| 20 Ard Gleann, Killygoan, Monaghan | €72,000 | 2021-05-28 |
| 20 Ascaill Rois, Carrickmacross | €171,806 | 2010-02-12 |
| 20 Bothar Eanna, Convent Lands, Carrickmacross | €72,160 | 2024-09-24 |
| 20 Castle Park, Killycard | €249,000 | 2020-03-11 |
| 20 Castleross Retirement Village, Carrickmacross | €96,916 | 2013-01-03 |
| 20 Cathedral Walk, Latlurcan, Monaghan | €277,500 | 2024-05-31 |
| 20 Cloughvalley, Carrickmacross, Co Monaghan | €225,000 | 2022-12-01 |
| 20 Cluain Alainn, Donaghmoyne Rd, Carrickmacross | €265,000 | 2025-07-30 |
| 20 Cluain Lorcan, Latlorcan, Monaghan | €210,446 | 2010-02-10 |
| 20 Cois Locha, Doohamlet, Castleblayney | €185,000 | 2023-09-27 |
| 20 Connabury Hill, Conabury, Castleblayney | €136,564 | 2010-06-29 |
| 20 Convent View, Carrickmacross, Monaghan | €144,000 | 2022-03-31 |
| 20 Corr An Tobhair, Ballybay Road, Carrickmacross | €239,648 | 2022-03-10 |
| 20 Crann Nua, Carrickmacross, Monaghan | €477,500 | 2022-06-27 |
| 20 Cul Brannan, Corrybrennan, Ballybay | €188,000 | 2025-07-08 |
| 20 Culbrennan, Ballybay | €43,500 | 2010-03-31 |
| 20 Devin Reilly Terrace, Monaghan, Monaghan | €130,000 | 2016-10-03 |
| 20 Doctor Mckenna Terrace, Pound Hill, Monaghan | €121,000 | 2018-04-26 |
| 20 Drumbear Wood, Monaghan | €221,000 | 2021-07-30 |
| 20 Drummond Radhairc, Dundalk Road, Carrickmacross | €149,780 | 2014-05-28 |
| 20 Emmet Rd, Carrickmacross, Monaghan | €145,000 | 2019-09-26 |
| 20 Foxfield, Carrickmacross, Monaghan | €312,500 | 2026-06-26 |
| 20 Glencove Manor, Latlurcan, Monaghan | €191,000 | 2020-10-23 |
| 20 Glenowen, Ballinode, Monaghan | €232,500 | 2023-02-03 |
| 20 High St, Monaghan Town, Monaghan | €183,000 | 2023-11-15 |
| 20 Hill St, Monaghan, Monaghan | €100,000 | 2016-12-08 |
| 20 Hill Street, Monaghan | €190,000 | 2012-01-10 |
| 20 Knockcarrick, Annyalla, Castleblayney | €70,000 | 2013-04-29 |
| 20 Knockroe Glen, Clones Road, Monaghan | €55,000 | 2012-12-18 |
| 20 Lake View, Castleblaney, Monaghan | €70,000 | 2019-01-22 |
| 20 Latlorcan Court, Monaghan, Monaghan | €136,000 | 2020-03-13 |
| 20 Latlorcan Glen, Monaghan, Monaghan | €240,000 | 2025-11-13 |
| 20 Limegrove Manor, Kilnacloy, Monaghan | €30,358 | 2016-03-16 |
| 20 Lower York Street, Castleblayney, Monaghan | €160,000 | 2025-08-14 |
| 20 Manor Wood, Monaghan, Monaghan | €350,000 | 2023-02-08 |
| 20 Maple Grove, Smithborough, Monaghan | €138,000 | 2018-07-23 |
| 20 Meadow View, Ballybay, Monaghan | €160,000 | 2023-12-20 |
| 20 Mullach Glas Crescent, Monaghan | €118,000 | 2010-07-30 |
| 20 Mullach Glas, Cresent, Monaghan | €208,000 | 2024-05-23 |
| 20 Mullaghmatt, Monaghan, Co. Monaghan | €36,000 | 2019-05-31 |
