| Rosetta, Dublin Rd, Dundalk | €60,000 | 2025-03-18 |
| Rosewell, Rock Road, Dundalk | €190,000 | 2012-05-10 |
| Roskeagh, Kilcurry, Dundalk | €300,000 | 2026-04-24 |
| Roskenagh, Kilcurry, Dundalk | €207,500 | 2020-10-16 |
| Roslyn, Greenhills Villas, Drogheda | €320,000 | 2024-11-21 |
| Ross Mhuire, Knocknagoran, Omeath | €415,000 | 2025-01-15 |
| Rosslough, Corcreeghagh, Dundalk | €205,000 | 2021-09-27 |
| Rosslough, Dundalk | €77,000 | 2013-03-22 |
| Rosslough, Dundalk, Louth | €135,000 | 2017-08-22 |
| Rosslough, Inniskeen, Dundalk | €190,000 | 2022-05-26 |
| Rosslough, Louth, County Louth | €80,000 | 2021-09-16 |
| Rossmakay, Knockbridge, Dundalk | €245,000 | 2016-10-03 |
| Rossmakea, Knockbridge, Dundalk | €100,000 | 2025-02-28 |
| Rossmore, 3 Whitemill, Faughart | €318,000 | 2019-02-18 |
| Rovale House, Tullakeel, Ardee | €400,000 | 2020-06-01 |
| Roxbury House, Cartown, Termonfeckin | €1,350,000 | 2021-08-24 |
| Rugby House, Mill Rd, Dundalk | €260,000 | 2019-07-17 |
| Runnymede, Carrick Road, Dundalk | €360,000 | 2024-07-04 |
| Rushbrooke, Ravensdale, Dundalk | €490,000 | 2020-01-31 |
| Rushfield, Mount Ave, Dundalk | €615,000 | 2019-07-09 |
| Rushmere, Tallanstown, Dundalk | €375,000 | 2019-12-12 |
| Sacre Coeur, Channonrock Lane, Channonrock | €410,000 | 2022-04-28 |
| Saffron Lodge, Lynchs Cross, Tullyallen Drogheda | €600,000 | 2022-10-21 |
| Saint Louise, 26 North Strand, Drogheda | €16,000 | 2025-11-07 |
| Sals Pad, Ballyoonan, Omeath | €250,000 | 2024-12-20 |
| Salterstown, Annagassan | €120,000 | 2011-12-21 |
| Salterstown, Dunleer | €425,000 | 2015-03-19 |
| Salterstown, Dunleer, Co Louth | €275,000 | 2024-03-28 |
| Salterstown, Dunleer, Louth | €90,000 | 2017-09-12 |
| Salterstown, Togher, Co Louth | €107,500 | 2020-10-07 |
| San Aidene, Newtownbalregan, Dundalk | €410,000 | 2021-05-19 |
| San Cirillo, Cross Lanes, Drogheda | €162,500 | 2018-01-23 |
| San Francesco, Ballydonnell, Baltray | €665,000 | 2018-12-20 |
| San Giovanni, Drogheda Rd, Louth | €385,000 | 2023-08-08 |
| San Goretti, Dublin Rd, Drogheda | €890,000 | 2018-01-11 |
| San Lorenzo Newline Road, Monasterboice, Drogheda | €735,000 | 2019-11-28 |
| San Michelle, Dublin Rd, Drogheda | €460,000 | 2017-09-04 |
| San Pedro, Newtownbalreagan, Dundalk | €125,000 | 2013-04-19 |
| San Remo, Sandymount, Blackrock | €915,000 | 2025-03-27 |
| Sancta Maria, Blackrock, Dundalk | €480,000 | 2026-06-04 |
| Sancta Maria, Dublin Road, Dundalk | €86,000 | 2013-07-26 |
| Sandfield, Corcreaghy, Dundalk | €350,000 | 2020-05-29 |
| Sandford, Commons Rd, Dromiskin | €410,000 | 2024-03-28 |
| Sandpit House, Sandpit, Termonfeckin | €540,000 | 2015-12-18 |
| Sandpit, Milltown, Termonfeckin | €300,000 | 2013-02-13 |
| Sandpit, Termonfeckin, County Louth | €412,500 | 2022-11-07 |
| Sandy Lane, Blackrock, Dundalk | €140,000 | 2013-12-16 |
| Sandy Lane, Blackrock, Louth | €390,000 | 2021-02-26 |
| Sandylane, Blackrock, Dundalk | €245,000 | 2019-04-15 |
| Sandymount Dr, Blackrock, Dundalk | €325,000 | 2023-12-06 |
| Sandymount House, Blackrock, Louth | €555,008 | 2023-01-31 |
