Build additional living space on your property in HA3

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 HA3? To see prices and availability for your job click green button.

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From £87,112

Last active Nov 26
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JJSR Construction Ltd

J Wijayamohan

JJSR Construction Ltd is an established and experienced local extension builder in HA3. Please contact us for a free, no obligation quote and compe...

From £87,096

Last active Oct 26
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RLC Construction

RLC Construction are here to help customers who need an Extension Builder in HA3. We offer a competitive rate to complete all your extension builde...

From £87,072

Last active Oct 26
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Chrysalis

Location

Wealdstone, HA3

Chrysalis are here to help customers who need an Extension Builder in HA3. We offer a competitive rate to complete all your extension buildering jo...

From £87,160

Last active Oct 26
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PERFORMA CONSTRUCTION LIMITED

Relax... you have found a reliable extension builder in HA3. PERFORMA CONSTRUCTION LIMITED is a friendly and reliable company based in HA3 who cons...

From £87,224

Last active Oct 26
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Volton Building & Paving

Volton Building & Paving is a trusted extension builder serving customers in HA3 and the surrounding area. Contact us to today to get a competitive...

From £87,432

Last active Oct 26
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Platinum Premier Projects & Premier Electrics

Platinum Electrics is a Branch off Platinum Premier Projects who deal in all types of construction projects. Platinum Electrics are based in London...

From £87,160

Last active Jul 26
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BR Building Services Limited

BR Building Services Limited is a trusted extension builder serving customers in HA3 and the surrounding area. Contact us to today to get a competi...

From £86,952

Last active Jul 26
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A D C BUILDERS

Trusted and professional extension builder in HA3. Experienced in all extension buildering work and keeping within budget and on quote. A D C BUILD...

From £87,000

Last active Jul 26
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EUROCONTRACTOR LIMITED

Karsan Dabasia

Location

Harrow, HA3

Trusted and professional extension builder in HA3. Experienced in all extension buildering work and keeping within budget and on quote. EUROCONTRAC...

From £86,984

Last active Jul 26
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Stamp Design & Build Ltd

Stamp Design & Build Ltd is a trusted extension builder serving customers in HA3 and the surrounding area. Contact us to today to get a competitive...

Granny Annexe Cost in HA3

Estimates for granny annexe near HA3

Building a granny annexe ranges from £86,952 (A D C BUILDERS based in HA1) to £87,432 (Platinum Premier Projects & Premier Electrics based in HA7), 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 HA3 by posting a job with HaMuch. We will send it to extension builders in HA3 who will be happy to help you.


Estimates for common extension builder jobs in HA3;

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...