Build additional living space on your property in TW14

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 TW14?

Granny annexe cost in TW14 - Sort by rates or availability

J&J Building Solutions

From £87,048

(rates verified 18/09/26)

Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in TW14. No obligation free quotes...

Get quotes

1 review

Torrington

From £87,192

(last active 02/10/26)

NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...

"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO

SH Enterprise

From £87,024

(last active 02/10/26)

Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...

T M Builder

From £87,312

(last active 02/10/26)

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

Samuele Paolini

From £87,392

(last active 01/10/26)

Need an Extension Builder in TW14? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...

ABC Associates STRUCTURES 4 U

From £87,280

Member since August 2026

Relax... you have found a reliable extension builder in TW14. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in TW14 who co...

VA Structures

From £87,192

(last active 01/10/26)

Need an Extension Builder in TW14? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs for many year...

DC Build & Pave

From £87,280

(last active 01/10/26)

Trusted and professional extension builder in TW14. Experienced in all extension buildering work and keeping within budget and on quote. DC Build &...

DP Services

From £87,432

(last active 01/10/26)

DP Services is a fully insured friendly local company which has been trading since 2002 and delivers high quality building work in domestic extensi...

Ali & Sons Builders

From £87,152

(last active 01/10/26)

I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...

Granny Annexe Cost in TW14

Estimates for granny annexe near TW14

Building a granny annexe ranges from £87,024 (SH Enterprise based in EC1V) to £87,432 (DP Services based in RG41), 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 TW14 by posting a job with HaMuch. We will send it to extension builders in TW14 who will be happy to help you.


Get extension builder rates instantly

Estimates for common extension builder jobs in TW14;

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...