| Casa Del Monte, Abbeylands, Ballyshannon | €92,500 | 2019-11-29 |
| Casa Del Monte, West End, Bundoran | €93,000 | 2017-03-27 |
| Casablanca, Loughnagin, Letterkenny | €470,000 | 2014-05-23 |
| Casburn House, The Commons, Lifford | €348,000 | 2024-10-21 |
| Cashe, Carndonagh, Co. Donegal | €10,000 | 2022-12-21 |
| Cashel Hill, Glencolmcille, Co Donegal | €152,500 | 2022-12-15 |
| Cashel Na Cor, Meenagory, Buncrana | €100,000 | 2013-09-06 |
| Cashel Village, Glencolumkille, Co Donegal | €86,500 | 2018-09-21 |
| Cashel, Ardara | €80,000 | 2011-03-02 |
| Cashel, Ardara, Co Donegal | €50,000 | 2014-02-07 |
| Cashel, Ballyraine, Letterkenny | €240,000 | 2022-06-16 |
| Cashel, Ballyshannon | €150,000 | 2023-10-09 |
| Cashel, Creeslough, Co Donegal | €160,000 | 2026-06-23 |
| Cashel, Creeslough, County Donegal | €190,000 | 2023-03-06 |
| Cashel, Creeslough, Letterkenny | €117,500 | 2018-06-22 |
| Cashel, Fanad, Letterkenny | €200,000 | 2022-06-28 |
| Cashel, Glentogher, Carndonagh | €100,000 | 2024-05-09 |
| Cashel, Gortahork, Co Donegal | €222,500 | 2021-01-11 |
| Cashel, Gortahork, Donegal | €40,000 | 2016-02-24 |
| Cashel, Gortahork, Letterkenny | €119,000 | 2021-06-14 |
| Cashel, Gottahork, Letterkenny | €80,000 | 2023-04-27 |
| Cashel, Kindrum Post Office, Fanad | €25,000 | 2018-07-23 |
| Cashel, Rossnowlagh | €118,000 | 2017-11-30 |
| Cashel, Rossnowlagh Upper | €300,000 | 2011-05-30 |
| Cashel, Rossnowlagh, Ballyshannon | €159,300 | 2026-06-03 |
| Cashel, Rossnowlagh, Co Donegal | €85,000 | 2022-02-23 |
| Cashel, Rossnowlagh, Donegal | €175,000 | 2021-12-13 |
| Cashelard, Ballyshannon | €145,000 | 2012-03-16 |
| Cashelard, Ballyshannon, Co Donegal | €175,000 | 2026-06-05 |
| Cashelard, Ballyshannon, Donegal | €375,000 | 2026-06-03 |
| Cashelard, Cavangarden, Ballyshannon | €87,000 | 2016-02-08 |
| Cashelcarn, Kilcar, Co. Donegal | €150,000 | 2025-12-10 |
| Cashelcarn, Kilcar, Donegal | €154,000 | 2016-08-09 |
| Casheleenan, Termon, Co Donegal | €74,000 | 2023-05-05 |
| Cashelenny, Pettigo, Donegal | €92,000 | 2017-04-20 |
| Cashelfean, Dunkineely, Donegal | €124,000 | 2017-05-05 |
| Cashelfeane, Dunkineely | €95,000 | 2010-12-23 |
| Cashelgay, Coolboy, Leterkenny | €20,625 | 2025-01-31 |
| Cashelgolan, Clooney, Portnoo | €40,000 | 2015-05-05 |
| Cashelgolgan, Boylagh, Maas | €127,753 | 2014-12-23 |
| Cashelhannaghan, Letterkenny, Donegal | €265,000 | 2016-06-30 |
| Cashelin, Castlefin, Donegal | €165,000 | 2023-03-16 |
| Cashellackan, Ballyshannon, Donegal | €46,800 | 2025-09-04 |
| Cashelmore Cottage, Ards Road, Creeslough | €80,000 | 2018-07-09 |
| Cashelmore, Creeslough | €40,000 | 2012-05-08 |
| Cashelnagor, Gortahork, Letterkenny | €40,000 | 2013-10-30 |
| Cashelnagor, Kilmacrennan, Dunlewy | €100,000 | 2026-03-18 |
| Cashelnagore Railway Station, Gortahork, Letterkenny | €80,000 | 2017-02-02 |
| Cashelnagore, Cortahork, Co Donegal | €50,000 | 2020-07-22 |
| Cashelnagore, Gortahork, Co Donegal | €265,000 | 2022-03-15 |
| Cashelnagore, Gortahork, Letterkenny | €135,000 | 2021-10-27 |
