| Scahill Park, Ballinlough | €150,000 | 16 |
| Scramogue Manor, Scramogue | — | 32 |
| Shanacloon, Ballinagare | — | 12 |
| Shannon Gael, Carrick on Shannon | €245,000 | 22 |
| Shannon Grove, Ballyleague | €195,000 | 17 |
| Shannon Valley, Ballaghadereen | — | 5 |
| Shannon Valley, Sligo Road | — | 11 |
| Shannon View, Rooskey | — | 8 |
| Shannonside, Ballyleague | €172,500 | 20 |
| Sheepwalk, Frenchpark | — | 5 |
| Silveroe Drive, Boyle | — | 7 |
| Silveroe Meadow, Boyle | — | 12 |
| Skyvalley, Taughmaconnell | — | 6 |
| Slattagh More, Rooskey | — | 6 |
| Sli An Choiste, Monksland | €259,500 | 33 |
| Sli An Choiste, Old Tuam Road | — | 9 |
| Sli An Coiste, Monksland | — | 9 |
| Sli Na Sruthan, Ballinlough | €165,500 | 17 |
| Smutternagh, Knockvicar | — | 7 |
| Southpark, Castlerea | — | 6 |
| Springfield, Castlerea | — | 7 |
| St Coman's Park, Athlone | — | 8 |
| St Comans Park, Baylough | — | 5 |
| St Patrick Street, Castlerea | — | 6 |
| St. Patrick's Street, Castlerea | €85,000 | 23 |
| Stone Crescent, Strokestown | — | 5 |
| Stonepark, Galway Rd | — | 5 |
| Strokestown Road, Ballyleague | €215,000 | 11 |
| Summerhill, Athlone | — | 5 |
| Sunnyside Close, Cherry Dr | — | 7 |
| Sycamore Crescent, Boyle | — | 10 |
| The Spinney, Abbeytown | €305,500 | 12 |