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Select your affordable Dungannon extension builder
Gary Mc cann
Dungannon, BT70
Need to find an Extension Builder near you for all your extension buildering work?
GMC Construction provides a local, trusted extension bui...
From £86,784
JP&S Construction Ltd is an established extension buildering business in Dungannon. We come highly recommended and provide competitive quotes for y...

Building a granny annexe ranges from £86,784 (JP&S Construction Ltd based in BT70) to £87,016 (GMC Construction based in BT70), 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 Dungannon by posting a job with HaMuch. We will send it to extension builders in Dungannon who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Dungannon | £30 | £238 |
| Granny Annexe near Coalisland | £27 | £223 |
| Granny Annexe near Craigavon | £23 | £181 |
| Granny Annexe near Magherafelt | £30 | £238 |
| Granny Annexe near Waringstown | £23 | £167 |
| Granny Annexe near Maghaberry | £31 | £205 |
| Granny Annexe near Dungiven | £22 | £190 |
| Granny Annexe near Banbridge | £29 | £205 |
| Granny Annexe near Crumlin | £26 | £194 |
| Granny Annexe near Strabane | £30 | £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 - £17,400

Two storey extension - £87,850

Build a timber frame extension - £25,900

Build a swimming pool - £80,900

Single storey extension - £53,000

Side return extension - £40,375

Install an RSJ - £2,100

Outbuilding - £9,900

Build a Mansard loft conversion - £51,900

Loft conversion - £32,813

Build a kitchen extension - £41,900

Hip to gable loft conversion - £41,900

Granny annexe - £86,900

Garden office - £9,900

Convert a Garage - £15,900

Garage - £18,400

Build a flat roof extension - £21,900

Build a dormer loft conversion - £41,900

Concrete foundations - £6,150

Convert a bungalow loft - £28,900

Convert a basement - £36,375