| Cabra, Threemilehouse | — | 5 |
| Canal View, Clones Rd | €296,500 | 12 |
| Cappog, Ballinode | — | 7 |
| Cara Street, Clones | €135,000 | 18 |
| Carrickatee, Loughmourne | — | 5 |
| Carrowbarra Island, Smithboro | — | 8 |
| Carrowbarra Island, Smithborough | — | 7 |
| Castle Park, Killycard | €242,882 | 41 |
| Castleblaney Road, Carrickmacross | — | 5 |
| Castleross Retirement Village, Carrickmacross | — | 15 |
| Cathedral View, Connolly Park | — | 5 |
| Cathedral Walk, Latlurcan | — | 6 |
| Ceim Na Carraig, Rockcorry | — | 7 |
| Cherry Park, Clones | €120,000 | 7 |
| Choill Darach, Castleblayney | — | 7 |
| Church Street, Ballybay | — | 6 |
| Church Street, Castleblayney | €182,000 | 10 |
| Clones Road, Newbliss | — | 9 |
| Cloughvalley, Carrickmacross | — | 16 |
| Cluain Alainn, Carrickmacross | €203,000 | 29 |
| Cluain Alainn, Donaghmoyne Rd | €238,000 | 14 |
| Cluain Ard, Dernagrew | €282,500 | 9 |
| Cluain Lorcan, Latlorcan | — | 13 |
| Cnoc Na Greine, Tydavnet | — | 6 |
| Coill Darach, Castleblayney | €240,000 | 27 |
| Cois Locha, Doohamlet | €200,000 | 17 |
| Cois Locha, Glaslough Street | — | 9 |
| Conabury, Castleblayney | — | 8 |
| Conabury Hill, Castleblayney | — | 10 |
| Convent View, Carrickmacross | — | 6 |
| Coolreagh, Carrickmacross | — | 5 |
| Coolshannagh View, Coolshannagh | — | 8 |
| Corcuillogue, Carrickmacross | — | 5 |
| Corr an Tobair, Ballybay Road | €275,000 | 6 |
| Corr An Tobhair, Ballybay Road | €239,648 | 8 |
| Corrybrennan Park, Ballybay | — | 10 |
| Corrygarry, Castleblayney | €245,000 | 7 |
| Crann Nua, Carrickmacross | €460,000 | 15 |
| Creevy, Carrickmacross | €370,000 | 8 |
| Creighton Hall, Lower Fermanagh St | €30,000 | 10 |
| Crescent Hill, Castleblayney | €191,000 | 22 |
| Cuchulainn Terrace, Carrickmacross | — | 5 |
| Cuchullain Terrace, Carrickmacross | — | 5 |
| Cuirt Droim Ard, Carrickmacross | — | 7 |
| Cul Brannan, Ballybay | — | 7 |
| The Crescent, Castleblayney | €151,500 | 17 |