| Maglona Terrace, Mountrath Rd | €300,000 | 11 |
| Main St, Ballyroan | — | 9 |
| Main Street, Abbeyleix | — | 7 |
| Main Street, Ballylinan | — | 5 |
| Main Street, Clonaslee | — | 7 |
| Main Street, Mountrath | — | 9 |
| Main Street, Portarlington | — | 12 |
| Main Street, Portlaoise | — | 6 |
| Main Street, Rathdowney | €150,000 | 14 |
| Main Street, Stradbally | €195,000 | 21 |
| Manor Grove, Manor Rd | — | 6 |
| Manor Grove, Mountmellick | €220,000 | 19 |
| Maple Avenue, Foxburrow | €339,207 | 26 |
| Maple Close, Foxburrow | €306,168 | 6 |
| Maple Court, Foxburrow | €374,449 | 5 |
| Marian Avenue, Portlaoise | €194,000 | 27 |
| Marian Hill, Portarlington | €165,000 | 11 |
| Market Mews, Maryborough Village | €209,000 | 30 |
| Market Place, Portlaoise | — | 5 |
| Market Square, Mountrath | — | 5 |
| Market Square, Portlaoise | — | 11 |
| Mary Street, Durrow | — | 11 |
| Maryborough Crescent, Dublin Rd | €172,500 | 9 |
| Maryborough Crescent, Portlaoise | €170,000 | 11 |
| Maryborough Village, Mountrath Road | €262,114 | 106 |
| Maryborough Village, Portlaoise | €259,500 | 75 |
| Masslough Meadow, Ballinakill | — | 9 |
| Meadows Grove, Crossneen | €308,370 | 5 |
| Meadows Way, Crosneen | €283,265 | 8 |
| Meadows Way, Crossneen | €290,748 | 42 |
| Meadows Way, Springhill Road | €275,000 | 10 |
| Meelick, Portlaoise | — | 6 |
| Meelick, Rosenallis | — | 7 |
| Mell Street, Kilminchy | €201,500 | 38 |
| Millbrook, Portlaoise | €170,000 | 16 |
| Millbrook Manor, Canal Rd | — | 6 |
| Miners Walk, Newtown | — | 7 |
| Monks Bridge, Maryborough Village | — | 5 |
| Moore Street, Rathdowney | €126,250 | 12 |
| Mooreville, Rathdowney | €215,000 | 21 |
| Morette, Emo | — | 8 |
| Mount Henry Close, Killenard | — | 11 |
| Mount Henry Drive, Killenard | — | 7 |
| Mountrath Road, Portlaoise | — | 8 |
| Moyne Cottages, Moyne Cross | — | 5 |
| The Maltings, Portlaoise | €285,185 | 28 |
| The Maples, Forest Park | €142,500 | 12 |
| The Maples, Forrest Park | — | 6 |
| The Meadow, Mount Stewart | €325,991 | 16 |
| The Mews, Rath Rua | €318,655 | 6 |