| 12 Clos Derbriu, The Ferns, Blackrock | €305,000 | 2019-10-04 |
| 12 Clos Emer, Saltown, Dundalk | €229,074 | 2025-11-05 |
| 12 Cluain Ard, Lis Na Dara, Carrick Rd | €210,000 | 2018-05-03 |
| 12 Cluain Na Mara, Omeath, Louth | €192,500 | 2020-01-22 |
| 12 Cois Croinn, Saltown Bellewsbridge Road, Dundalk | €103,000 | 2017-12-19 |
| 12 Cois Cuain, Upper Point Road, Dundalk | €200,000 | 2018-11-16 |
| 12 Cois Farraige, Blackrock, Dundalk | €190,300 | 2019-12-05 |
| 12 College Court, Nicholas St, Dundalk | €250,000 | 2023-08-18 |
| 12 College Manor, Dundalk, Co Louth | €183,000 | 2019-09-03 |
| 12 Colpe Drive, Deepforde Drogheda, Dublin Road | €330,400 | 2014-07-28 |
| 12 Colpe Park, Deepforde, Drogheda | €385,900 | 2017-03-10 |
| 12 Cornmill, Ardee, Louth | €170,000 | 2019-03-08 |
| 12 Corporation Cottages, Duleek St Drogheda, Louth | €227,500 | 2026-07-13 |
| 12 Corporation Cottages, Duleek Street, Drogheda | €91,000 | 2015-12-11 |
| 12 Crann Mor Cove, Clogherhead, Co Louth | €240,000 | 2025-10-30 |
| 12 Cuchulainn Heights, Carlingford, Louth | €330,000 | 2023-11-06 |
| 12 Cuchulainn Terrace, Castletown Rd, Dundalk | €130,000 | 2018-11-07 |
| 12 Cuchullain Terrace, Ardee, Louth | €210,000 | 2025-09-24 |
| 12 Dawsons Demesne, Ardee, Louth | €95,000 | 2019-09-06 |
| 12 Distillery Lane, Dundalk, County Louth | €230,000 | 2022-12-20 |
| 12 Donore, Earlsfort, Blackrock | €185,021 | 2017-12-01 |
| 12 Dowdalls Court, Dowdallshill, Newry Road | €378,950 | 2025-12-17 |
| 12 Doylesfort Grove, Dundalk | €162,000 | 2013-06-28 |
| 12 Dublin Road, Drogheda, Co Louth | €180,000 | 2014-10-31 |
| 12 Dundoogan, Heynestown, Dundalk | €210,529 | 2020-12-22 |
| 12 Earl Place, Mount Hamilton, Dundalk | €209,500 | 2017-12-13 |
| 12 Ellwood Park, Ballymakenny Road, Drogheda | €343,786 | 2025-03-07 |
| 12 Elmore Lawns, Omeath, Dundalk | €150,000 | 2023-12-13 |
| 12 Euston St, Greenore, Louth | €80,000 | 2017-11-23 |
| 12 Fair House, Fair Street, Drogheda | €127,500 | 2026-06-29 |
| 12 Fairways Gardens, Dublin Road, Dundalk | €275,000 | 2021-12-10 |
| 12 Farndreg Close, Dundalk, Louth | €110,000 | 2016-12-20 |
| 12 Fatima Park, Dundalk, Louth | €150,000 | 2023-03-29 |
| 12 Ferrard Park, Twenties Lane, Drogheda | €321,585 | 2024-03-01 |
| 12 Fitzgerald Gardens, Ballymakenny Road, Drogheda | €374,449 | 2026-07-09 |
| 12 Flanagans Terrace, Drogheda, Louth | €177,000 | 2019-02-05 |
| 12 Forest Park, Drogheda, Louth | €220,000 | 2019-03-05 |
| 12 Forest View, Wheaton Hall, Drogheda | €325,000 | 2022-06-24 |
| 12 Fountain Hill, Mell, Drogheda | €150,000 | 2014-08-14 |
| 12 Ghort Na Mara, Seafield Road, Blackrock | €220,000 | 2022-11-23 |
