Build additional living space on your property in Seven Kings

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

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From £87,120

Rates verified Oct 26
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SDS Constructions

Sean Smithers

Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...

From £86,880

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Can design and Construction

Erald Kanani

Member since August 2025

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

From £87,224

Last active Nov 26
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Gems Building & Maintenance Services

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

From £87,240

Last active Nov 26
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PHOENIX DEVELOPMNTS LONDON LTD

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

From £87,712

Last active Nov 26
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Render

Experienced extension builder ready to quote for your work. Render is the best extension builder in Seven Kings. No obligation free quotes and many...

From £87,328

Last active Nov 26
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Tony Rutter

Need an Extension Builder in Seven Kings? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many...

From £87,400

Last active Nov 26
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Decorating Building Service

Decorating Building Service are here to help customers who need an Extension Builder in Seven Kings. We offer a competitive rate to complete all yo...

From £87,272

Last active Nov 26
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Kunshi Services UK Ltd

Kunshi Services UK Ltd is a trusted extension builder serving customers in Seven Kings and the surrounding area. Contact us to today to get a compe...

From £87,176

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Fedora and sons Ltd

MIHAI Martolea

Member since September 2026

Fedora and sons Ltd is a trusted extension builder serving customers in Seven Kings and the surrounding area. Contact us to today to get a competit...

From £86,416

Last active Oct 26
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RTC Plumbers

Shaik Jamal

Welcome to RTC Plumbers! With over 15 years of experience, we offer a range of plumbing services from simple repairs to complex installations, each...

Granny Annexe Cost in Seven Kings

Estimates for granny annexe near Seven Kings

Building a granny annexe ranges from £86,416 (RTC Plumbers based in RM6) to £87,712 (Render based in IG1), 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 Seven Kings by posting a job with HaMuch. We will send it to extension builders in Seven Kings who will be happy to help you.


Estimates for common extension builder jobs in Seven Kings;

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...