Trusted and professional extension builder in TS18. Experienced in all extension buildering work and keeping within budget and on quote. Empire Bui...
From £86,936
Design Consultancy & Construction Services Ltd are here to help customers who need an Extension Builder in TS18. We offer a competitive rate to com...

Building a granny annexe ranges from £86,744 (Empire Building Contracts based in TS18) to £86,936 (Design Consultancy & Construction Services Ltd based in TS18), 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 TS18 by posting a job with HaMuch. We will send it to extension builders in TS18 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Stockton-on-Tees | £41 | £228 |
| Granny Annexe near Thornaby-on-Tees | £42 | £231 |
| Granny Annexe near Ingleby Barwick | £41 | £228 |
| Granny Annexe near Billingham | £44 | £242 |
| Granny Annexe near Middlesbrough | £43 | £236 |
| Granny Annexe near Eston | £42 | £241 |
| Granny Annexe near Darlington | £60 | £222 |
| Granny Annexe near Redcar & Cleveland | £43 | £254 |
| Granny Annexe near Hartlepool | £40 | £236 |
| Granny Annexe near Redcar | £42 | £240 |
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 - £17,340

Two storey extension - £87,760

Build a timber frame extension - £25,840

Build a swimming pool - £80,840

Single storey extension - £51,800

Side return extension - £39,700

Install an RSJ - £2,040

Outbuilding - £9,840

Build a Mansard loft conversion - £51,840

Loft conversion - £32,250

Build a kitchen extension - £41,840

Hip to gable loft conversion - £41,840

Granny annexe - £86,840

Garden office - £9,840

Convert a Garage - £15,840

Garage - £18,340

Build a flat roof extension - £21,840

Build a dormer loft conversion - £41,840

Concrete foundations - £6,090

Convert a bungalow loft - £28,840

Convert a basement - £35,700