| Lakeview Heights, Boyle | — | 7 |
| Lavagh, Rooskey | — | 7 |
| Leam, Boyle | €75,000 | 7 |
| Leggatinty, Frenchpark | — | 5 |
| Leitrim, Fairymount | — | 10 |
| Lindenwood, Cootehall | — | 8 |
| lios na habhainn, Rooskey | — | 9 |
| Lios na hAbhainn, Roosky | €175,000 | 10 |
| Lisacul, Castlerea | — | 5 |
| Lisacul Manor, Lisacul | — | 6 |
| Lisalway, Castlerea | — | 8 |
| Lislea, Arigna | €67,000 | 8 |
| Lisnamucklagh, Dysart | — | 5 |
| Lisnaree, Strokestown | — | 11 |
| Lisroyne, Strokestown | — | 9 |
| Lisroyne Court, Elphin Street | — | 11 |
| Lisroyne Elms, Strokestown | — | 6 |
| Lisroyne Oaks, Strokestown | — | 7 |
| Lisserdrea, Boyle | — | 5 |
| Lough Key Wood, Knockvicar | €35,000 | 6 |
| Lough Ree Park, Ballyleague | — | 11 |
| Lower Marian Road, Boyle | — | 6 |
| Lowparks, Boyle | — | 5 |
| Lung, Ballaghaderreen | — | 5 |
| Lurgan, Frenchpark | — | 6 |
| Lus na Greine, Monksland | €327,973 | 26 |