Build additional living space on your property in Windsor & Maidenhead

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 Windsor & Maidenhead? To see prices and availability for your job click green button.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL Windsor & Maidenhead extension builders

Compare quotes

Compare quotes

Available extension builders in Windsor & Maidenhead reply

Save Money

Save Money

Select your affordable Windsor & Maidenhead extension builder

Post your job

From £86,920

Rates updated Oct 26
Get quotes

Lp Townsend Brickwork

Lee Townsend

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

Lp Townsend Brickwork provides a local, trusted extensio...

From £87,088

Last active Nov 26
Get quotes

B.A Ruffle Building Contractor

B.A Ruffle Building Contractor is an established extension buildering business in Windsor & Maidenhead. We come highly recommended and provide comp...

From £87,312

Last active Oct 26
Get quotes

Luxuria Property Ltd

From 2007 – 2015 David Rudelhoff (Founder and Director) was the Property Manager for a high profile, high net worth family. During that time, in ...

From £87,136

Last active Oct 26
Get quotes

A L King Services

Experienced extension builder ready to quote for your work. A L King Services is the best extension builder in Windsor & Maidenhead. No obligation ...

From £87,472

Last active Oct 26
Get quotes

ASAP Roofing & Exterior Maintenance

ASAP Roofing & Exterior Maintenance is a trusted extension builder serving customers in Windsor & Maidenhead and the surrounding area. Contact us t...

From £87,224

Last active Oct 26
Get quotes

A South View

Experienced extension builder ready to quote for your work. A South View is the best extension builder in Windsor & Maidenhead. No obligation free ...

From £87,360

Last active Oct 26
Get quotes

Ani Mokashi

Ani Mokashi is an established and experienced local extension builder in Windsor & Maidenhead. Please contact us for a free, no obligation quote an...

From £86,984

Last active Oct 26
Get quotes

NICE BUILD

Experienced extension builder ready to quote for your work. NICE BUILD is the best extension builder in Windsor & Maidenhead. No obligation free qu...

From £87,440

Last active Oct 26
Get quotes

GDC Design & Build

Lead by designer Richard Gordon, GDC is a London and Berkshire based Design & Build firm with a vast amount of experience in both the residential a...

From £86,952

Last active Oct 26
Get quotes

Dub Solutions

Dub Solutions is a trusted extension builder serving customers in Windsor & Maidenhead and the surrounding area. Contact us to today to get a compe...

Granny Annexe Cost in Windsor & Maidenhead

Estimates for granny annexe near Windsor & Maidenhead

Building a granny annexe ranges from £86,920 (Lp Townsend Brickwork based in SL2) to £87,472 (ASAP Roofing & Exterior Maintenance based in SL5), 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 Windsor & Maidenhead by posting a job with HaMuch. We will send it to extension builders in Windsor & Maidenhead 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 Windsor & Maidenhead£42£272
Granny Annexe near Windsor£41£271
Granny Annexe near Slough£42£272
Granny Annexe near Egham£42£266
Granny Annexe near Staines-upon-Thames£42£269
Granny Annexe near Maidenhead£41£273
Granny Annexe near Ascot£41£276
Granny Annexe near Bracknell Forest£40£270
Granny Annexe near Bracknell£40£269
Granny Annexe near Hillingdon£43£276

Estimates for common extension builder jobs in Windsor & Maidenhead;

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...