| 12 Gort Mell, Old Slane Road, Tullyallen | €375,000 | 2024-10-09 |
| 12 Gort Uaine, Callystown, Clogherhead | €105,000 | 2022-12-16 |
| 12 Grange Close, Muirhevena Mor, Dundalk | €201,000 | 2023-06-16 |
| 12 Grange Dr, Dundalk, Louth | €55,675 | 2021-12-13 |
| 12 Greenhills, Drogheda, Louth | €145,000 | 2024-02-15 |
| 12 Greenshank St, Aston Village, Drogheda | €50,000 | 2022-01-26 |
| 12 Griffith Court, The Laurels, Dundalk | €87,000 | 2017-03-31 |
| 12 Halpin Terrace, Drogheda, Louth | €240,000 | 2026-09-07 |
| 12 Hamilton Avenue, Blackrock, Dundalk | €504,405 | 2017-09-08 |
| 12 Hamilton Avenue, Mount Hamilton, Carrick Rd Dundalk | €390,000 | 2026-04-01 |
| 12 Hamilton Avenue, Mounthamilton, Carrick Road | €198,237 | 2018-01-31 |
| 12 Hamilton Manor, Rock Road, Blackrock | €330,396 | 2020-10-30 |
| 12 Harbour Cottages, Ghan Rd, Carlingford | €310,000 | 2023-01-25 |
| 12 Harbour Grove, Lower Point Rd, Dundalk | €325,000 | 2025-04-24 |
| 12 Harbour View, Coulter Place, Dundalk | €290,000 | 2021-07-22 |
| 12 Haymarket Wharf, John St, Drogheda | €155,000 | 2021-03-08 |
| 12 Hearthfield, Mount Avenue, Dundalk | €325,991 | 2025-01-27 |
| 12 Heathergate Court, Stoneylane, Ardee | €200,000 | 2012-03-28 |
| 12 Hughes Park, Dundalk | €75,000 | 2011-01-24 |
| 12 Jameson House, Batchelors Lane, Drogheda | €71,000 | 2019-08-30 |
| 12 Jocelyn Grove, Dundalk, Louth | €200,000 | 2026-01-13 |
| 12 Jocelyn Street, Dundallk | €290,000 | 2019-06-11 |
| 12 Kilpatrick, Ardee, Louth | €385,000 | 2014-12-18 |
| 12 Knock Shee View, Old Golf Links Road, Blackrock | €190,000 | 2016-06-16 |
| 12 Knockbrack Close, Matthews Lane, Donore Rd Drogheda | €315,000 | 2025-03-06 |
| 12 Laburnam Sq, Drogheda, Louth | €215,000 | 2022-07-06 |
| 12 Ladywell Square, Dublin Road, Dundalk | €126,000 | 2020-02-25 |
| 12 Langfield Close, Dublin Rd, Dundalk | €92,000 | 2014-08-20 |
| 12 Langfield, Dublin Road, Dundalk | €125,000 | 2016-08-26 |
| 12 Laurel Brook Gardens, Dundalk, Louth | €226,000 | 2021-09-28 |
| 12 Laurences Park, Drogheda, Co Louth | €195,000 | 2024-12-18 |
| 12 Library Apts, Chapel St, Dundalk | €175,000 | 2026-07-03 |
| 12 Limekiln Drive, Bog Lane, Liscorrie | €195,000 | 2017-10-17 |
| 12 Line Terrace, Dundalk | €47,000 | 2013-04-23 |
| 12 Line Terrace, Hillstreet, Dundalk | €131,000 | 2019-10-23 |
| 12 Linenfield Crescent, Ballymakenny Road, Drogheda | €281,057 | 2022-12-21 |
| 12 Liscorrie Hall, Liscorrie Bog Lane, Drogheda | €238,750 | 2017-12-14 |
| 12 Lismore, Earlsfort, Blackrock | €180,617 | 2015-04-09 |
| 12 Lisnaree, Avenue Rd, Dundalk | €240,000 | 2023-11-14 |
| 12 Listoke Avenue, Ballymakenny Road, Drogheda | €245,561 | 2022-02-01 |
