From £86,968
Relax... you have found a reliable extension builder in Rothwell. Basement Structures LTD is a friendly and reliable company based in Rothwell who ...
From £86,824
Relax... you have found a reliable extension builder in Rothwell. Foundation Building Services is a friendly and reliable company based in Rothwell...
From £86,808
Trusted and professional extension builder in Rothwell. Experienced in all extension buildering work and keeping within budget and on quote. NE BUI...
From £86,584
Experienced extension builder ready to quote for your work. Noble Homes is the best extension builder in Rothwell. No obligation free quotes and ma...
From £86,696
D Noble Limited Building And Civil Engineering Contracts is an established extension buildering business in Rothwell. We come highly recommended an...
From £87,088
The Yorkshire Lime Company Ltd is an established and experienced local extension builder in Rothwell. Please contact us for a free, no obligation q...
From £86,936
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £86,632
Trusted and professional extension builder in Rothwell. Experienced in all extension buildering work and keeping within budget and on quote. Fearnv...
From £86,616
Relax... you have found a reliable extension builder in Rothwell. Hozman Design & Joinery is a friendly and reliable company based in Rothwell who ...

Building a granny annexe ranges from £86,584 (Noble Homes based in WF10) to £87,088 (The Yorkshire Lime Company Ltd based in WF10), 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 Rothwell by posting a job with HaMuch. We will send it to extension builders in Rothwell who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Rothwell | £30 | £230 |
| Granny Annexe near Normanton | £30 | £233 |
| Granny Annexe near Beeston | £31 | £236 |
| Granny Annexe near Castleford | £30 | £225 |
| Granny Annexe near Leeds | £31 | £236 |
| Granny Annexe near Wakefield | £31 | £240 |
| Granny Annexe near Chapeltown | £30 | £232 |
| Granny Annexe near Morley | £31 | £239 |
| Granny Annexe near Ossett | £33 | £245 |
| Granny Annexe near Pontefract | £30 | £228 |
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 - £17,310

Two storey extension - £87,716

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,208

Side return extension - £39,367

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,973

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,367