Build additional living space on your property in North Watford

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 North Watford?

Granny annexe cost in North Watford - Sort by rates or availability

1 review

Torrington

From £87,192

(last active 01/10/26)

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

Samuele Paolini

From £87,392

(last active 01/10/26)

Need an Extension Builder in North Watford? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs fo...

ABC Associates STRUCTURES 4 U

From £87,280

Member since August 2026

Relax... you have found a reliable extension builder in North Watford. ABC Associates STRUCTURES 4 U is a friendly and reliable company based in No...

VA Structures

From £87,192

(last active 01/10/26)

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

DC Build & Pave

From £87,280

(last active 01/10/26)

Trusted and professional extension builder in North Watford. Experienced in all extension buildering work and keeping within budget and on quote. D...

T M Builder

From £87,312

(last active 01/10/26)

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

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...

The Diamond Property Service Ltd

From £87,304

(last active 01/10/26)

Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...

LALI BUILDERS

From £87,424

(last active 30/09/26)

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

Nisup Building Services

From £86,920

(last active 30/09/26)

NISUP BUILDING SERVICES Company specializes in the domestic and commercial building industry :1. Refurbishm...

Granny Annexe Cost in North Watford

Estimates for granny annexe near North Watford

Building a granny annexe ranges from £86,920 (Nisup Building Services based in HA8) to £87,424 (LALI BUILDERS based in NW10), 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 North Watford by posting a job with HaMuch. We will send it to extension builders in North Watford who will be happy to help you.


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Location in UKHourly RateDaily Rate
Granny Annexe near Watford£43£278
Granny Annexe near Bushey£42£276
Granny Annexe near Rickmansworth£42£278
Granny Annexe near Borehamwood£42£270
Granny Annexe near St Albans£63£288
Granny Annexe near Dacorum£42£269
Granny Annexe near Harrow£43£271
Granny Annexe near Hemel Hempstead£42£270
Granny Annexe near Gerrards Cross£43£282
Granny Annexe near Hillingdon£63£276

Estimates for common extension builder jobs in North Watford;

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.

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