| 12 Listoke Elms, Ballymakenny Road, Drogheda | €311,640 | 2023-01-16 |
| 12 Listoke Pines, Ballymakenny Road, Drogheda | €334,856 | 2025-09-11 |
| 12 Listoke Wood, Ballymakenny, Co Louth | €392,070 | 2025-05-08 |
| 12 Longwood, Dublin Road Drogheda, County Louth | €270,000 | 2012-08-27 |
| 12 Loughantarve, Knockbridge, Dundalk | €142,500 | 2015-04-16 |
| 12 Lourdes Square, Drogheda, Co Louth | €120,000 | 2020-03-20 |
| 12 Malthouse Gardens, Castlebellingham, Louth | €117,000 | 2017-06-21 |
| 12 Manydown Close, Red Barns Rd, Dundalk | €225,000 | 2020-05-13 |
| 12 Manydown Close, Red Barns Road, Dundalk | €156,500 | 2013-12-19 |
| 12 Mariners Court, Cocklehill, Blackrock | €230,000 | 2026-05-18 |
| 12 Market Court, Dundalk St, Carlingford | €237,500 | 2022-11-14 |
| 12 Marlmont Gardens, Old Dublin Road, Dundalk | €240,088 | 2021-01-08 |
| 12 Marlmount Close, Dundalk | €361,233 | 2024-07-26 |
| 12 Marlmount Court, Dundalk | €286,343 | 2017-12-15 |
| 12 Marlmount Green, Old Dublin Road, Dundalk | €255,507 | 2018-05-01 |
| 12 Marlmount Park, Old Dublin Road, Dundalk | €334,802 | 2022-06-24 |
| 12 Marlmount Walk, Marlbog Road, Dundalk | €255,506 | 2019-06-13 |
| 12 Mary St North, Dundalk, Louth | €137,000 | 2018-11-30 |
| 12 Maryville, Scribblemore, Dunleer | €171,000 | 2020-11-10 |
| 12 Mcswiney St, Dundalk, Louth | €183,000 | 2020-11-09 |
| 12 Medebawn Court, Avenue Road, Dundalk | €290,749 | 2024-04-23 |
| 12 Mill Wharf, Drogheda, Co Louth | €100,000 | 2020-12-21 |
| 12 Moorehall Rise, Hale Street, Ardee | €215,000 | 2015-03-09 |
| 12 Mount Auburn Close, Bryanstown, Drogheda | €340,000 | 2024-10-30 |
| 12 Mount Sandford, Drogheda, Co Louth | €265,000 | 2019-09-24 |
| 12 Mount St Oliver, Drogheda, Co Louth | €145,000 | 2018-08-29 |
| 12 Mountain View, Dunleer, Louth | €365,000 | 2026-02-06 |
| 12 Mullach Alainn, Omeath | €189,100 | 2012-09-04 |
| 12 Mulladrillen, Hale Street, Ardee | €336,000 | 2025-08-26 |
| 12 New St, Dundalk, Louth | €164,000 | 2021-11-11 |
| 12 New St, Scotch Hall, Louth | €117,000 | 2017-09-12 |
| 12 Newtown Wood, Termonfeckin Road, Drogheda | €257,770 | 2022-09-06 |
| 12 Nicholas Court, Nicholas Street, Dundalk | €82,000 | 2019-09-09 |
| 12 Nicholas St, Dundalk, Louth | €76,000 | 2014-03-13 |
| 12 Norhalton, Raynoldstown Village, Dundalk | €387,665 | 2025-02-07 |
| 12 Oakland Park, Dundalk | €65,890 | 2012-04-12 |
| 12 Oaklawns, Dundalk | €125,000 | 2012-03-29 |
| 12 Old Muirhevna, Dundalk, Louth | €225,000 | 2022-12-07 |
| 12 Park Avenue, Dundalk, Co Louth | €355,000 | 2022-11-11 |
| 12 Park Dale Grange Rath, Drogheda, Louth | €200,000 | 2019-10-10 |
