| Nymphsfield, Cong, Mayo | €195,000 | 2015-10-22 |
| O'mara's Cottage, Glensaul, Tourmakeady | €15,900 | 2019-07-11 |
| Oak Lodge, Corlummin, Foxford | €560,000 | 2020-02-28 |
| Oak Lodge, Westport Road, Castlebar | €466,960 | 2025-06-23 |
| Oatlands House, Grove Road, Bonniconlon | €260,000 | 2018-01-26 |
| Ocean View, Church Rd, Belmullet | €205,000 | 2021-10-08 |
| Ocean View, Dooghmakeon, Louisburgh | €262,000 | 2024-12-20 |
| Oconnors Hotel, Main St, Swinford | €120,000 | 2024-01-29 |
| Octagon, Westport, Mayo | €290,000 | 2021-06-11 |
| October Cottage Station Road, Foxford, Ballina | €123,770 | 2014-12-05 |
| Ogham, Laughty, Ballina | €343,000 | 2023-11-20 |
| Olcote, Rathbawn Rd, Castlebar | €140,000 | 2021-05-14 |
| Old Castle View, Drumsheel, Cong | €350,000 | 2025-11-05 |
| Old Castlebar Road, Swinford, County Mayo | €90,000 | 2016-12-13 |
| Old Cottage, Dugort, Achill | €140,000 | 2017-12-20 |
| Old Fire Station, Crossmolina, Co Mayo | €45,000 | 2024-09-23 |
| Old Forge House, Market St, Killala | €195,000 | 2026-05-12 |
| Old French Road, Belleek, Ballina | €105,000 | 2015-05-13 |
| Old French Road, Bohernasup, Ballina | €230,000 | 2013-05-10 |
| Old French Road, Faranoo, Ballibna | €257,500 | 2010-10-29 |
| Old Head, Louisberg | €95,700 | 2014-10-20 |
| Old House, Aughalsgheen Tipp, Belmullet | €260,000 | 2024-07-29 |
| Old Park, Castlemcgarrett, Claremorris | €235,000 | 2025-04-24 |
| Old Parocial House, Frenchbrook, Kilmaine | €67,500 | 2024-02-01 |
| Old Rd Cottage, Knappaghmore, Westport | €378,000 | 2015-10-22 |
| Old Rectory, Nymphsfield, Cong | €475,000 | 2018-07-02 |
| Old Residence, Bonniconlon, Ballina | €80,000 | 2017-12-20 |
| Old School House, Bouris, Kilshallagh Westport | €70,000 | 2017-03-16 |
| Old School House, Cloonliffen, Ballinrobe | €130,000 | 2017-04-20 |
| Old School House, Derrendafderg Srah, Claremorris | €165,000 | 2022-12-16 |
| Old School House, Kilmaine, Co Mayo | €95,000 | 2020-07-30 |
| Old School House, Kilsallagh, Westport | €222,000 | 2017-12-18 |
| Old School Lodge, Ballina Rd, Bangor Erris | €80,000 | 2015-08-18 |
| Old School Murrisk Westport Co Myo, Murrisk Westport, Co Mayo | €62,500 | 2022-02-28 |
| Old Schoolhose, Cregganbawn, Louisburgh | €50,000 | 2020-11-24 |
| Old Surgery, Mulranny, Co Mayo | €150,000 | 2016-03-21 |
| Old Village Road, Derrycoosh, Castlebar | €260,000 | 2017-01-20 |
| Old Walls, Carraholly, Rosmoney | €262,500 | 2021-03-05 |
| Oldcastle, Co Mayo | €65,000 | 2026-05-20 |
| Oldcastle, Meelick, Swinford | €126,000 | 2017-09-21 |
| Ols School House, Claremorris, Ballyfarna | €274,000 | 2022-12-14 |
| Oory, Taugheen, Claremorris | €25,000 | 2021-11-02 |
| Oughtouse, Straide, Foxford | €85,000 | 2017-10-11 |
| Oughty Drummin, Westport, Mayo | €170,000 | 2016-05-27 |
| Oughty, Drummin, Westport | €133,000 | 2025-12-08 |
| Oughty, Liscarney, Westport | €70,000 | 2026-05-14 |
| Oulouge, Callow, Foxford | €365,000 | 2021-11-19 |
| Our Lady Of Apostles, 49 Elm Park, Knock Road | €310,000 | 2020-08-25 |