| 20 Oduffy Tce, Ballybay, Monaghan | €95,000 | 2022-07-28 |
| 20 Riverside, Coolshannagh, Monaghan | €90,000 | 2014-12-31 |
| 20 Scotshouse Close, Scotshouse, Monaghan | €113,000 | 2022-10-28 |
| 20 Sean Mhuileann, Ballinode, Monaghan | €175,000 | 2017-07-26 |
| 20 St Patricks Terrace, Monaghan Town, Monaghan | €140,000 | 2024-06-07 |
| 20 Station View, Kilnacloy, Monaghan | €233,480 | 2022-09-21 |
| 20 The Elms, Lough Na Glack, Carrickmacross | €97,522 | 2011-05-06 |
| 20 The Ferns, Scotstown | €27,754 | 2018-04-12 |
| 20 The Meadows, Smithboro | €87,500 | 2013-06-21 |
| 20 Thorndale, Bree, Castleblayney | €117,444 | 2015-12-15 |
| 20 Village Sq, Glaslough, Co Monaghan | €116,000 | 2017-02-16 |
| 201 Beechgrove Lawns, Monaghan, Monaghan | €110,000 | 2016-12-20 |
| 202 Beechgrove Lawns, Monaghan, Co. Monaghan | €100,000 | 2017-03-21 |
| 203 Beechgrove Lawns, Monaghan | €100,000 | 2012-11-08 |
| 203 Beechgrove Lawns, Monaghan, Monaghan | €110,000 | 2015-10-30 |
| 204 Beechgrove Lawns, Monaghan | €40,500 | 2014-07-15 |
| 204 Beechgrove Lawns, Monaghan, Monaghan | €71,000 | 2015-09-03 |
| 21 An Crannog, Kingscourt Road, Carrickmacross | €149,000 | 2020-07-28 |
| 21 Ardross Avenue, Carrickmacross | €165,000 | 2010-07-27 |
| 21 Ascail Rois, Magheraboy Road, Carrickmacross | €227,000 | 2022-12-09 |
| 21 Ascaill Rois, Magheraboy Road, Carrickmacross | €158,590 | 2018-03-22 |
| 21 Ashgrove Lawns, Monaghan, Monaghan | €210,000 | 2024-05-09 |
| 21 Ashview Court, Castleblayney, Monaghan | €560,000 | 2017-01-26 |
| 21 Beech Dr, Castleblayney, Monaghan | €60,000 | 2016-05-17 |
| 21 Boyer, Rockcorry, Co Monaghan | €80,000 | 2022-11-18 |
| 21 Castle Park, Killycard, Castleblayney | €228,194 | 2022-12-21 |
| 21 Cluain Alainn, Carrickmacross, Monaghan | €135,000 | 2015-11-19 |
| 21 Coill Darach, Castleblayney, Monaghan | €240,000 | 2025-04-02 |
| 21 Cois Locha, Doohamlet, Castleblaney | €100,000 | 2015-12-08 |
| 21 Coolshannagh View, Coolshannagh, Monaghan | €330,000 | 2018-04-07 |
| 21 Corr An Tobhair, Ballybay Road, Carrickmacross | €239,648 | 2022-02-08 |
| 21 Crescent Hill, Castleblayney, Monaghan | €182,200 | 2022-04-04 |
| 21 Cuchullain Terrace, Carrickmacross, Monaghan | €162,000 | 2022-10-03 |
| 21 Devin Reilly Terrace, Monaghan | €60,000 | 2011-06-24 |
| 21 Dr Mckenna Terrace, Monaghan, Monaghan | €110,000 | 2022-07-01 |
| 21 Drumbear Wood, Cootehill Rd, Monaghan | €220,000 | 2018-10-31 |
| 21 Drumbear, Monaghan, Co Monaghan | €250,000 | 2024-03-26 |
| 21 Drummond Radhairc, Dundalk Road, Carrickmacross | €153,825 | 2014-06-20 |
| 21 Emmet St, Carrickmacross, Monaghan | €48,000 | 2014-07-14 |
| 21 Foxfield, Carrickmacross | €112,000 | 2014-04-11 |
