Build additional living space on your property in Owlthorpe

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 Owlthorpe?

Granny annexe cost in Owlthorpe - Sort by rates or availability

From £86,984
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BP Builders

(last active 03/10/26)

BP Builders are here to help customers who need an Extension Builder in Owlthorpe. We offer a competitive rate to complete all your extension build...

From £87,088
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Hallamshire Paving

(last active 03/10/26)

Hallamshire Paving is an established and experienced local extension builder in Owlthorpe. Please contact us for a free, no obligation quote and co...

From £87,256
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Woodtec Joinery

(last active 03/10/26)

Woodtec Joinery is an established extension buildering business in Owlthorpe. We come highly recommended and provide competitive quotes for your wo...

From £87,344
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AMB Joinery & Building Services

(last active 03/10/26)

Trusted and professional extension builder in Owlthorpe. Experienced in all extension buildering work and keeping within budget and on quote. AMB J...

From £87,008
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A Field Construction LTD

(last active 02/10/26)

We are a family run business with 20 years experience.

We take great care and attention to the work we carry out and pride ourselves on ...

From £86,992
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A B Building Roofing Services

(last active 01/10/26)

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

A B Building Roofing Services provides a local, trusted ...

From £86,968
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CS Construction & Conversions

(last active 29/09/26)

Relax... you have found a reliable extension builder in Owlthorpe. CS Construction & Conversions is a friendly and reliable company based in Owltho...

From £86,936
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Merebrook Construction Ltd

(last active 08/09/26)

Trusted and professional extension builder in Owlthorpe. Experienced in all extension buildering work and keeping within budget and on quote. Mereb...

From £86,936
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Dore Decor

(last active 08/09/26)

Dore Decor are a family run business with over 30 years experience - we offer an extensive range of building services and are able to provide a ful...

From £86,288
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JON WINDLE CONSTRUCTION

(last active 08/09/26)

46 years in the trade

Granny Annexe Cost in Owlthorpe

Estimates for granny annexe near Owlthorpe

Building a granny annexe ranges from £86,288 (JON WINDLE CONSTRUCTION based in S17) to £87,344 (AMB Joinery & Building Services based in S8), 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 Owlthorpe by posting a job with HaMuch. We will send it to extension builders in Owlthorpe who will be happy to help you.


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Estimates for common extension builder jobs in Owlthorpe;

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...