| Our Lady Of Apostles, 51 Elm Park, Knock Road | €195,000 | 2022-11-04 |
| Our Lady Of Apostles, 52 Elm Park, Knock Road Claremorris | €291,000 | 2024-10-17 |
| Overcroft, Woodfield, Kilkellly | €76,776 | 2015-07-21 |
| Owenduff, Mulranny | €57,790 | 2012-11-30 |
| Owenduff, Tonragee, Westport | €60,000 | 2026-03-10 |
| Owenwee, Wesport, Mayo | €397,500 | 2022-11-02 |
| Owenwee, Westport | €265,000 | 2011-09-21 |
| Owenwee, Westport, Mayo | €285,000 | 2019-06-25 |
| Oyster Bay House, Claggan Island, Bunnahowen Ballina | €100,000 | 2019-08-12 |
| Paddock Rd, Castlebar St, Westport | €302,500 | 2022-02-16 |
| Paddy Holmes Lane, Killala Rd, Belleel | €215,000 | 2016-03-24 |
| Paddys Bar Apt, Aidan Street, Kiltimagh | €70,000 | 2022-03-03 |
| Paddys House, Lisduff, Kiltimagh | €40,000 | 2020-04-07 |
| Palm Cottage, Lavey Beg (orse Ballagh Street), Charlestown | €83,000 | 2020-09-04 |
| Palmsprings, Knock, Claremorris | €58,000 | 2020-07-15 |
| Palmwood House, Kiltimagh, Mayo | €120,000 | 2016-06-09 |
| Palos Hills, Curragh, Castlebar | €180,000 | 2013-11-28 |
| Panacea, The Valley, Dugort Achill | €280,000 | 2016-04-07 |
| Park New, Castlemacgarrett, Ballindine | €275,000 | 2021-03-29 |
| Park Rd, Kiltimagh, Mayo | €290,000 | 2023-07-12 |
| Park Rd, Swinford, Mayo | €277,000 | 2025-06-06 |
| Park Road, Kiltimagh | €19,046 | 2011-04-25 |
| Park Road, Swinford | €116,000 | 2013-04-12 |
| Park Road, Swinford, Co Mayo | €90,000 | 2024-05-23 |
| Park Road, Swinford, County Mayo | €110,000 | 2016-12-20 |
| Park View House, Neale Rd, Ballinrobe | €161,000 | 2022-06-21 |
| Park, Carracastle, Ballaghaderreen | €26,000 | 2021-01-29 |
| Parkatleva, Balla Road, Claremorris | €250,000 | 2021-09-27 |
| Parkbawn, Gortmelia, Barnatra | €40,879 | 2023-06-06 |
| Parkboy, Ballyhean, Castlebar | €350,000 | 2025-02-06 |
| Parke, Carracastle, Ballaghaderreen | €185,000 | 2026-02-23 |
| Parke, Castlebar | €158,590 | 2019-10-24 |
| Parke, Castlebar, Co Mayo | €385,000 | 2025-12-10 |
| Parke, Castlebar, Mayo | €275,000 | 2016-09-15 |
| Parke, Claremorris | €160,000 | 2013-07-19 |
| Parkleva, Claremorris, County Mayo | €252,200 | 2015-06-25 |
| Parknew, Castlemagarret, Claremorris | €140,000 | 2014-05-21 |
| Parochial House, Brickens, Claremorris | €205,000 | 2025-07-29 |
| Parochial House, Glenhest, Newport | €63,000 | 2018-07-31 |
| Parrkatleva, Claremorris, County Mayo | €50,000 | 2020-02-07 |
| Parsons Apt 2, Castle St, Castlebar | €30,000 | 2015-04-24 |
| Parsons Apt, Castle St, Castlebar | €30,000 | 2015-04-24 |
| Partry House, Claremorris, Mayo | €825,000 | 2015-07-08 |
| Partry Lodge, Partry, Mayo | €200,000 | 2015-07-08 |
| Partry Post Office, Ballynanerroon Beg, Partry | €266,000 | 2026-05-12 |
| Patrician Park, Castlebar, Co Mayo | €235,000 | 2025-05-16 |
| Patrician Park, Newport Rd, Castlebar | €150,000 | 2019-10-17 |
| Pattenspark, Ballyhaunis | €120,000 | 2018-09-10 |
| Pawn Office Lane, Pearse Street, Ballina | €125,000 | 2010-03-05 |