| 21 Gleann Droimnin, Carrickmacross | €352,423 | 2025-08-22 |
| 21 Glenowen, Ballinode, Monaghan | €245,000 | 2022-10-05 |
| 21 High St, Monaghan | €130,000 | 2023-08-25 |
| 21 Highfield Close, Killygoan, Monaghan | €203,000 | 2025-06-04 |
| 21 Killycard Manor, Castleblayney, Monaghan | €279,000 | 2024-09-02 |
| 21 Knock Carrick, Annyalla, Castleblaney | €95,000 | 2018-05-28 |
| 21 Knocktornagh, Castleblayney, Monaghan | €175,000 | 2016-11-09 |
| 21 Latlorcan Court, Monaghan, Monaghan | €246,000 | 2025-09-18 |
| 21 Loch Mor Ave, Ballybay, Monaghan | €120,000 | 2024-02-22 |
| 21 Magherarny, Smithborough, Monaghan | €140,000 | 2022-12-21 |
| 21 Montfort, Monaghan, Monaghan | €245,000 | 2024-01-11 |
| 21 Mullach Glas Crescent, Monaghan | €89,950 | 2011-06-09 |
| 21 Mullach Glas, Monaghan | €100,000 | 2024-02-23 |
| 21 Old Cross Sq, Monaghan, Monaghan | €125,000 | 2024-09-02 |
| 21 Pearse Ave, Carrickmacross, Monaghan | €170,000 | 2022-10-03 |
| 21 Rosevale, Castleblayney, Monaghan | €160,000 | 2019-03-29 |
| 21 Scotshouse Close, Scotshouse, Monaghan | €96,000 | 2021-03-11 |
| 21 Scotstown Rd, Mullaghdun, Monaghan | €280,000 | 2018-04-17 |
| 21 St Patricks Terrace, Monaghan, Monaghan | €135,000 | 2023-06-08 |
| 21 St. Macartans Villas, Carrickmacross | €57,000 | 2012-11-22 |
| 21 Station View, Kilnacloy, Monaghan | €249,981 | 2022-12-21 |
| 21 The Birches, Lough Na Glack, Carrickmacross | €127,753 | 2021-02-05 |
| 21 The Elms, Lough Na Glack, Carrickmacross | €105,727 | 2021-02-05 |
| 21 The Ferns, Scotstown, Monaghan | €175,000 | 2020-07-23 |
| 21 The Meadows, Smithboro, Co Monaghan | €172,000 | 2022-09-08 |
| 21 Thorndale, Bree, Castleblayney | €117,444 | 2015-12-15 |
| 21 Tully, Monaghan, Monaghan | €125,000 | 2020-07-03 |
| 21 Village Sq, Glaslough, Monaghan | €225,000 | 2020-10-16 |
| 21 Wylies Hill, Ballybay, Monaghan | €194,500 | 2024-05-15 |
| 21 York St, Castleblayney, Monaghan | €94,000 | 2020-10-19 |
| 21-31 Maple Grove, Smithborough, Co. Monaghan | €1,275,771 | 2018-07-23 |
| 210 Beechgrove Lawn, Monaghan, Monaghan | €125,000 | 2025-10-02 |
| 22 An Crannog, Kingscourt Road, Carrickmacross | €27,342 | 2013-09-11 |
| 22 Ard Gleann, Killygoan, Monaghan | €57,500 | 2020-10-02 |
| 22 Ardveagh, Castleblayney Road, Ballybay | €110,131 | 2021-02-09 |
| 22 Ascaill Rois, Carrickmacross | €162,995 | 2015-12-11 |
| 22 Ascaill Rois, Magherboy Road, Carrickmacross | €325,000 | 2025-12-18 |
| 22 Beechgrove, Clones, Monaghan | €75,000 | 2024-05-01 |
| 22 Beechgrove, Lawns, Monaghan | €176,000 | 2022-11-04 |
| 22 Bothar Eanna, Convent Lands, Carrickmacross | €240,000 | 2022-11-11 |
