Historic buildings and monuments in Co. Longford
County Longford has 2,659 recorded archaeological monuments in the national Sites and Monuments Record; the 14 buildings below are the county's entries in the National Inventory of Architectural Heritage (NIAH) rated International or National, out of 842 recorded post-1700 structures county-wide.
Monuments to visit
Please note that many of these monuments may be on private land and may not be publicly accessible. When setting out to visit monuments please ensure that you wear appropriate footwear and clothing. Access to monuments without Visitor Services may be across uneven ground which may not be suitable for everyone and, in particular, wheelchair users.
- The centre interprets an Iron Age bog road that was built in the year 148 B.C. across the boglands of Longford, close to the River Shannon.
- An earth and timber castle constructed around 1199 by Richard de Tuite as part of the Anglo-Norman conquest of Longford.
NIAH buildings rated International or National
National Inventory of Architectural Heritage entries for Co. Longford, curated to buildings rated International or National.
| Name | Type | Period | Rating |
|---|---|---|---|
| (unnamed record) | aqueduct | 1810–1820 | National |
| Carrigglas Manor | gates/railings/walls | 1790–1805 | National |
| Carrigglas Manor | country house | 1835–1850 | National |
| Carrigglas Manor | stables, worker's house, farmyard complex | 1790–1805 | National |
| Castle Forbes | country house | 1660–1865 | National |
| Castlecor House | house | 1730–1770 | National |
| Corboy Presbyterian Church | church/chapel | 1725–1735 | National |
| Creevaghmore | country house | 1720–1750 | National |
| Fox Hall | church/chapel | 1620–1775 | National |
| Ledwithstown House | house | 1745–1750 | National |
| Saint Brigid's Catholic Church | church/chapel | 1878–1903 | National |
| Saint Mel's Catholic Cathedral | cathedral | 1840–1893 | National |
| Sean Connolly Barracks | store/warehouse | 1690–1730 | National |
| Tennalick House | house | 1700–1720 | National |
Plan a visit around Co. Longford
NIAH Buildings Open Data, captured June 2026; NMS Monuments to Visit, captured June 2026. Both data.gov.ie, CC-BY 4.0 (Dept of Housing, Local Government and Heritage). See methodology for the curation rule.