| Magenta Drive, Grange Manor | — | 9 |
| Magenta Mews, Grange Manor | — | 13 |
| Mahon Mills, Kilmacthomas | €145,000 | 35 |
| Main Street, Ardmore | — | 5 |
| Main Street, Cappoquin | — | 11 |
| Main Street, Dungarvan | — | 7 |
| Main Street, Kilmacthomas | — | 8 |
| Main Street, Lismore | €142,500 | 12 |
| Main Street, Tramore | — | 10 |
| Malin Avenue, Ardkeen Village | €265,000 | 16 |
| Malt House, Georges Quay | — | 7 |
| Manor Court, Cork Road | €100,000 | 25 |
| Manor Street, Waterford City | — | 6 |
| Maple Close, Carraig An Aird | — | 5 |
| Maple Court, Ballycarnane Woods | — | 7 |
| Maple Springs Apts, Kilcohan | — | 8 |
| Marian Terrace, Tramore | €195,000 | 15 |
| Marine Drive, Tramore | — | 6 |
| Maritana Gate, Canada Street | €155,000 | 83 |
| Market Square, Portlaw | €133,750 | 30 |
| Market Street, Tramore | — | 5 |
| Mary Street, Dungarvan | — | 7 |
| Marymount, Ferrybank | €193,000 | 16 |
| Mayors Walk, Waterford City | — | 7 |
| Mc Donagh Road, Kingsmeadow | — | 5 |
| McConnell House, William St | — | 10 |
| McDERMOTT ROAD, Cork Road | €207,000 | 16 |
| McDonagh Road, Kingsmeadow | — | 9 |
| Meadow Road, Riverview | — | 7 |
| Meadowbank, Baile na Deise | — | 8 |
| Meadowbank, Baile na nDeise | €220,000 | 57 |
| Meadowbank, Cork Road | €187,500 | 12 |
| Meadowbrook, Tramore | €305,000 | 42 |
| Medford Green, Earlscourt | — | 10 |
| Meledon Green, Farmleigh | €270,000 | 17 |
| Meledon Grove, Farmleigh | €246,750 | 21 |
| Meneval Green, Farmleigh | €255,000 | 14 |
| Meneval Grove, Farmleigh | €259,000 | 11 |
| Meneval Place, Farmleigh | €241,000 | 10 |
| Millbrook Court, Old Tramore Road | — | 7 |
| Mitchel Street, Dungarvan | — | 5 |
| Mitchell Street, Dungarvan | €160,000 | 18 |
| Moloney Stores, Main St | — | 7 |
| Moloneys Stores, Dungarvan | — | 6 |
| Monksfield, Abbeyside | €350,825 | 127 |
| Monksfield, Clonea Road | €355,000 | 14 |
| Monksfield, Dungarvan | — | 25 |
| Montelado Way, Farmleigh | €250,000 | 22 |
| Monteverdi Green, Farmleigh | €230,000 | 13 |
| Monteverdi Grove, Farmleigh | €235,000 | 7 |
| Montrose Avenue, Foxwood | — | 23 |
| Montrose Drive, Foxwood | — | 29 |
| Monvoy Valley, Tramore | €301,000 | 23 |
| Moonvoy Bridge, Tramore | €430,000 | 13 |
| Morley Terrace, Gracedieu Road | €250,000 | 19 |
| Mount Suir, Gracedieu | €167,500 | 31 |
| Mount Suir Manor, Gracedieu | — | 8 |
| Mount William, Williamstown | — | 63 |
| Mountain View, Lismore | — | 7 |
| Mountfield, Tramore | €346,000 | 63 |
| Moyne House, Grattan Quay | €149,000 | 13 |
| Muckross Close, Powerscourt | — | 8 |
| Murphy Place, Abbeyside | €280,000 | 23 |
| The Malthouse, Mary St | — | 13 |
| The Meadow, Monksfield | €215,859 | 31 |
| The Meadows, Monksfield | €338,138 | 6 |
| The Mews, Fairfield Park | €218,000 | 10 |
| The Mills, Ballysaggart Beg | — | 17 |
| The Mills, Lismore | €237,885 | 30 |
| The Moorings, Maypark Lane | — | 14 |