| Cashelnagore, Gortahork, Letterkenny Donegal | €119,000 | 2020-12-22 |
| Cashelnagorr, Gortahork, Co Donegal | €110,000 | 2023-05-02 |
| Cashelnegere, Letterkenny, Co Donegal | €216,000 | 2026-09-01 |
| Casheloogary, Inver | €115,000 | 2010-04-26 |
| Casheloogary, Inver, Co Donegal | €170,000 | 2026-07-07 |
| Casheloogary, Inver, County Donegal | €35,000 | 2021-01-12 |
| Cashelpreghan, Portsalon, Kerrkeen | €100,000 | 2020-06-15 |
| Cashelprehan Cottage, Cashelprehan Portsalon, Letterkenny | €147,000 | 2018-07-25 |
| Cashelreagh Glebe, Bruckless | €249,346 | 2024-05-07 |
| Cashelreagh, New Mills, Letterkenny | €65,000 | 2013-01-21 |
| Cashelreagh, Newmills, Letterkenny | €160,000 | 2018-04-12 |
| Cashelshanaghan, Letterkenny | €439,207 | 2022-08-02 |
| Cashelshanaghan, Letterkenny, Co. Donegal | €50,000 | 2019-04-09 |
| Cashelshanaghan, Letterkenny, County Donegal | €262,500 | 2015-05-15 |
| Cashelshanaguan, Letterkenny, Donegal | €260,000 | 2015-06-28 |
| Cashelshannaghan, Letterkenny | €190,000 | 2012-05-26 |
| Cashelshannaghan, Letterkenny, Donegal | €267,000 | 2015-07-08 |
| Cashelton, Dunkineely, Donegal | €142,000 | 2020-12-23 |
| Casheltown, Dunkineely | €10,412 | 2012-04-03 |
| Cashleenan, Kilmacrenan | €40,000 | 2010-08-17 |
| Cashlings, Kilcar, Co Donegal | €117,500 | 2018-10-24 |
| Castle Avenue, Buncrana, County Donegal | €49,500 | 2017-12-21 |
| Castle Doe, Creeslough, Letterkenny | €100,000 | 2021-05-27 |
| Castle Forward, Newtowncunningham, Co Donegal | €312,000 | 2026-08-24 |
| Castle Lodge, Castle St, Donegal Town | €103,000 | 2018-02-27 |
| Castle St, Donegal Town, Donegal | €140,000 | 2022-10-17 |
| Castle St, Ramelton, Donegal | €310,000 | 2025-06-10 |
| Castle Street, Ballyshannon, County Donegal | €115,000 | 2024-10-31 |
| Castle Street, Ballyshannon, Donegal | €166,000 | 2024-11-05 |
| Castle Street, Ramelton, Co Donegal | €425,000 | 2024-05-03 |
| Castle Wray, Letterkenny, Donegal | €150,000 | 2022-06-15 |
| Castlebane, Dunfanaghy, Co. Donegal | €130,000 | 2023-05-30 |
| Castleblaugh, Newtowncunningham | €240,000 | 2024-05-23 |
| Castleblaugh, Newtowncunningham, Donegal | €45,000 | 2022-07-08 |
| Castlecarey, Redcastle, Donegal | €126,250 | 2020-10-30 |
| Castlecary, Redcastle, Moville | €180,000 | 2023-08-10 |
| Castlecooley, Bohullion Upper, Burt | €321,586 | 2026-01-23 |
| Castlecooley, Burt, Co. Donegal | €43,500 | 2018-07-20 |
| Castlecooley, Burt, Donegal | €65,000 | 2019-06-06 |
| Castledoe, Creeslough | €142,500 | 2011-09-26 |
| Castledoe, Creeslough, Co Donegal | €50,000 | 2013-12-20 |
| Castledoherty, Ardara, Co Donegal | €170,000 | 2025-11-20 |
| Castledoherty, Ardara, Donegal | €280,000 | 2022-07-28 |
| Castledooey, Manorcunningham, Co Donegal | €204,000 | 2017-10-19 |
| Castledooey, St Johnston, Co Donegal | €495,000 | 2026-09-04 |
| Castlefin, Lifford, Co. Donegal | €47,750 | 2019-10-02 |
| Castleforward Cottage, Colehill, Newtowncunningham | €260,000 | 2021-09-30 |
| Castleforward, Newtowncunningham, Donegal | €269,000 | 2022-12-06 |
| Castlegolan, Clooney, Portnoo | €155,000 | 2019-05-24 |
