Houses in bold are in Mark Bence-Jones

Ightermurragh Castle, Co Cork – ruin

Ileclash, Fermoy, Co Cork   http://aguidetoirishcountryhouses.com/2024/12/31/ileclash-fermoy-co-cork/

Inane, Roscrea, Co Tipperary https://aguidetoirishcountryhouses.com/2025/09/18/inane-roscrea-co-tipperary/

Inch House, Inch Island, Co Donegal  http://aguidetoirishcountryhouses.com/2025/01/08/inch-house-inch-island-co-donegal/

Inch House, Balbriggan, Co Dublin http://aguidetoirishcountryhouses.com/2025/01/13/inch-house-balbriggan-co-dublin/

Inch House, County Laois – accommodation https://aguidetoirishcountryhouses.com/2024/10/16/inch-house-county-laois-accommodation/

Inch, Thurles, Co Tipperary  – whole house rental https://aguidetoirishcountryhouses.com/2024/10/19/inch-house-thurles-county-tipperary-ireland-whole-house-rental/

Inchera, Little Island, Co Cork  http://aguidetoirishcountryhouses.com/2024/12/31/inchera-little-island-co-cork/

Inchiquin Castle, Co Cork – ruin  

Inchmore, Clara, County Offaly

Old Lighthouse, Inis Mór, Aran Islands, Co. Galway https://aguidetoirishcountryhouses.com/2025/11/03/old-lighthouse-inis-mor-aran-islands-co-galway/

Innis Beg, Skibbereen, Co Cork   http://aguidetoirishcountryhouses.com/2024/12/31/innis-beg-skibbereen-co-cork/

Innishannon, Co Cork – ‘lost’  http://aguidetoirishcountryhouses.com/2024/12/31/innishannon-co-cork-lost/

Innismore Hall, County Fermanagh 

Innisrath, Lisnaskea, County Fermanagh https://aguidetoirishcountryhouses.com/2025/01/30/innisrath-lisnaskea-county-fermanagh/

The Island, Kilmuckridge, County Wexford https://aguidetoirishcountryhouses.com/2026/03/02/the-island-kilmuckridge-county-wexford/

The Island, County Waterford https://aguidetoirishcountryhouses.com/2025/12/29/the-island-county-waterford/

Island House, Co Cork (see Little Island House)  

Island House, Castleconnell, Co Limerick https://aguidetoirishcountryhouses.com/2025/03/23/island-house-castleconnell-co-limerick/

Islanmore or Islandmore, Croom, Co Limerick https://aguidetoirishcountryhouses.com/2025/03/23/islanmore-or-islandmore-croom-co-limerick/

Issercleran (also known as St. Clerans), Craughwell, Co. Galway https://aguidetoirishcountryhouses.com/2025/02/01/issercleran-also-known-as-st-clerans-craughwell-co-galway/

Iveagh House (80 and 81 St. Stephen’s Green), Dublin – dept of Foreign Affairs https://aguidetoirishcountryhouses.com/2024/10/22/iveagh-house-80-and-81-st-stephens-green-department-of-foreign-affairs-dublin/