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With extensive extension buildering experience, we provide reliable, high-quality workmanship at competitive prices. G K Contracts Building & Joine...

Building a granny annexe ranges from £86,640 (G K Contracts Building & Joinery based in BT32) to £86,640 (G K Contracts Building & Joinery based in BT32), 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 Rathfriland by posting a job with HaMuch. We will send it to extension builders in Rathfriland who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Banbridge | £29 | £205 |
| Granny Annexe near Kilkeel | £28 | £182 |
| Granny Annexe near Waringstown | £23 | £167 |
| Granny Annexe near Hillsborough and Culcavy | £25 | £170 |
| Granny Annexe near Ballynahinch | £19 | £189 |
| Granny Annexe near Craigavon | £23 | £181 |
| Granny Annexe near Maghaberry | £31 | £205 |
| Granny Annexe near Lisburn | £24 | £164 |
| Granny Annexe near Saintfield | £23 | £162 |
| Granny Annexe near Carryduff | £23 | £158 |
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 - £17,140

Two storey extension - £87,460

Build a timber frame extension - £25,640

Build a swimming pool - £80,640

Single storey extension - £47,800

Side return extension - £37,450

Install an RSJ - £1,840

Outbuilding - £9,640

Build a Mansard loft conversion - £51,640

Loft conversion - £30,375

Build a kitchen extension - £41,640

Hip to gable loft conversion - £41,640

Granny annexe - £86,640

Garden office - £9,640

Convert a Garage - £15,640

Garage - £18,140

Build a flat roof extension - £21,640

Build a dormer loft conversion - £41,640

Concrete foundations - £5,890

Convert a bungalow loft - £28,640

Convert a basement - £33,450