| Sandymount, Blackrock | €110,000 | 2013-10-25 |
| Sandymount, Blackrock, Dundalk | €450,000 | 2022-05-25 |
| Sandymount, Blackrock, Louth | €310,000 | 2016-04-20 |
| Santa Barbara, Ardee, Co Louth | €150,000 | 2015-04-28 |
| Santa Maria, Old Dublin Road, Dundalk | €250,000 | 2020-02-04 |
| Santilla, Dublin Rd, Dundalk | €390,000 | 2024-02-23 |
| Saoirse, Avenue Park, Avenue Rd Dundalk | €415,000 | 2025-05-09 |
| Saoirse, Coast Rd, Blackrock | €800,000 | 2020-01-28 |
| Savages, Dundalk Street, Carlingford | €200,000 | 2017-06-30 |
| Saverne House, Oriel Terrace, Dundalk | €220,000 | 2020-06-19 |
| Sawgrass Newline Road, Monasterboice, Co Louth | €550,000 | 2019-10-03 |
| Scibblemor, Barn Road, Dunleer | €315,000 | 2016-04-29 |
| Scotchgreen, Kilcurry, Dundalk | €230,000 | 2025-01-16 |
| Sea Breezes, Mountain Park, Carlingford | €690,000 | 2024-04-30 |
| Sea Point Lodge, Big Street, Termonfeckin | €140,000 | 2013-03-22 |
| Sea Rd, Castlebellingham, Louth | €233,000 | 2020-12-11 |
| Sea Road, Castlebellingham | €80,000 | 2011-04-01 |
| Sea Road, Castlebellingham, Co. Louth | €270,000 | 2025-03-21 |
| Sea View Lodge, Garrolagh, Clogherhed | €230,000 | 2020-11-13 |
| Sea View, Greenore Road, Carlingford | €212,500 | 2018-07-06 |
| Seabank, Castlebellingham | €160,000 | 2012-11-28 |
| Seabank, Castlebellingham, Co. Louth | €99,995 | 2016-08-30 |
| Seabank, Castlebellingham, Louth | €180,000 | 2021-03-09 |
| Seabeach House, Blackrock, Dundalk | €250,000 | 2014-07-10 |
| Seafield Lodge, Seafield Rd, Blackrock | €630,000 | 2026-01-05 |
| Seafield Rd Blackrock, Dundalk, Louth | €365,000 | 2019-05-02 |
| Seafield Rd, Blackrock, Louth | €420,000 | 2019-11-28 |
| Seafield Rd, Haggardstown, Blackrock | €550,000 | 2024-01-09 |
| Seafield Road, Blackrock | €338,000 | 2010-11-12 |
| Seamar, Mount Ave, Dundalk | €333,000 | 2017-05-17 |
| Seamount Lodge, Brittas, Grangebellew | €650,000 | 2021-01-21 |
| Sean O Carroll St, Ardee, Louth | €225,000 | 2019-06-28 |
| Sean O'carroll Street, Ardee | €205,000 | 2012-10-22 |
| Sean O'carroll Street, Ardee, Co Louth | €105,000 | 2016-01-27 |
| Sean Ocarroll St, Ardee, Louth | €145,000 | 2019-10-03 |
| Sean Tigh, Green Rd, Dromiskin | €188,000 | 2018-07-20 |
| Seapoint Lodge, Strand Rd, Termonfeckin | €725,000 | 2018-03-16 |
| Seapoint, Newtown, Termonfeckin | €442,000 | 2022-02-24 |
| Seapoint, Termonfeckin, Drogheda | €530,000 | 2025-04-04 |
| Seapoint, Termonfeckin, Louth | €1,000,000 | 2025-11-13 |
| Seashell, Ballinamara, Riverstown | €412,500 | 2021-07-30 |
| Seatown Place, Dundalk, Louth | €320,000 | 2023-02-23 |
| Seaview House, Gaultrimsland, Riverstown | €270,000 | 2017-05-25 |
| Seaview, Euston St, Greenore | €258,000 | 2014-11-14 |
| Seaview, Garrolagh, Clogherhead | €385,000 | 2015-02-25 |
| Secrin, Bush, Riverstown | €210,000 | 2024-03-01 |
| Seecrin House, Riverstown, Dundalk | €105,000 | 2021-08-17 |
| Selandia, Killineer, Drogheda | €750,000 | 2026-05-05 |
| Shalom, Drybridge, Drogheda | €410,000 | 2019-06-17 |
| Shamrock Brea, Hoeys Lane, Dublin Road Dundalk | €355,000 | 2023-11-03 |
| Shandon, Carrick Road, Dundalk | €310,000 | 2012-09-29 |
