Ordnance Survey of Northern Ireland (OSNI) is the official producer of high quality, accurate and current geographic mapping data for Northern Ireland.
Spatial NI is a web based portal that facilitates sharing, using and developing geographic information.
The Pointer address database is the common standard address for every property in Northern Ireland.
Explore the origin and history of Northern Ireland and discover the location of place-names on the Place-names NI website.
Please use the link below to see Land & Property Services (LPS) Mapping publications.