| Fully free admission until 31.12.20 to support the tourism offer nationally | Notes |
| Athenry Castle | |
| Battle of the Boyne / Oldbridge Estate | |
| Blasket Centre | |
| Carrowmore | No access to Visitor Centre |
| Castletown House & Parklands | Limits to numbers in house may be applied to avoid overcrowding |
| Ceide Fields | |
| Charlesfort | No access to internal spaces |
| Corlea Trackway | |
| Desmond Castle, Newcastlewest | No access to space above Banquet Hall |
| Dun Aonghusa | |
| Emo Estate | Emo House closed |
| Glebe Gallery | Glebe House closed |
| Glendalough Monastic site | No access to Visitor Centre |
| Hill of Tara site | No access to Visitor Centre |
| JFK Arboretum | No access to Visitor Centre |
| Jerpoint Abbey | No access to Visitor Centre |
| Kells Priory | |
| Kilmacurragh | |
| Loughcrew | Access to chamber closed for works |
| Mellifont Abbey | No access to Visitor Centre |
| National Botanic Gardens | |
| Newmills | |
| Ormonde Castle | |
| Pearse Museum, Rathfarnham | |
| Pearse Cottage | Restricted access to Cottage |
| Phoenix Park | |
| Portumna Castle & Gardens | |
| Rathfarnham Castle | |
| Roscrea Heritage grounds | House & Castle closed |
| Scattery Island | |
| Trim Castle grounds | Castle Keep closed |
| Fota Arboretum & Gardens | Fota House in the care of the Irish Heritage Trust |
