A granny annexe is the ideal solution for offering a young family member their own space in your home while they save up for their own house, or to help an older relative have some independence while keeping them at a safe distance. But how much do they cost to build in BT30?
Building a granny annexe ranges from £86,072 (Extended living by Gilbert-Ash based in BT12) to £86,280 (Ballygrange Contracts based in BT34), 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 BT30 by posting a job with HaMuch. We will send it to extension builders in BT30 who will be happy to help you.

| Business name | Granny annexe cost |
|---|---|
| N W Doyle & Son, Ballynahinch, BT24 | £86,200 |
| apex pharaoh ltd, Down, bt30 | £86,136 |
| Colin Gilmore Building Contractor, Newtownards, BT22 | £86,200 |
| Mount Oriel Conversions & Extensions, Belfast, BT8 | £86,096 |
| AK Building Services, Carryduff, BT8 | £86,152 |
| Ballygrange Contracts, Down, BT34 | £86,280 |
| McEvoy Building & Joinery, Cregagh, BT6 | £86,096 |
| T.I Building, Ballinderry, BT28 | £86,104 |
| Firenstack Solutions, Cregagh, BT6 | £86,080 |
| MIRKOW, Cregagh, BT6 | £86,088 |
| Finch Construction NI, Antrim, BT28 | £86,184 |
| Extended living by Gilbert-Ash, 47 Boucher Road, Belfast, BT12 | £86,072 |
| SM Plumbing & Heating, Ormeau, BT7 | £86,088 |
| H.M.Builders, Andersonstown, BT11 | £86,096 |
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Portaferry | £20 | £150 |
| Granny Annexe near Ballynahinch | £15 | £150 |
| Granny Annexe near Saintfield | £20 | £141 |
| Granny Annexe near Comber | £20 | £142 |
| Granny Annexe near Ballygowan | £20 | £150 |
| Granny Annexe near Carryduff | £19 | £130 |
| Granny Annexe near Hillsborough and Culcavy | £21 | £141 |
| Granny Annexe near Lisburn | £20 | £139 |
| Granny Annexe near Belfast | £19 | £132 |
| Granny Annexe near Holywood | £19 | £125 |