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.
Pointer address database
The Pointer address database is the common standard address for every property in Northern Ireland.
OSNI Commercial development opportunities
Copyright licensing / publishing
Explore the origin and history of Northern Ireland and discover the location of place-names on the Place-names NI website.
Please see latest information below.
Please use the link below to see Land & Property Services (LPS) Mapping publications.
Land & Property Services (LPS) publishes information on Copyright and Intellectual Property Rights.
Related to Ordnance Survey of Northern Ireland
Most recent publications
Most recent news items
Access to information
How to request information from the Department of Finance including Freedom of Information (FOI) and the use of our Publication Scheme.