| 22 Castle Park, Killycard, Castleblayney | €237,875 | 2022-12-15 |
| 22 Church Hill, Clones, County Monaghan | €41,000 | 2020-11-10 |
| 22 Cloughvalley, Carrickmacross, Monaghan | €180,000 | 2019-12-19 |
| 22 Cluain Alainn, Donaghmoyne Rd, Carrickmacross | €150,000 | 2016-07-29 |
| 22 Coill Darach, Castleblayney, Monaghan | €270,000 | 2025-09-18 |
| 22 Coolshannagh Rd, Monaghan, Monaghan | €154,285 | 2022-03-21 |
| 22 Corr An Tobair, Ballybay Road, Carrickmacross | €239,648 | 2022-04-14 |
| 22 Cuchullainn Terrace, Carrickmacross, Co Monaghan | €150,000 | 2025-12-15 |
| 22 Cul Brannan, Ballybay, Monaghan | €40,000 | 2021-05-28 |
| 22 Culbrannan, Ballybay | €95,000 | 2011-11-25 |
| 22 Cuppog, Ballinode, Monaghan | €180,000 | 2022-08-18 |
| 22 Doctor Mckenna Terrace, Killygoan, Monaghan | €115,000 | 2019-10-30 |
| 22 Drummond Etra, Carrickmacross, Co Monaghan | €220,000 | 2024-07-31 |
| 22 Drummond Radhairc, Dundalk Rd, Carrickmacross | €176,211 | 2015-05-19 |
| 22 Gleann Droimnin, Carrickmacross | €339,207 | 2025-09-12 |
| 22 Glenowen, Ballinode | €130,000 | 2012-10-17 |
| 22 Glenview Dr, Killygowan, Monaghan | €62,000 | 2014-04-29 |
| 22 Killycard Manor, Bree, Castleblayney | €143,000 | 2016-06-28 |
| 22 Knock Carrick, Anyalla | €30,000 | 2013-11-11 |
| 22 Knockcarrick, Annyalla, Monaghan | €165,000 | 2021-06-30 |
| 22 Knockroe Glen, Monaghan | €209,070 | 2011-10-25 |
| 22 Lake View, Castleblayney, Co Monaghan | €42,000 | 2014-04-04 |
| 22 Latlorcan Court, Castleblayney Rd, Monaghan | €157,000 | 2018-02-13 |
| 22 Mullach Glas, Monaghan | €116,000 | 2011-02-17 |
| 22 Mullaghmatt, Monaghan | €33,000 | 2012-03-09 |
| 22 Park Rd, Drumillard, Castleblayney | €230,000 | 2026-03-10 |
| 22 Park St, Monaghan, Monaghan | €75,500 | 2023-01-25 |
| 22 Riverside, Coolshannagh, Monaghan | €170,000 | 2023-08-14 |
| 22 Rosevale, Castleblayney, Monaghan | €210,000 | 2024-08-02 |
| 22 Sruth An Mhuilinn, Emyvale, Monaghan | €120,000 | 2023-08-04 |
| 22 Stationview, Monaghan | €233,480 | 2022-12-16 |
| 22 The Crescent, Castleblayney, Co Monaghan | €126,000 | 2024-05-17 |
| 22 The Elms, Lough Na Glack, Carrickmacross | €101,322 | 2021-02-05 |
| 22 The Ferns, Scotstown, Co Monaghan | €190,000 | 2018-11-22 |
| 22 The Willows, Castleblaney, Monaghan | €240,000 | 2024-06-27 |
| 22 Thorndale, Bree, Castleblayney | €117,444 | 2015-12-15 |
| 22 Valley Close, Carrickmacross, Co Monaghan | €145,000 | 2019-03-22 |
| 22A Cosh Locha, Doohamlet, Castleblaney | €170,000 | 2022-09-16 |
| 23 Alderwood, Carrickmacross, Monaghan | €265,000 | 2023-10-26 |
| 23 An Crannog, Kingscourt Road, Carrickmacross | €149,000 | 2020-09-08 |
