From £87,864
Family run business established since 2004
large or small we build them all

Building a granny annexe ranges from £87,864 (D C BUILDING SERVICES based in TD9) to £87,864 (D C BUILDING SERVICES based in TD9), 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 Rochester-upon-medway by posting a job with HaMuch. We will send it to extension builders in Rochester-upon-medway who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Scottish Borders | £35 | £287 |
| Granny Annexe near Ashington | £44 | £280 |
| Granny Annexe near Cramlington | £36 | £256 |
| Granny Annexe near Blyth | £42 | £288 |
| Granny Annexe near Longbenton | £34 | £234 |
| Granny Annexe near Newcastle Upon Tyne | £33 | £236 |
| Granny Annexe near Consett | £33 | £241 |
| Granny Annexe near Gateshead | £33 | £236 |
| Granny Annexe near Wallsend | £34 | £245 |
| Granny Annexe near Stanley | £34 | £242 |
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 - £18,364

Two storey extension - £89,296

Build a timber frame extension - £26,864

Build a swimming pool - £81,864

Single storey extension - £72,280

Side return extension - £51,220

Install an RSJ - £3,064

Outbuilding - £10,864

Build a Mansard loft conversion - £52,864

Loft conversion - £41,850

Build a kitchen extension - £42,864

Hip to gable loft conversion - £42,864

Granny annexe - £87,864

Garden office - £10,864

Convert a Garage - £16,864

Garage - £19,364

Build a flat roof extension - £22,864

Build a dormer loft conversion - £42,864

Concrete foundations - £7,114

Convert a bungalow loft - £29,864

Convert a basement - £47,220