From £86,664
Relax... you have found a reliable extension builder in Birkby. Walkden Bricklaying is a friendly and reliable company based in Birkby who consider...
From £86,728
iConstruction are here to help customers who need an Extension Builder in Birkby. We offer a competitive rate to complete all your extension builde...
From £87,008
Paul Brook Quality Builder is a trusted extension builder serving customers in Birkby and the surrounding area. Contact us to today to get a compet...
From £86,816
SJL Construction is a trusted extension builder serving customers in Birkby and the surrounding area. Contact us to today to get a competitive quot...
From £86,936
Need an Extension Builder in Birkby? Paragon Oak Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many ...
From £87,064
Experienced extension builder ready to quote for your work. west yorkshire plumbing and heating services ltd is the best extension builder in Birkb...
From £87,312
Jones Masonry Ltd is a trusted extension builder serving customers in Birkby and the surrounding area. Contact us to today to get a competitive quo...
From £86,608
Relax... you have found a reliable extension builder in Birkby. Conroy Brook Group is a friendly and reliable company based in Birkby who consider ...
From £86,816
Trusted and professional extension builder in Birkby. Experienced in all extension buildering work and keeping within budget and on quote. J P McDo...
From £86,936
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Building a granny annexe ranges from £86,608 (Conroy Brook Group based in HD9) to £87,312 (Jones Masonry Ltd based in BD19), 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 Birkby by posting a job with HaMuch. We will send it to extension builders in Birkby who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Huddersfield | £29 | £224 |
| Granny Annexe near Brighouse | £30 | £230 |
| Granny Annexe near Mirfield | £31 | £236 |
| Granny Annexe near Kirklees | £30 | £231 |
| Granny Annexe near Halifax | £32 | £243 |
| Granny Annexe near Holmfirth | £30 | £232 |
| Granny Annexe near Dewsbury | £33 | £245 |
| Granny Annexe near Batley | £32 | £239 |
| Granny Annexe near Ossett | £33 | £245 |
| Granny Annexe near Bradford | £29 | £224 |
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 - £17,389

Two storey extension - £87,833

Build a timber frame extension - £25,889

Build a swimming pool - £80,889

Single storey extension - £52,776

Side return extension - £40,249

Install an RSJ - £2,089

Outbuilding - £9,889

Build a Mansard loft conversion - £51,889

Loft conversion - £32,708

Build a kitchen extension - £41,889

Hip to gable loft conversion - £41,889

Granny annexe - £86,889

Garden office - £9,889

Convert a Garage - £15,889

Garage - £18,389

Build a flat roof extension - £21,889

Build a dormer loft conversion - £41,889

Concrete foundations - £6,139

Convert a bungalow loft - £28,889

Convert a basement - £36,249