| 23 Ard Gleann, Killygoan, Monaghan | €60,000 | 2017-05-15 |
| 23 Ard Veagh, Ballybay | €69,450 | 2016-09-22 |
| 23 Ard Veagh, Castleblayney Road, Ballybay | €110,132 | 2013-09-30 |
| 23 Ascaill Rois, Magherboy Road, Carrickmacross | €158,590 | 2016-11-25 |
| 23 Bree, Castleblaney, Co. Monaghan | €85,000 | 2016-07-07 |
| 23 Castle Park, Killycard, Castleblayney | €233,480 | 2023-02-27 |
| 23 Castleross Retirement Village, Carrickmacross, Co Monaghan | €178,000 | 2023-05-26 |
| 23 Cathedral Walk, Monaghan, Monaghan | €235,000 | 2021-07-16 |
| 23 Cluain Alainn, Donaghmoyne Rd, Carrickmacross | €192,500 | 2022-01-07 |
| 23 Corr An Tobhair, Ballybay Road, Carrickmacross | €237,900 | 2022-04-28 |
| 23 Cuchalainn Tce, Carrickmacross | €56,500 | 2013-05-09 |
| 23 Cul Brannan, Ballybay, Monaghan | €65,000 | 2014-09-11 |
| 23 Devin Reilly Terrace, Connolly Park, Monaghan | €200,000 | 2026-03-27 |
| 23 Dr Mckenna Terrace, Monaghan, Co. Monaghan | €105,000 | 2026-07-21 |
| 23 Drummond Radhairc, Dundalk Road, Carrickmacross | €380,000 | 2024-02-08 |
| 23 Dublin Street, Monaghan | €25,000 | 2013-02-05 |
| 23 Emmet Street, Carrickmacross, Co Monaghan | €200,000 | 2026-08-24 |
| 23 Gleann Droimnin, Ballybay Road, Carrickmaross | €365,000 | 2025-10-22 |
| 23 Glenowen, Ballinode, Monaghan | €230,000 | 2023-11-30 |
| 23 Glenview Dr, Monaghan, Monaghan | €175,000 | 2022-04-04 |
| 23 High St, Monaghan Town, Monaghan | €146,000 | 2018-12-19 |
| 23 Highfield, Carrickmacross, Co Monaghan | €102,000 | 2015-01-13 |
| 23 Inver Park, Carrickmacross, Monaghan | €210,000 | 2019-08-20 |
| 23 Knockcarrick, Annyalla | €67,699 | 2021-04-08 |
| 23 Knockroe Glen, Clones Road, Co. Monaghan | €102,000 | 2018-08-27 |
| 23 Knockroe Glen, Monaghan | €175,071 | 2011-10-25 |
| 23 Latlorcan Court, Monaghan, Monaghan | €180,000 | 2023-08-11 |
| 23 Loch Mor Ave, Ballybay | €44,500 | 2013-12-11 |
| 23 Loch Mor Ave, Ballybay, Monaghan | €143,500 | 2023-07-25 |
| 23 Main St, Ballybay, Monaghan | €40,000 | 2020-08-19 |
| 23 Mullach Glas, Monaghan | €75,000 | 2015-11-06 |
| 23 Mullinary Street, Carrickmacross, Co Monaghan | €40,000 | 2023-01-19 |
| 23 O'neill Street, Carrickmacross, Co. Monaghan | €265,000 | 2025-12-19 |
| 23 Oakland Grove, Scotshouse, Co Monaghan | €212,500 | 2025-10-15 |
| 23 Oduffy Terrace, Ballybay, Monaghan | €25,000 | 2022-04-06 |
| 23 Oriel Park, Emyvale, Co Monaghan | €50,000 | 2020-09-21 |
| 23 Pearse Ave, Carrickmacross, Monaghan | €105,000 | 2023-10-27 |
| 23 Scotshouse Close, Scotshouse, Monaghan | €110,000 | 2024-07-29 |
| 23 Sruthan Mhuilinn, Scarnageeragh, Emyvale | €115,000 | 2019-11-21 |
| 23 St Patricks Terrace, Monaghan, Monaghan | €40,000 | 2014-12-12 |