| 12 Park Glen, Grange Rath, Dublin Road Drogheda | €122,500 | 2016-07-01 |
| 12 Park Hill, Coulter Place, Armagh Rd. Dundalk | €305,000 | 2025-10-30 |
| 12 Park Hill, Coulter Place, Armagh Road | €176,211 | 2019-12-05 |
| 12 Park Villas, Dundalk, Co Louth | €265,000 | 2020-09-16 |
| 12 Pearse Park, Drogheda, Louth | €80,000 | 2014-09-15 |
| 12 Pearse Park, Dundalk, Louth | €105,000 | 2015-04-24 |
| 12 Pinnacle View, Mullavalley, Louth Village | €161,000 | 2015-08-28 |
| 12 Platten Road, Drogheda | €65,000 | 2014-06-06 |
| 12 Potters Field Close, Potters Field Cappocks Green, Ardee | €362,996 | 2026-01-28 |
| 12 Potters Field Court, Cappocks Green, Ardee | €466,960 | 2025-05-15 |
| 12 Potters Field Green, Cappocks Green, Ardee | €330,396 | 2023-12-15 |
| 12 Potters Field Walk, Cappocks Green, Ardee | €383,260 | 2025-07-11 |
| 12 Prestons Mill, Wellington Quay, Drogheda | €185,000 | 2023-05-05 |
| 12 Priory Hall, Dublin Road, Drogheda | €172,000 | 2026-06-11 |
| 12 Railway Crescent, Rampark, Jenkinstown | €225,453 | 2017-09-08 |
| 12 Rampartmill Apts, Dundalk, Louth | €150,000 | 2022-09-30 |
| 12 Rath Na Gloine, Dromiskin, Dundalk | €100,000 | 2015-01-08 |
| 12 Rathmullan Rd, Drogheda, Louth | €395,000 | 2024-01-05 |
| 12 Rivercourt, Drogheda, Louth | €210,000 | 2023-10-26 |
| 12 Riverside Crescent, Dundalk, Co Louth | €85,000 | 2014-07-03 |
| 12 Rivervale Grove, Dunleer, Louth | €165,000 | 2020-11-04 |
| 12 Rockfield Close, Ardee | €217,500 | 2010-12-22 |
| 12 Rockfield Close, Ardee, Louth | €237,500 | 2018-11-01 |
| 12 Rosehall, Crosslanes, Drogheda | €175,000 | 2013-09-10 |
| 12 Rossmore, Earlsfort, Blackrock | €352,422 | 2025-12-15 |
| 12 Sandy Grove, Blackrock, Dundalk | €325,000 | 2021-09-24 |
| 12 Scarlet Crescent, Drogheda, Louth | €125,000 | 2016-02-26 |
| 12 School Lane, Dunleer, Louth | €91,665 | 2015-07-16 |
| 12 Seabrook, Dromiskin, Louth | €425,000 | 2023-07-07 |
| 12 Seafield Lawns, Avenue Rd, Dundalk | €250,000 | 2023-08-29 |
| 12 Seagull Park, Clogherhead | €70,000 | 2018-01-11 |
| 12 Seatown Gardens, Dundalk, Louth | €250,000 | 2021-12-16 |
| 12 Seatown, Dundalk, Co Louth | €56,750 | 2011-07-22 |
| 12 Seaview Avenue, Cnoc Na Mara, Blackrock | €321,586 | 2020-10-05 |
| 12 Seaview Drive, Cnoc Na Mara, Golf Links Road | €334,801 | 2017-04-27 |
| 12 Seaview Heights, Cnoc Na Mara, Blackrock | €275,507 | 2018-11-20 |
| 12 Seaview Square, Cnoc Na Mara, Blackrock | €215,859 | 2018-07-18 |
| 12 Seaview Way, Cnoc Na Mara, Blackrock | €215,385 | 2019-09-30 |
| 12 Seven Winds, North Road, Drogheda | €427,312 | 2025-12-18 |
| 12 Shamrock Villas, Ballymakenny Road, Drogheda | €330,000 | 2025-04-08 |
