What is the NAG?

The NAG (National Address Gazetteer) is a source of gazetteer data that is overseen and maintained by GeoPlace – a joint venture created by the Local Government Group and Ordnance Survey.

It is built by blending three existing datasets – local government’s address and street gazetteers: the NLPG (National Land and Property Gazetteer) and the NSG (National Street Gazetteer), along with Ordnance Survey’s OS MasterMap® Address Layer 2.

Through the creation of the NAG neither the public nor private sector have to choose between competing addressing products and in many instances it will significantly reduce licensing costs to those organisations who currently have to license more than one.

The National Address Gazetteer is available to the public sector under the PSMA (Public Sector Mapping Agreement), which will include signatories of both the MSA (Mapping Services Agreement) and the PGA (Pan-Government Agreement).

Within the private sector, once contracts are finalised, businesses both large and small are able to licence the National Address Gazetteer for their own internal and external use.

What this means is that for the first time, all public and private sector bodies will be referencing the same data, and through this reducing errors and duplications, saving time and money, and ultimately producing a better service for the taxpayer and/or consumer.

NSG GeoPlace
More information about the National Address Gazetteer can be found on Geoplace’s website