| Castlegoland, Portnoo, Donegal | €307,000 | 2025-10-21 |
| Castlegragan, Carndonagh, County Donegal | €95,000 | 2015-05-12 |
| Castleloogary Back, Inver, Co Donegal | €60,000 | 2021-08-06 |
| Castleogary, Inver, Donegal | €97,500 | 2024-02-02 |
| Castlequarter, Inch Island, Lifford | €175,000 | 2023-12-18 |
| Castleray, Golf Course Road, Letterkenny | €210,000 | 2011-07-01 |
| Castlereagh, Bruckless, Donegal | €150,000 | 2019-07-03 |
| Castlereagh, Letterkenny, Co Donegal | €252,500 | 2025-08-12 |
| Castleshanaghan, Letterkenny | €506,828 | 2025-03-07 |
| Castleshanaghan, Letterkenny, Co Donegal | €70,000 | 2021-05-07 |
| Castlethird, Carrigans | €31,000 | 2013-03-12 |
| Castlethird, Carrigans, Lifford | €20,000 | 2018-01-24 |
| Castletown, Dunkineely | €177,500 | 2010-11-15 |
| Castletown, Dunkineely, Co Donegal | €183,000 | 2023-03-30 |
| Castletown, Dunkineely, Donegal | €128,000 | 2020-12-14 |
| Castletown, St Johnston, Lifford | €73,000 | 2023-10-18 |
| Castletown, St Johnton, Lifford | €190,000 | 2020-02-17 |
| Castletown, St. Johnston | €42,000 | 2012-05-08 |
| Castleview, Cashel, Creeslugh | €164,000 | 2018-10-22 |
| Castlewray, Letterkenny, Co Donegal | €150,000 | 2023-07-03 |
| Castlewray, Letterkenny, Donegal | €315,000 | 2024-05-10 |
| Castlle Ave, Buncrana, Donegal | €220,000 | 2025-06-05 |
| Castruse, Kileea, Donegal | €315,000 | 2023-10-19 |
| Cavan Hill Balindrait, Lifford, Donegal | €163,000 | 2024-05-03 |
| Cavan Hill, Rossgier, Lifford | €191,000 | 2021-10-07 |
| Cavan Lower, Killygordon, Co Donegal | €45,000 | 2020-10-23 |
| Cavan Lower, Killygordon, Donegal | €265,666 | 2026-08-05 |
| Cavan Lower, Killygordon, Lifford | €230,000 | 2022-12-20 |
| Cavan Upper, Killygordon | €138,000 | 2013-10-10 |
| Cavan Upper, Killygordon, Donegal | €155,000 | 2021-07-21 |
| Cavan Upper, Killygordon, Lifford | €165,000 | 2014-05-28 |
| Cavan, Dunkineely | €50,000 | 2012-10-31 |
| Cavan, Dunkineely, Donegal | €226,000 | 2017-08-31 |
| Cavan, Lifford, Co Donegal | €66,500 | 2020-10-07 |
| Cavanacan, St Johnston, Lifford | €1,100,000 | 2024-10-23 |
| Cavanacaw, St. Johnston, Lifford | €100,000 | 2018-12-07 |
| Cavangarden, Ballyshannon, Donegal | €390,000 | 2026-05-01 |
| Cavanhill, Lifford | €150,000 | 2010-11-09 |
| Cavanhill, Rossiger, Lifford | €299,500 | 2022-07-06 |
| Cavanweary, Castlefin, Donegal | €100,000 | 2016-06-30 |
| Cecilys, Ballyliffin, Donegal | €50,000 | 2021-12-15 |
| Cedar House, Crana Road, Buncrana | €182,500 | 2011-05-26 |
| Celtic House, East End, Bundoran | €70,000 | 2024-11-18 |
| Central House, Annagry, Letterkenny | €85,000 | 2024-12-20 |
| Ceol Na Cille, Stranorlar, Co Donegal | €180,000 | 2020-10-20 |
| Ceol Na Gaoithe, Ballyargus, Redcastle | €230,000 | 2025-03-25 |
| Ceol Na Gaoithe, Meencarrick Ardsbeg, Gortahork | €200,000 | 2025-07-03 |
| Ceol Na Mara, Carrowbeg, Lecamey | €109,000 | 2018-07-12 |
| Ceol Na Mara, Crossconnell, Clonmany | €200,000 | 2025-07-30 |
| Ceol Na Mara, Derrybeg, Letterkenny | €150,000 | 2021-12-10 |
| Ceol Na Mara, Tullan Strand Rd, Bundoran | €200,000 | 2021-02-24 |
