Build additional living space on your property in Steyning

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

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From £87,024

Rates verified Oct 26
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Ferguson Building Services Limited

Ferguson Building Services Limited is an established and experienced local extension builder in Steyning. Please contact us for a free, no obligati...

From £87,200

Last active Nov 26
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Alan Pacy Builder

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

From £86,880

Last active Nov 26
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Stretch My Home Ltd

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

From £86,984

Last active Oct 26
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FIRST FORMAT BUILDING

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

FIRST FORMAT BUILDING provides a local, trusted extensio...

From £86,992

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H P Building Services Sussex

Member since August 2026

H P Building Services Sussex is a one-stop solution for all your extension buildering needs. Establish over 10 years ago and covering 20 miles arou...

From £87,296

Last active Oct 26
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Proper Copper Design

Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...

From £87,016

Last active Sep 26
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Good Construction (Sussex) Limited

Trusted and professional extension builder in Steyning. Experienced in all extension buildering work and keeping within budget and on quote. Good C...

From £86,936

Last active May 26
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ACF Carpentry Ltd

ACF Carpentry Ltd is an established and experienced local extension builder in Steyning. Please contact us for a free, no obligation quote and comp...

From £87,224

Last active Mar 26
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Hewison Jones Renovations LTD

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

From £86,960

Last active Mar 26
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BRICKTEC BUILDING SERVICES

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

Granny Annexe Cost in Steyning

Estimates for granny annexe near Steyning

Building a granny annexe ranges from £86,880 (Stretch My Home Ltd based in BN12) to £87,296 (Proper Copper Design based in BN3), 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 Steyning by posting a job with HaMuch. We will send it to extension builders in Steyning 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 Lancing£36£249
Granny Annexe near Shoreham-by-Sea£36£250
Granny Annexe near Worthing£35£249
Granny Annexe near Rustington£35£242
Granny Annexe near Brighton£35£253
Granny Annexe near Brighton and Hove£35£252
Granny Annexe near Burgess Hill£36£256
Granny Annexe near Littlehampton£35£241
Granny Annexe near Horsham£38£265
Granny Annexe near Arun£35£241

Estimates for common extension builder jobs in Steyning;

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...