Build additional living space on your property in St Helens

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 St Helens? To see prices and availability for your job click green button.

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From £86,824

Last active Oct 26
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Warrington Builders

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

From £86,672

Last active Oct 26
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Fixit Cheshire

Fixit Cheshire is an established and experienced local extension builder in St Helens. Please contact us for a free, no obligation quote and compet...

From £86,664

Last active Oct 26
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KMC Brickwork

Need an Extension Builder in St Helens? KMC Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for many...

From £86,608

Last active Oct 26
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M L R Building Services

Mark Robinson

Trusted and professional extension builder in St Helens. Experienced in all extension buildering work and keeping within budget and on quote. M L R...

From £86,872

Last active Oct 26
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G. Finnigan Builders

G. Finnigan Builders is an established extension buildering business in St Helens. We come highly recommended and provide competitive quotes for yo...

From £86,600

Last active Oct 26
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SPL Building Services

Stephen Lowe

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

From £86,776

Last active Oct 26
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Jc Properties

Relax... you have found a reliable extension builder in St Helens. Jc Properties is a friendly and reliable company based in St Helens who consider...

From £86,936

Last active Oct 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 St Helens. No obligation free ...

From £86,552

Last active Oct 26
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Liverpool Builder

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

From £86,704

Last active Oct 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...

Granny Annexe Cost in St Helens

Estimates for granny annexe near St Helens

Building a granny annexe ranges from £86,552 (Liverpool Builder based in L12) to £86,936 (P & P Building Services based in L11), 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 St Helens by posting a job with HaMuch. We will send it to extension builders in St Helens who will be happy to help you.


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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Granny Annexe near St Helens£31£224
Granny Annexe near Prescot£31£223
Granny Annexe near Knowsley£31£222
Granny Annexe near Newton-le-Willows£31£221
Granny Annexe near Huyton with Roby£31£225
Granny Annexe near Ashton-in-Makerfield£30£220
Granny Annexe near Widnes£31£220
Granny Annexe near Golborne£30£222
Granny Annexe near Orrell£29£214
Granny Annexe near Kirkby£31£224

Estimates for common extension builder jobs in St Helens;

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...