From £86,896
Deanestor Limited is an established extension buildering business in NG21. We come highly recommended and provide competitive quotes for your work....
From £86,936
Need to find an Extension Builder near you for all your extension buildering work?
Dave Tideswell Builder Renovations provides a local, tru...
From £86,952
Need an Extension Builder in NG21? BRS BUILDERS has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £86,992
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,176
A Thompson Joinery & Building is a trusted extension builder serving customers in NG21 and the surrounding area. Contact us to today to get a compe...
From £87,240
Experienced extension builder ready to quote for your work. Refresh Renovations - North Nottinghamshire is the best extension builder in NG21. No o...
From £86,776
Need an Extension Builder in NG21? DB Construction has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
From £87,152
CJS Building is an established and experienced local extension builder in NG21. Please contact us for a free, no obligation quote and competitive r...
From £86,816
George Raffan Builder is an established and experienced local extension builder in NG21. Please contact us for a free, no obligation quote and comp...
From £87,352
We specialise in full Bathroom Installations. From design and advise, to completion and satisfaction.

Building a granny annexe ranges from £86,776 (DB Construction based in NG22) to £87,352 (Brook Contractors based in NG20), 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 NG21 by posting a job with HaMuch. We will send it to extension builders in NG21 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Forest Town | £33 | £263 |
| Granny Annexe near Mansfield | £33 | £262 |
| Granny Annexe near Mansfield Woodhouse | £33 | £263 |
| Granny Annexe near Sutton-in-Ashfield | £33 | £265 |
| Granny Annexe near Kirkby-in-Ashfield | £34 | £270 |
| Granny Annexe near Ashfield | £34 | £270 |
| Granny Annexe near Hucknall | £35 | £258 |
| Granny Annexe near Arnold | £35 | £244 |
| Granny Annexe near Worksop | £33 | £265 |
| Granny Annexe near Alfreton | £34 | £261 |
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 - £17,529

Two storey extension - £88,043

Build a timber frame extension - £26,029

Build a swimming pool - £81,029

Single storey extension - £55,576

Side return extension - £41,824

Install an RSJ - £2,229

Outbuilding - £10,029

Build a Mansard loft conversion - £52,029

Loft conversion - £34,020

Build a kitchen extension - £42,029

Hip to gable loft conversion - £42,029

Granny annexe - £87,029

Garden office - £10,029

Convert a Garage - £16,029

Garage - £18,529

Build a flat roof extension - £22,029

Build a dormer loft conversion - £42,029

Concrete foundations - £6,279

Convert a bungalow loft - £29,029

Convert a basement - £37,824