Build additional living space on your property in Harpenden

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

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From £87,344

Last active Oct 26
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Peter's Gutters

Peter Rourke

Location

Harpenden, AL5

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

From £86,936

Last active Oct 26
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Bacan's cleaning painting and decorating

Elena nuta Radu

Plumbing, painting exterior, interior, extensions, plastering, skiming, carpeting, Flooring, you can ask us ..

From £87,344

Last active Oct 26
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Greg-Bud

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

Greg-Bud provides a local, trusted extension buildering ...

From £87,272

Last active Oct 26
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Top Notch Tradesmen

Top Notch Tradesmen is an established and experienced local extension builder in Harpenden. Please contact us for a free, no obligation quote and c...

From £87,456

Last active Oct 26
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A.J Builders

A.J Builders is an established and experienced local extension builder in Harpenden. Please contact us for a free, no obligation quote and competit...

From £86,968

Last active Oct 26
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A S G Developments - Herts LTD

Amarjeet Gill

Architecture and Construction all in one place. 

FREE DRAWINGS for all projects we build. 

From £87,232

Last active Oct 26
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Buyerz Trading

Buyerz Trading is an established and experienced local extension builder in Harpenden. Please contact us for a free, no obligation quote and compet...

From £87,536

Last active Oct 26
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R. Newman Construction

Are you looking for resin driveways in North London? We are a leading builder of driveways and patios in North London. We have expertise in various...

From £87,440

Last active Oct 26
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IC Builders

IC Builders have been helping customers in St Albans and the surrounding area by providing professional, trustworthy building services.We k...

From £87,072

Last active Oct 26
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A1 Home Care Building Maintenance

A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in Harpenden. We offer a competitive rate to complete al...

Granny Annexe Cost in Harpenden

Estimates for granny annexe near Harpenden

Building a granny annexe ranges from £86,936 (Bacan's cleaning painting and decorating based in LU1) to £87,536 (R. Newman Construction based in AL4), 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 Harpenden by posting a job with HaMuch. We will send it to extension builders in Harpenden 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 Harpenden£45£282
Granny Annexe near St Albans£43£272
Granny Annexe near Luton£42£279
Granny Annexe near Hatfield£42£266
Granny Annexe near Hemel Hempstead£43£276
Granny Annexe near Welwyn Garden City£42£269
Granny Annexe near Dacorum£42£275
Granny Annexe near Hitchin£43£283
Granny Annexe near Dunstable£41£274
Granny Annexe near Stevenage£44£282

Estimates for common extension builder jobs in Harpenden;

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...