| Peace Haven, Tonragee West, Achill | €140,000 | 2021-06-11 |
| Pearse St, Ballina | €32,500 | 2011-11-23 |
| Pearse Street Lower, Ballina, Co. Mayo | €300,000 | 2025-06-03 |
| Penrose Place, Upper Connolly Street, Ballina | €53,000 | 2016-11-24 |
| Peter St, Westport, Mayo | €135,000 | 2019-02-26 |
| Peter Street, Westport | €142,000 | 2011-05-11 |
| Peter Street, Westport, Co. Mayo | €310,000 | 2024-08-16 |
| Pheasant Hill, Westport Rd, Castlebar | €310,000 | 2019-01-25 |
| Pheasant Hill, Westport Road, Castlebar | €170,000 | 2013-07-23 |
| Pheasanthill, Castlebar, County Mayo | €150,000 | 2018-01-11 |
| Pheasanthill, Castlebar, Mayo | €380,000 | 2023-11-23 |
| Phoeba, Pound Rd, Castlebar | €65,000 | 2015-09-11 |
| Pier House, Rossport, Belmullet | €113,500 | 2021-06-09 |
| Pier Rd, Lecanvey, Westport | €130,000 | 2014-09-01 |
| Pine Croft, Woodpark, Glencorrib Shrule | €175,000 | 2014-10-02 |
| Pine Lodge, Westport Road, Castlebar | €383,260 | 2022-10-19 |
| Pine Tree Lodge, Cloongee, Foxford | €265,000 | 2025-04-07 |
| Pinewood Villa, Knock, Claremorris | €40,000 | 2017-03-23 |
| Pipedream, Summerhill, Carrowmore Lacken | €187,000 | 2017-01-27 |
| Ploughouse, Summerhill, Ballyglass | €164,700 | 2015-07-31 |
| Ploveruale, Breaffy, Castlebar | €427,500 | 2023-05-19 |
| Pollagh, Keel, Achill | €286,000 | 2024-01-29 |
| Pollagh, Keel, Achill Island | €185,000 | 2025-12-19 |
| Pollanalty East, Cloonfad, Ballyhaunis | €82,000 | 2026-03-05 |
| Pollaniska, Claremorris, Mayo | €410,000 | 2022-08-11 |
| Pollavaddy Balla, Mayo | €45,000 | 2024-09-02 |
| Pollavaddy, Balla | €60,000 | 2011-09-02 |
| Pollawarla, Bofeenaun, Mayo | €137,500 | 2016-11-17 |
| Pollbaun, Hollymount, Co Mayo | €65,000 | 2020-02-07 |
| Pollbaun, Hollymount, County Mayo | €44,000 | 2015-04-01 |
| Polliniska, Claremorris | €152,500 | 2012-08-24 |
| Pollnabinna House, Gortjordan, Shrule | €170,000 | 2019-12-13 |
| Pollnacroaghy, Ballyhaunis | €55,000 | 2011-06-21 |
| Pollnacroaghy, Ballyhaunis, Co Mayo | €170,000 | 2025-04-28 |
| Pollnacroaghy, Ballyhaunus | €37,000 | 2012-08-13 |
| Pollodoohy &, Carrowkeely, Crossmolina | €40,000 | 2011-07-06 |
| Pollovaddy, Balla | €92,000 | 2013-07-23 |
| Pollranny East, Achill, Mayo | €71,000 | 2021-07-08 |
| Pollranny, Achill Sound, Achill | €145,000 | 2018-12-11 |
| Pollranny, Achill Sound, Mayo | €20,000 | 2021-02-02 |
| Pollranny, Achill Sound, Westport | €32,500 | 2020-09-17 |
| Pollronahan Beg, Kiltimagh, County Mayo | €30,000 | 2016-09-02 |
| Polranny Sweeney, Achill, Mayo | €197,000 | 2021-08-12 |
| Polranny, Achill Sound, Co Mayo | €175,000 | 2018-10-08 |
| Polranny, Achill Sound, Westport | €148,000 | 2010-04-23 |
| Polranny, Achill, Co Mayo | €90,000 | 2023-09-19 |
| Polronaghane Mor, Kiltimagh, Mayo | €140,000 | 2019-06-21 |
| Pontoon Rd, Castlebar, Mayo | €230,139 | 2024-09-23 |
| Pontoon Rd, Foxford, Mayo | €230,000 | 2023-11-16 |
| Pontoon Road, Castlebar | €731,278 | 2024-08-08 |
| Pontoon Road, Castlebar, Co Mayo | €60,000 | 2017-08-18 |
