From £87,040
Moorfields Eye Hospital, EC1V
TOP CONSTRUCTION is an established extension buildering business in EC1V. We come highly recommended and provide competitive quotes for your work.<...
From £87,128
Fornia Build Ltd is an established and experienced local extension builder in EC1V. Please contact us for a free, no obligation quote and competiti...
From £87,528
Greater London, EC1V
Bring your vision to life with Fornia build. Our main aim is to design and build exceptional residential properties in prime locations, to the high...
From £87,096
Our family-run building services company Dual City Building Contractors Limited has over 30 years’ experience in the industry. We have been helpi...
From £87,368
Londonderry, EC1V
Need to find an Extension Builder near you for all your extension buildering work?
Alkemist Build and Decorate provides a local, trusted ex...
From £87,400
Need an Extension Builder in EC1V? Cadway Group Ltd has been helping local clients (5 mile radius) with their extension buildering jobs for many ye...
From £87,128
Greater London, EC1V
Master Build Team is an established extension buildering business in EC1V. We come highly recommended and provide competitive quotes for your work....
From £86,960
Relax... you have found a reliable extension builder in EC1V. MM Construction Group is a friendly and reliable company based in EC1V who consider n...
From £86,920
Greater London, EC1V
Relax... you have found a reliable extension builder in EC1V. Redway Construction is a friendly and reliable company based in EC1V who consider no ...
From £87,408
The team at Master Build Team have over 10 years’ experience working in the buildings and restoration industry. In that time, we have helped coun...

Building a granny annexe ranges from £86,920 (Redway Construction based in EC1V) to £87,528 (Fornia Build Ltd based in EC1V), 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 EC1V by posting a job with HaMuch. We will send it to extension builders in EC1V who will be happy to help you.
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.

Underpin a building - £17,698

Two storey extension - £88,296

Build a timber frame extension - £26,198

Build a swimming pool - £81,198

Single storey extension - £58,952

Side return extension - £43,723

Install an RSJ - £2,398

Outbuilding - £10,198

Build a Mansard loft conversion - £52,198

Loft conversion - £35,603

Build a kitchen extension - £42,198

Hip to gable loft conversion - £42,198

Granny annexe - £87,198

Garden office - £10,198

Convert a Garage - £16,198

Garage - £18,698

Build a flat roof extension - £22,198

Build a dormer loft conversion - £42,198

Concrete foundations - £6,448

Convert a bungalow loft - £29,198

Convert a basement - £39,723