| Cahernane House, Ballytruckle | — | 12 |
| Calder House, Paddy Brownes Rd | — | 8 |
| Carn Glas Grove, Gracedieu | €262,500 | 8 |
| Carn Glas Heights, Gracedieu | €276,000 | 11 |
| Carn Glas Mews, Gracedieu | €200,000 | 10 |
| Carn Glas Way, Gracedieu | €223,750 | 23 |
| Carraig Ard, Tramore | — | 8 |
| Carraig Heights, Ard na Shee | — | 5 |
| Carrick Road, Portlaw | — | 10 |
| Carrigahilla, Stradbally | — | 9 |
| Carrigeen, Cappoquin | — | 8 |
| Carrigeenlea, Cliff Road | €581,000 | 19 |
| Carrigeenlea, Tramore | — | 6 |
| Caseyville, Dungarvan | €210,000 | 13 |
| Castle Court, Lismore | €329,000 | 15 |
| Castle House, Davitt's Quay | €200,000 | 24 |
| Castle Place, Block B | — | 5 |
| Castle Place, Railway Square | €130,000 | 36 |
| Castle St, Dungarvan | €165,000 | 11 |
| Castlekeep, Abbeyside | — | 14 |
| Castleview, Williamstown Road | €603,524 | 20 |
| Castlewoods, Ballinamona | €745,000 | 23 |
| Cathal Brugha Place, Dungarvan | — | 7 |
| Central Avenue, Lisduggan | €168,500 | 19 |
| Ceol na Mara, Kill | €196,000 | 16 |
| Chapel Lane, Ballybricken | — | 5 |
| Chapel Street, Lismore | €150,000 | 23 |
| Chapel Street, Tallow | €110,000 | 17 |
| Chestnut Close, Viewmount | — | 10 |
| Chestnut Drive, Lacken Wood | — | 7 |
| Chestnut Grove, Hillview | — | 5 |
| Childers Estate, Dungarvan | — | 6 |
| Church Lane, Lismore | — | 9 |
| Church Street, Cappoquin | — | 9 |
| Church Street, Dungarvan | — | 5 |
| Church Street, Lismore | — | 5 |
| Clanwilliam Court, Mary St | €130,000 | 22 |
| Clarendon Court, Penrose Lane | — | 5 |
| Clarke Road, Cork Road | €215,000 | 18 |
| Cliff Road, Tramore | — | 12 |
| Cliffside, Newtown Glen | €414,096 | 51 |
| Clochan, Adamstown | — | 5 |
| Clochan, Kilmeaden | €317,181 | 102 |
| Clochán, Kilmeadan | €315,858 | 37 |
| Clochán, Kilmeadan WD47780F | — | 5 |
| Clodagh Rd, Avondale | €238,750 | 14 |
| Clonard Park, Ballybeg | — | 27 |
| Clonea Rd, Abbeyside | — | 5 |
| Closegate, Manor St | — | 5 |
| Cluain a Laoi, Cork Road | €198,000 | 14 |
| Cluain Garbhain, Abbeyside | — | 6 |
| Cluain Garbhain, Dungarvan | — | 5 |
| Cluain Larach, Knockenduff | €242,291 | 174 |
| Cluain Larach, Tramore | — | 6 |
| Cluain Mhor, Tramore | €330,000 | 25 |
| Cluain na Greine, The Burgery | €179,500 | 12 |
| Cluain Na Greine, Abbeyside | — | 6 |
| Cluain na Si, Ring | — | 6 |
| Cluain Shui Finn, Lemybrien | €431,718 | 10 |
| Cnoic Caislean, Ballygunner | — | 21 |
| Cnoic Caislean, Knockboy | €253,000 | 57 |
| Coady's Quay, Dungarvan | €400,000 | 13 |
| Cois Abha, Dungarvan | €185,000 | 7 |
| Cois Abha, Shandon | — | 5 |
| Cois Caladh, Georges Quay | — | 7 |
| Cois Caladh, Scotch Quay | — | 5 |
| Cois Cille, Dunhill | — | 14 |
| Cois Inbhir, Shandon | — | 17 |
| Cois Mara, Davitts Quay | — | 16 |
| Cois Mara, Galweys Lane | — | 5 |
| College Court, Ballytruckle | — | 10 |
| Comeragh Crescent, Dungarvan | — | 13 |
| Comeragh Green, Lismore Heights | — | 5 |
| Congress Place, Waterford City | — | 6 |
| Congress Villas, Dungarvan | €157,500 | 31 |
| Convent Street, Tallow | €145,000 | 17 |
| Coolagh Road, Abbeyside | — | 9 |
| Coolbagh, Clashmore | — | 7 |
| Coolboa, Clashmore | — | 10 |
| coolcormack valley, dungarvan | — | 8 |
| Coolcormack Valley, West Waterford Golf Club | — | 8 |
| Coolcormuck Valley, Dungarvan | — | 10 |
| Copper Close, Kilbarry | €323,789 | 7 |
| Copper Close, Summerfield | €266,991 | 24 |
| Copper Close, Summerfields | €351,542 | 23 |
| Coral Grove, Dunmore East | — | 13 |
| Courtyard, Summerhill Terrace | — | 6 |
| Coxs Lane Apartments, Dungarvan | — | 5 |
| Coxtown, Dunmore East | — | 12 |
| Cremore Avenue, Grange Manor | — | 10 |
| Cremore Close, Grange Manor | €268,500 | 12 |
| Cremore Drive, Grange Manor | — | 9 |
| Crescent Drive, Hillview | €225,000 | 16 |
| Creston Close, Earlscourt | — | 8 |
| Crobally Heights, Tramore | — | 15 |
| Croughaun View, Kilmacthomas | — | 8 |
| Cruachan, Abbeyside | €275,000 | 14 |
| Cruachan, Dungarvan | €232,000 | 13 |
| Cruachan, Knockateemore | €275,000 | 19 |
| Crystal Mews, Cork Rd | — | 7 |
| Cuan Na Greine, Crooke | €256,000 | 13 |
| Cuil Beag, Tramore | — | 10 |
| Cuil na Circe, Cappoquin | — | 6 |
| Cul Dara, Williamstown | €325,991 | 33 |
| Cul Dara, Williamstown Road | €320,749 | 36 |
| Cul na Cille, Kilminion South | — | 6 |
| Cul Rua, Aglish | €191,750 | 65 |
| Cul Rua, Brown Street | — | 12 |
| Cul Rua, Queen Street | — | 6 |
| Culrua, Brown Street | €180,000 | 13 |
| Currabaha West, Kilmacthomas | — | 5 |
| The Cloisters, John's Hill | €178,000 | 11 |
| The Close, Kill St Lawrence | — | 10 |
| The Comeraghs, Stradbally | €280,000 | 18 |
| The Convent, Cunningham Road | — | 5 |
| The Court, Fairfield Park | €285,000 | 8 |
| The Courtyard, Ballycarnane | €316,630 | 23 |
| The Courtyard, Bridge St | €120,000 | 16 |
| The Courtyard, Mary St | €120,000 | 10 |
| The Courtyard, Morrissons Road | — | 8 |
| The Courtyard, Summerhill Terrace | — | 6 |
| The Crescent, Fairfield Park | €231,500 | 18 |
| The Croft, Clarinwood | — | 19 |