| Pontoon Road, Castlebar, County Mayo | €58,333 | 2022-09-12 |
| Pontoon Road, Foxford, Co Mayo | €116,000 | 2018-04-10 |
| Pontoon, Co Mayo | €100,000 | 2023-12-21 |
| Poppy Cottage, The Quay, Westport | €146,000 | 2018-02-06 |
| Portach, Letterbrock, Liscarney | €155,000 | 2020-09-21 |
| Portacloy, Carrowteigue, Ballina | €174,000 | 2025-01-28 |
| Portagh, Mayo Abbey, Claremorris | €330,000 | 2023-09-08 |
| Portagh, Mayo Abbey, Mayo | €129,000 | 2019-04-30 |
| Portland Cottage, Swinford Rd, Foxford | €200,000 | 2025-01-10 |
| Portroyal, Partry, Claremorris | €280,000 | 2023-12-15 |
| Porturlin, Ballina, Co Mayo | €20,000 | 2019-01-25 |
| Porturlin, Ballina, Mayo | €95,000 | 2017-08-28 |
| Pound Rd, Carrabaun, Westport | €420,000 | 2019-08-30 |
| Pound Rd, Carrowbaun, Westport | €359,500 | 2023-08-25 |
| Pound Road, Castlebar | €110,000 | 2012-10-19 |
| Pound Road, Castlebar, County Mayo | €250,000 | 2026-04-20 |
| Pound St, Swinford, Mayo | €165,000 | 2021-09-03 |
| Pound Street, Foxford | €30,000 | 2012-11-12 |
| Prague House, Ballindine, Mayo | €110,000 | 2021-05-05 |
| Prague, James St, Kiltimagh | €50,000 | 2020-06-03 |
| Prague, Newport Road, Castlebar | €107,000 | 2019-10-11 |
| Prebane, Attymachugh, Foxford | €102,000 | 2018-03-29 |
| Prebaun, Attymachugh, Foxford | €65,000 | 2021-03-31 |
| Prebaun, County Mayo | €48,000 | 2012-11-27 |
| Priesthouse, Doohoma, Ballina | €115,000 | 2016-04-13 |
| Primrose Hill, Treanaglaragh, Kiltimagh | €170,000 | 2017-12-20 |
| Primrose Lodge, Cahir, Kiltimagh | €165,000 | 2021-09-03 |
| Prison North, Balla, Castlebar | €167,500 | 2025-05-28 |
| Prison South, Balla, County Mayo | €350,000 | 2021-01-19 |
| Prison, Balla | €100,000 | 2011-05-21 |
| Prizon Rd, Balla, Castlebar | €90,000 | 2019-08-22 |
| Prizon Road, Balla, Castlebar | €155,000 | 2013-08-21 |
| Prizon, Balla | €115,000 | 2015-01-30 |
| Prizon, Balla, Co. Mayo | €25,000 | 2015-03-04 |
| Property At Carter Square, Carter Square, Belmullet | €29,500 | 2015-04-10 |
| Property At Munigelly, Ballycastle | €90,000 | 2012-07-25 |
| Prospect Ave, Westport, Mayo | €165,000 | 2016-01-19 |
| Prospect House, Prospect, Westport | €273,422 | 2023-06-20 |
| Prospect Lodge And Roe Island, Enniscoe, Castlehill | €289,990 | 2010-10-08 |
| Prospect, Westport, Co Mayo | €495,000 | 2018-10-03 |
| Providance Rd, Foxford, Mayo | €73,000 | 2021-07-12 |
| Providence Rd, Foxford, Mayo | €39,000 | 2024-03-15 |
| Providence Road, Foxford, Co Mayo | €200,000 | 2026-02-24 |
| Providence Villa, Drum, Knock | €300,000 | 2020-09-12 |
| Prughlish, Bofeenaun, Ballina | €35,000 | 2014-06-06 |
| Pulathomas, Ballina, Mayo | €240,000 | 2026-08-28 |
| Pulgloss, Askelane, Louisburgh | €87,000 | 2015-10-19 |
| Pulgloss, Louisburgh, Co Mayo | €77,500 | 2019-06-21 |
| Pulgloss, Roonah Point, Louisburgh | €170,000 | 2019-12-18 |
| Pullagurrane, Barnatra, Ballina | €90,000 | 2025-01-09 |
| Pullagurraun, Barnatra, Ballina | €132,000 | 2024-06-17 |
| Pullamarla, Bofeenaun, Ballina | €275,000 | 2024-07-17 |