| Tattyboy Blackstaff, Carrickmacross, Monaghan | €214,000 | 2020-05-15 |
| Tattyboy, Carrickmacross, Monaghan | €84,000 | 2022-10-27 |
| Tattyboys, Inniskeen, Carrickmacross | €125,000 | 2010-10-21 |
| Teach Mhuire, Drumneill, Carrickmacross | €270,000 | 2018-11-07 |
| The Bungalow, Church St, Carrickmacross | €165,000 | 2024-12-03 |
| The Cottage, Castleblaney Rd, Carrickmacross | €144,000 | 2024-07-09 |
| The Cottage, Corcuillogue, Carrickmacross | €233,000 | 2014-03-03 |
| The Cottage, Magheross Road, Carrickmacross | €102,000 | 2016-04-15 |
| The Cottage, Mullinary, Carrickmacross | €93,000 | 2016-06-30 |
| The Cottage, Oneill St, Carrickmacross | €140,000 | 2017-10-10 |
| The Harlequinn Bar, Main Street, Carrickmacross | €100,000 | 2014-07-15 |
| The Lurgans, Carrickmacross, Lurgans | €175,000 | 2014-11-20 |
| The Manse, Corvalley, Carrickmacross | €150,000 | 2018-01-31 |
| The Pines, Magheraboy Road, Carrickmacross | €122,500 | 2010-03-31 |
| The Pound, Shercock Road, Carrickmacross | €130,000 | 2014-10-10 |
| The Square, Ballybay Rd, Carrickmacross | €300,000 | 2024-11-11 |
| Tir Na Nog, Monaltybane, Carrickmacross | €215,000 | 2020-02-26 |
| Tirogarvan, Shercock Rd, Carrickmacross | €195,000 | 2016-11-14 |
| Tonaneave, Magheracloone, Carrickmacross | €255,000 | 2018-01-09 |
| Tonanevn Magherclon, Carrickmacross, Monaghan | €100,000 | 2025-04-14 |
| Toneyellida, Donaghmoyne, Carrickmacross | €185,000 | 2021-07-23 |
| Tonyellida, Donaghmoyne, Carrickmacross | €332,500 | 2023-02-21 |
| Trostan, Carrickmacross | €125,000 | 2012-06-19 |
| Trostan, Carrickmacross, County Monaghan | €95,000 | 2018-12-19 |
| Tullyallen, Carrickmacross, Monaghan | €145,000 | 2021-10-14 |
| Tullylougherney, Magheracloone, Carrickmacross | €300,000 | 2023-10-03 |
| Tullynaskeagh East, Carrickmacross, Monaghan | €270,000 | 2016-07-20 |
| Tullynaskeagh West, Carrickmacross, Co Monaghan | €90,000 | 2017-02-17 |
| Tullynaskeagh, Carrickmacross | €185,000 | 2012-02-29 |
| Tullynaskeagh, Carrickmacross, Co Monaghan | €310,000 | 2021-11-08 |
| Tullynaskeagh, Carrickmacross, Monaghan | €50,000 | 2019-09-27 |
| Tullynaskeagh, Drumconrath Rd, Carrickmacross | €105,000 | 2013-07-30 |
| Umerafree, Corduff, Carrickmacross | €480,000 | 2024-10-18 |
| Woodbrook House, Carrickmacross, Co Monaghan | €283,000 | 2019-01-25 |