Historic Environment Viewer Maintenance

Date Released: Wednesday, December 15, 2021

The Department’s Historic Environment Viewer (HEV) is currently undergoing maintenance and it is not possible to search the viewer for NMS and NIAH location points at this time.  We apologise for any inconvenience caused.  Users may alternatively access the spatial data for the Archaeological Survey of Ireland and NIAH buildings surveys via the Open Data CSV file downloads at

National Monuments Service Sites and Monuments Record (SMR) Dataset

National Inventory of Architectural Heritage (NIAH) National Dataset