| Shangrilla, Port Oriel Estate, Clogherhead | €185,000 | 2014-08-05 |
| Shanley Gardens, Main Street, Duleek | €172,000 | 2017-08-02 |
| Shanlis, Ardee, Louth | €200,000 | 2015-12-23 |
| Shanliss, Ardee | €220,000 | 2011-08-08 |
| Shanliss, Ardee, Louth | €80,000 | 2022-11-30 |
| Shanmullagh, Hackballscross, Dundalk | €390,000 | 2025-08-19 |
| Shannonville, Dowdallshill, Dundalk | €312,000 | 2018-04-11 |
| Shanry, Greyacre Rd, Dundalk | €385,000 | 2021-03-01 |
| Shanvaus, Dublin Road, Drogheda | €260,000 | 2012-05-31 |
| Shearwater House, Sunhill, Termonfeckin | €450,000 | 2021-05-05 |
| Sheelagh Hackballscross, Dundalk, Louth | €269,950 | 2018-05-15 |
| Sheelagh, Hackballscross, Dundalk | €260,000 | 2018-10-17 |
| Sheelagh, Mackballscross, Dundalk | €174,000 | 2018-12-19 |
| Sheelin House, Carrick Rd, Dundalk | €512,500 | 2020-07-23 |
| Sheelin, Dublin Road, Dundalk | €297,500 | 2023-03-28 |
| Sheelin, Greenmount, Castlebellingham | €77,000 | 2017-03-01 |
| Sheepgrange Cottage, Drogheda, Co Louth | €300,000 | 2016-11-25 |
| Sheepgrange, Drogheda, Co Louth | €325,000 | 2023-02-14 |
| Sheepgrange, Drogheda, Louth | €254,000 | 2017-11-23 |
| Sheepgrange, Townley Hall, Drogheda | €185,000 | 2025-11-25 |
| Sheepgrange, Tullyallen, Drogheda | €428,000 | 2026-01-12 |
| Sheepwalk, Louth Village, Louth | €417,500 | 2010-04-15 |
| Sheetland Road, Termonfeckin, County Louth | €375,000 | 2016-06-14 |
| Sheetlands, Sheetland Road, Termonfeckin Drogheda | €230,000 | 2016-07-14 |
| Sheetrim House, Ballymakellett, Ravensdale | €487,500 | 2021-01-15 |
| Shekinah, 25 Wynnes Terrace, Dundalk | €180,000 | 2025-06-06 |
| Shelagh, Hackballscross, Dundalk | €150,000 | 2023-03-24 |
| Shelling Cottage, Shelling Hill, Templetown Carlingford | €120,000 | 2017-07-21 |
| Shetland Road, Termonfeckin, Drogheda | €340,000 | 2017-07-17 |
| Shilties Lough, Greenore Road, Carlingford | €505,000 | 2018-10-25 |
| Ship St, Drogheda, Louth | €16,000 | 2015-11-04 |
| Shore Lodge, Lower Shore, Lislea | €290,000 | 2020-10-20 |
| Shore Rd, Greenore, Louth | €410,000 | 2021-05-31 |
| Shore Rd, Templetown, Carlingford | €550,000 | 2023-09-21 |
| Shore Rd, Templetown, Louth | €225,000 | 2014-05-19 |
| Shore Road, Templetown, Carlingford | €140,000 | 2018-05-17 |
| Shorecourt, Omeath | €176,212 | 2014-04-02 |
| Shorecourt, Omeath, Louth | €176,212 | 2014-04-02 |
| Shortstone, Hackballscross, Dundalk | €315,000 | 2025-08-14 |
| Sillogue House, Monasterboice | €300,000 | 2013-10-24 |
| Sillogue House, Sillogue, Monasterboice | €725,000 | 2021-12-22 |
| Sillogue, Monasterboice, Drogheda | €500,000 | 2024-12-18 |
| Silogue Lane, Monasterboice, Drogheda | €390,000 | 2024-02-08 |
| Silver Birches, Kilpatrick, Ardee | €385,000 | 2017-11-30 |
| Silverhill House, Ardee, Co Louth | €260,000 | 2020-04-03 |
| Silverhill, Ardee, Louth | €155,000 | 2016-12-15 |
| Silverhill, Kells Rd, Ardee | €400,000 | 2022-10-26 |
| Site 2 Allenwood, Tullyallen, Drogheda | €293,106 | 2010-12-16 |
| Site At Seagull Park, Clogherhead | €10,000 | 2012-10-03 |
| Site No 8 Potters Field Walk, Cappocks Green, Ardee | €383,259 | 2025-05-09 |