| Chalet 1 Ardeskin Holiday Homes, Ardeskin, Old Laghey Rd | €85,000 | 2015-03-06 |
| Chalet 1 Gilroys, Downings, Letterkenny | €344,058 | 2021-07-12 |
| Chalet 1, Cloughglass, Burtonport Letterkenny | €110,000 | 2021-07-16 |
| Chalet 1, Figart, Dunfanaghy | €105,000 | 2016-07-13 |
| Chalet 1, Gortahork, Letterkenny | €80,000 | 2026-06-18 |
| Chalet 1, Rathmullen House, Rathmullan | €85,000 | 2013-05-28 |
| Chalet 1, Redcastle Hotel, Redcastle | €142,500 | 2016-10-27 |
| Chalet 10, Block 2, Redcastle Hotel | €159,120 | 2024-03-28 |
| Chalet 10, Gortahork, Letterkenny | €65,000 | 2020-10-23 |
| Chalet 11 Rathmullan House Cottage, Rathmullan, Donegal | €77,500 | 2014-12-23 |
| Chalet 14, Rathmullan House Hotel, Rathmullan | €195,000 | 2021-06-14 |
| Chalet 15 Downings, Co Donegal | €95,556 | 2015-07-10 |
| Chalet 2 Ardeskin Holiday Homes, Ardeskin, Donegal Town | €125,000 | 2021-01-12 |
| Chalet 2, Gortnacraw, Kerrykeel | €45,000 | 2021-05-26 |
| Chalet 2, Redcastle Hotel, Redcastle | €139,981 | 2013-12-30 |
| Chalet 2, Toragh Glen, Letterkenny | €149,000 | 2022-12-21 |
| Chalet 3, Redcastle, Donegal | €98,000 | 2016-02-01 |
| Chalet 4 Ardeskin Holiday Homes, Ardeskin, Donegal Town | €100,000 | 2024-04-10 |
| Chalet 4, Cnocnamurleog, Downings | €112,000 | 2019-08-02 |
| Chalet 4, Gortahork, Letterkenny | €62,500 | 2022-05-31 |
| Chalet 7, Gortahork, Letterkenny | €40,000 | 2017-04-19 |
| Chalet 7, Northern Counties, Westend Bundoran | €20,000 | 2017-10-19 |
| Chalet 8, Gortahork, Letterkenny | €36,000 | 2015-04-30 |
| Chalet 9, Binn, Whitestrand | €209,000 | 2025-10-30 |
| Chalet No 1 Gortnatragh, Fannad Road, Kerrykeel | €115,000 | 2022-07-14 |
| Chalet No 1, Ardsbeg, Gortahawk | €44,000 | 2020-02-21 |
| Chalet No. 4, Gortahork, Kilmacrennan | €25,000 | 2015-05-11 |
| Chalet, Clougherdiller, Burtonport | €52,500 | 2021-02-03 |
| Chalet, Cotteen, Derrybeg | €30,000 | 2018-12-06 |
| Chalets Sandfield, Ardara, Sandfield | €37,500 | 2024-06-04 |
| Chapel Brae, Mountcharles | €39,000 | 2014-12-17 |
| Chapel Gate, Kilcar, Co Donegal | €25,000 | 2020-04-09 |
| Chapel Glen, Clonmaney, County Donegal | €400,000 | 2025-02-28 |
| Chapel Glen, Clonmany, Donegal | €150,000 | 2025-03-26 |
| Chapel Lane, Crossroads, Killygordon | €287,500 | 2022-08-25 |
| Chapel Lane, Upper Ballybrack, Greencastle | €270,000 | 2024-05-29 |
| Chapel Rd, Brinalack, Donegal | €228,500 | 2026-07-31 |
| Chapel Rd, Brinlack, Donegal | €83,000 | 2021-05-20 |
| Chapel Rd, Convoy, Lifford Po | €162,000 | 2025-08-26 |
| Chapel Rd, Dungloe, Donegal | €25,000 | 2017-01-31 |
| Chapel Rd, Dungloe, Letterkenny | €100,000 | 2015-09-25 |
| Chapel Rd, Rathmullan, Letterkenny | €152,500 | 2021-07-19 |
| Chapel Rd, St Johnston, Lifford | €60,000 | 2020-04-23 |
| Chapel Road, Brinalack | €115,000 | 2012-11-01 |
| Chapel Road, Brinaleck, Co Donegal | €210,000 | 2024-08-29 |
| Chapel Road, Castlefinn, Donegal | €35,000 | 2014-03-19 |
| Chapel Road, Doochary, Lettermacaward | €35,000 | 2014-05-09 |
| Chapel Road, Dungloe | €20,000 | 2013-05-31 |
| Chapel Road, Dungloe, Co Donegal | €150,000 | 2018-01-03 |