From £86,840
DAVID LEAKE CONSTRUCTION LTD is an established and experienced local extension builder in S73. Please contact us for a free, no obligation quote an...
From £86,864
Yorkshire Garage Openers is an established extension buildering business in S73. We come highly recommended and provide competitive quotes for your...
From £86,912
MANVERS CONSTRUCTION is an established and experienced local extension builder in S73. Please contact us for a free, no obligation quote and compet...
From £86,984
R.B.H Builders is a trusted extension builder serving customers in S73 and the surrounding area. Contact us to today to get a competitive quote for...
From £87,136
Need an Extension Builder in S73? Misura Limited has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £87,144
Need an Extension Builder in S73? A Baker Building & Property Service has been helping local clients (20 mile radius) with their extension builderi...
From £87,056
Experienced extension builder ready to quote for your work. CONSTRUCTIONAL TIMBER is the best extension builder in S73. No obligation free quotes a...
From £87,008
Trusted and professional extension builder in S73. Experienced in all extension buildering work and keeping within budget and on quote. S J H Const...
From £86,864
Harvie Construction is an established and experienced local extension builder in S73. Please contact us for a free, no obligation quote and competi...
From £86,752
J CLARKE CONSTRUCTION LTD are here to help customers who need an Extension Builder in S73. We offer a competitive rate to complete all your extensi...

Building a granny annexe ranges from £86,752 (J CLARKE CONSTRUCTION LTD based in S75) to £87,144 (A Baker Building & Property Service based in S70), 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 S73 by posting a job with HaMuch. We will send it to extension builders in S73 who will be happy to help you.
"Granny annexe space for mum with separate quarters" - S72, job posted 05/07/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Barnsley | £31 | £242 |
| Granny Annexe near Rotherham | £33 | £257 |
| Granny Annexe near Wickersley | £33 | £257 |
| Granny Annexe near Sheffield | £34 | £280 |
| Granny Annexe near Doncaster | £29 | £238 |
| Granny Annexe near Pontefract | £30 | £228 |
| Granny Annexe near Wakefield | £31 | £240 |
| Granny Annexe near Normanton | £30 | £233 |
| Granny Annexe near Ossett | £33 | £245 |
| Granny Annexe near Castleford | £30 | £225 |
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 - £17,456

Two storey extension - £87,934

Build a timber frame extension - £25,956

Build a swimming pool - £80,956

Single storey extension - £54,120

Side return extension - £41,005

Install an RSJ - £2,156

Outbuilding - £9,956

Build a Mansard loft conversion - £51,956

Loft conversion - £33,338

Build a kitchen extension - £41,956

Hip to gable loft conversion - £41,956

Granny annexe - £86,956

Garden office - £9,956

Convert a Garage - £15,956

Garage - £18,456

Build a flat roof extension - £21,956

Build a dormer loft conversion - £41,956

Concrete foundations - £6,206

Convert a bungalow loft - £28,956

Convert a basement - £37,005