractors

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

DC Contractors provides a local, trusted extension build...

From £86,960

(last active 22/09/26)
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ESBP Specialists Ltd

Jonathan

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

ESBP Specialists Ltd provides a local, trusted extension...

Granny Annexe Cost in BL6

Estimates for granny annexe near BL6

Building a granny annexe ranges from £85,960 (Aquatec Builder based in OL10) to £86,960 (ESBP Specialists Ltd based in M26), 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 BL6 by posting a job with HaMuch. We will send it to extension builders in BL6 who will be happy to help you.


Get extension builder rates instantly

Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Granny Annexe near Horwich£30£219
Granny Annexe near Westhoughton£31£222
Granny Annexe near Hindley£30£219
Granny Annexe near Bolton£31£219
Granny Annexe near Atherton£31£223
Granny Annexe near Wigan£30£220
Granny Annexe near Chorley£30£221
Granny Annexe near Little Hulton£30£220
Granny Annexe near Farnworth£30£219
Granny Annexe near Leigh£31£224

Estimates for common extension builder jobs in BL6;

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...