| Site No. 15, Mullach Alainn, Omeath | €65,000 | 2015-03-23 |
| Site No. 31 Rosehall, Crosslanes, Drogheda | €158,590 | 2015-01-06 |
| Site No.4 Seven Winds, North Road, Drogheda | €427,300 | 2025-06-13 |
| Six The Cairns, Beaubec Dublin Rd, Drogheda | €365,000 | 2018-07-17 |
| Skeaghmore House, Dysart Togher, Co Louth | €90,000 | 2019-05-03 |
| Skibblemore, Barn Road, Dunleer | €85,000 | 2012-07-05 |
| Skibblemore, Dunleer, Louth | €327,000 | 2024-12-16 |
| Sleuth Wood, Shilties Louth, Carlingford | €790,000 | 2025-05-26 |
| Sliabh Dubh Castle Lane, Saltertown, Dunleer | €400,000 | 2018-02-13 |
| Sliabh Ruadh, Ballymakellett, Ravensdale | €330,000 | 2022-11-17 |
| Slieve Hackballscross, Dundalk, Louth | €183,000 | 2016-08-30 |
| Slieve View, Louth Hall, Tallanstown | €171,000 | 2014-07-18 |
| Slieve, Hackballscross, Dundalk | €75,000 | 2024-06-21 |
| Slieveboy, Dunleer, Louth | €360,000 | 2018-12-10 |
| Slievenalough, Jenkinstown, Dundalk | €125,000 | 2019-02-13 |
| Smaremore, Drogheda, County Louth | €120,000 | 2014-09-16 |
| Smarmore Castle, Smarmore, Ardee | €500,000 | 2015-05-19 |
| Smarmore, Ardee, Co.louth | €620,000 | 2025-09-05 |
| Smarmore, Ardee, County Louth | €390,000 | 2020-05-05 |
| Smarmore, Ardee, Louth | €442,000 | 2025-06-19 |
| Smarmore, Drogheda, Louth | €220,000 | 2023-09-27 |
| Smithstown House, Julianstown, Drogheda | €500,000 | 2016-06-27 |
| Solas Mo Chroi, Rock Rd, Blackrock | €365,000 | 2016-04-18 |
| Solmas, Louth Village, Dundalk | €145,000 | 2022-04-11 |
| Sonacherra, Avenue Rd, Dundalk | €220,000 | 2015-12-18 |
| Sonas, Mountain Park, Carlingford | €950,000 | 2023-11-03 |
| Sonas, Windmill Cottages, Termonfeckin | €235,000 | 2014-04-02 |
| South Commons Road, Carlingford, Co Louth | €400,000 | 2020-10-05 |
| South Commons, Carlingford | €210,000 | 2016-01-29 |
| South Commons, Carlingford, Co Louth | €270,000 | 2022-02-18 |
| South Commons, Carlingford, Louth | €500,000 | 2026-05-22 |
| South Commons, Rooskey Rd, Carlingord | €435,000 | 2024-07-14 |
| South Promenade, Knocknagoran, Omeath | €300,000 | 2025-02-14 |
| Southend, Blackrock, Co Louth | €710,000 | 2025-05-22 |
| Southend, Blackrock, Dundalk | €600,000 | 2020-04-28 |
| Southend, Blackrock, Dundlak | €300,000 | 2015-04-01 |
| Southgate House, Castlebellingham, County Louth | €370,000 | 2024-02-19 |
| Southgate Mews, Castlebellingham, Co Louth | €320,000 | 2025-09-09 |
| Spencer Hill Cottage, Williamstown, Casltebellingham | €232,000 | 2023-01-31 |
| Spencer Hill, Williamstown, Castlebellingham | €260,000 | 2023-09-22 |
| Spencer House, Williamstown, Kilsaron | €850,000 | 2015-02-12 |
| Spire View House, Cartown Rd, Ballymakenny | €610,000 | 2024-11-14 |
| Sportmans Hall, Armagh Road, Dundalk | €167,000 | 2010-05-20 |
| Sportmans Hall, Dundalk, Co Louth | €45,000 | 2020-11-10 |
| Sportmans Hall, Kilcurry Rd, Dundalk | €150,000 | 2026-07-09 |
| Sportsman Hall, Dundalk, Louth | €230,000 | 2023-03-23 |
| Sportsmans Hall, Kilcurry Rd, Dundalk | €227,000 | 2023-11-16 |
| Sportsmans Hall, Lisdoo Rd, Dundalk | €176,000 | 2015-11-13 |