| 12 Shelduck St, Aston Village, Drogheda | €200,000 | 2022-04-14 |
| 12 Shorecourt, Omeath, Louth | €297,000 | 2026-03-20 |
| 12 St Alphonsus Rd, Dundalk, Louth | €160,000 | 2018-05-23 |
| 12 St Alphonsus Villas, Dundalk, Co Louth | €216,000 | 2025-04-16 |
| 12 St Catherines, Sienna, Drogheda | €175,000 | 2022-12-15 |
| 12 St Malachys Villas, Dundalk, Louth | €285,000 | 2024-01-24 |
| 12 St Marks Terrace, Scarlet St, Drogheda | €271,000 | 2023-12-05 |
| 12 St Marks, Fair St, Drogheda | €155,000 | 2020-10-01 |
| 12 St Marys Road, Dundalk, Co Louth | €140,000 | 2020-09-28 |
| 12 St Michaels Tce, Clogherhead, Louth | €250,000 | 2025-10-22 |
| 12 St Patricks Terrace, Ardee, Louth | €260,000 | 2024-10-24 |
| 12 St Ronans Terrace, Castletown Rd, Dundalk | €410,000 | 2022-11-02 |
| 12 St. Gerard's Square, Dundalk | €50,000 | 2012-11-26 |
| 12 Stapleton Place, Dundalk, Louth | €305,000 | 2020-12-16 |
| 12 Strandhill, Clogherhead, Co Louth | €337,000 | 2019-06-06 |
| 12 Tain Court, Bridge St, Dundalk | €107,000 | 2018-12-07 |
| 12 The Ave, Martello Village, Drogheda | €210,000 | 2018-11-16 |
| 12 The Beeches, Clogherhead | €260,000 | 2010-04-01 |
| 12 The Boulevard, Raynoldstown Village, Dundalk | €330,044 | 2024-06-25 |
| 12 The Cedars, Avourwen Meadows, Drogheda | €260,000 | 2019-01-30 |
| 12 The Chesters, Termonfeckin Road, Drogheda | €392,070 | 2026-09-17 |
| 12 The Close, Highlands, Drogheda | €329,000 | 2022-09-29 |
| 12 The Close, Lennonstown Manor, Red Barns Rd | €240,000 | 2023-08-22 |
| 12 The Close, Mount Hamilton, Dundalk | €214,500 | 2019-12-03 |
| 12 The Cottages, Baltray, Co Louth | €183,000 | 2018-12-11 |
| 12 The Courtyard, Main St, Dunleer | €42,000 | 2013-12-17 |
| 12 The Courtyard, Mounthamilton, Carrick Road | €174,009 | 2019-05-02 |
| 12 The Drive, Riverbank, Drogheda | €295,000 | 2022-09-27 |
| 12 The Ferns, Blackrock, Dundalk | €460,000 | 2024-08-27 |
| 12 The Forge, Main St Lower, Dunleer | €127,500 | 2015-04-21 |
| 12 The Green, Lennonstown Manor, Red Barns Rd | €155,000 | 2018-10-24 |
| 12 The Green, Mount Hamilton, Carrick Road | €200,000 | 2018-04-06 |
| 12 The Green, Riverbank, Drogheda | €235,000 | 2022-02-16 |
| 12 The Grove, Martello Village, Drogheda | €118,943 | 2011-07-13 |
| 12 The Heights, Mount Hamilton, Carrick Road | €220,264 | 2019-06-27 |
| 12 The Laurels, Avourwen Meadows, Duleek Rd | €237,500 | 2017-05-09 |
| 12 The Laurels, Avourwen Meadows, Duleek Road | €149,780 | 2012-11-01 |
| 12 The Meadows, Point Rd, Dundalk | €190,000 | 2017-04-13 |
| 12 The Mews, Distillery Lane, Dundalk | €138,000 | 2014-07-23 |
| 12 The Moorings, Greenhills, Drogheda | €440,000 | 2026-03-18 |