The Postcode Address File (PAF) is a database that contains all known "Delivery Points" and postcodes in the United Kingdom. The PAF is a collection of over 29 million Royal Mail postal addresses and 1.8 million postcodes. It is available in a variety of formats including FTP download and compact disc, and was previously available as Digital Audio Tape. As owner of the PAF, Royal Mail is required by section 116 of the Postal Services Act 2000 to maintain the data and make it available on reasonable terms. A charge is made for lookup services or wholesale supply of PAF data. Charges are regulated by Ofcom. It includes Small User Residential, Small User Organisation and Large User Organisation details. There have been requests as part of the Open Data campaign for the PAF to be released by the government free of charge.
The National Public Transport Access Node (NaPTAN) database is a UK nationwide system for uniquely identifying all the points of access to public transport in the UK. The database is closely associated with the National Public Transport Gazetteer.
Ordnance Survey of Northern Ireland (OSNI) was the official mapping agency of Northern Ireland. The agency ceased to exist separately on 1 April 2008 when it became part of Land and Property Services, an executive agency of the Northern Ireland Department of Finance and Personnel, along with the Rate Collection Agency, the Valuation and Lands Agency, and the Land Registry.
The OS MasterMap is the premier digital product of the Ordnance Survey. It was launched in November 2001. It is a database that records every fixed feature of Great Britain larger than a few metres in one continuous digital map. Every feature is given a unique TOID, a simple identifier that includes no semantic information. Typically each TOID is associated with a polygon that represents the area on the ground that the feature covers, in National Grid coordinates. OS MasterMap is offered in themed "layers", for example a road layer and a building layer, each linked to a number of TOIDs. Pricing of licenses to OS MasterMap data depends on: the total area requested, the layers licensed, the number of TOIDs in the layers, the period in years of the data usage.
A Local Land and Property Gazetteer (LLPG) is an address database maintained by local authorities, who are responsible for creating all addresses. However, until recently those same local authorities have not held a unified and consistent list of addresses within their areas. This has led to various services within individual local authorities maintaining separate and incompatible address databases.
OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. The geodata underlying the map is considered the primary output of the project. The creation and growth of OSM has been motivated by restrictions on use or availability of map data across much of the world, and the advent of inexpensive portable satellite navigation devices.
The National Spatial Address Infrastructure (NSAI) was a database proposed by the UK Office of the Deputy Prime Minister (ODPM) on 26 May 2005 with the intention of creating a single repository of addresses for the UK. The proposal encountered numerous objections, particularly from local authorities who argued that such a repository already existed in the form of the National Land and Property Gazetteer (NLPG). Currently proposals for the NSAI have been suspended.
The National Land and Property Gazetteer (NLPG) is an initiative in England and Wales to provide a definitive and consistent address infrastructure. Up until recently Great Britain has not held a single list of all addresses in the country, meaning that many government and private services have not been sure if addresses from differing sources refer to the same or different properties.
Address Point is a mapping/GIS data product supplied by Great Britain's national mapping agency, Ordnance Survey. It is based on the UK’s postal mail organisation, the Royal Mail, list of postal addresses, Postcode Address File (PAF). The most significant difference between Royal Mail list and Address Point is that Address Point includes the geographic coordinates of each postal address. This enables users to map the individual addresses.
The Mapping Services Agreement (MSA) is a licensing contract between local authorities in the United Kingdom and suppliers of geographic data. Most of its contents are covered by commercial in confidence requirements. The general outcome of the MSA, however, is the supply of geographic data to local authorities and the defining of licensing issues regarding address data.
The National Street Gazetteer (NSG) is a database of all streets in England and Wales compiled from the responsible highway authorities which is restricted to local authorities and statutory undertakers.
Georeferencing means that the internal coordinate system of a map or aerial photo image can be related to a geographic coordinate system. The relevant coordinate transforms are typically stored within the image file, though there are many possible mechanisms for implementing georeferencing. The most visible effect of georeferencing is that display software can show ground coordinates and also measure ground distances and areas.
The National Streetworks Gazetteer is a service provided in partnership between Ordnance Survey and British highway authorities – the County, City or District Councils – which provides information on each and every adopted highway in England and Wales. Different legislation exists for the system in Scotland.
Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose, which was to map Scotland in the wake of the Jacobite rising of 1745. There was also a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars. Since 1 April 2015 Ordnance Survey has operated as Ordnance Survey Ltd, a government-owned company, 100% in public ownership. The Ordnance Survey Board remains accountable to the Secretary of State for Business, Energy and Industrial Strategy. It was also a member of the Public Data Group.
Digimap is a web mapping and online data delivery service developed by the EDINA national data centre for UK academia. It offers a range of on-line mapping and data download facilities which provide maps and spatial data from Ordnance Survey, British Geological Survey, Landmark Information Group and OceanWise Ltd Ltd.,, Getmapping Ltd, the Environment Agency, OpenStreetMap, CollinsBartholomew Ltd, and various other sources.
Crown Copyright has been a long-standing copyright protection applied to official works, and at times artistic works, produced under royal or official supervision. In 2006, The Guardian newspaper's Technology section began a "Free Our Data" campaign, calling for data gathered by authorities at public expense to be made freely available for reuse by individuals. In 2010 with the creation of the Open Government Licence and the Data.gov.uk site it appeared that the campaign had been mostly successful, and since 2013 the UK has been consistently named one of the leaders in the open data space.
GeoPlace is an organisation (LLP) that oversees the production and maintenance of the national address and street gazetteers, which are created and maintained with input from all local authorities in England and Wales. GeoPlace is a public sector limited liability partnership between the Local Government Association (LGA) and Ordnance Survey.
The National Address Gazetteer is a database designed to provide a definitive source of publicly owned spatial address data for Great Britain. It is a culmination of Local Land and Property Gazetteers and other datasets: Address Layer 2 (AL2) and Royal Mail PAF data. The LLPGs, which make up a portion of the data, are created and maintained with input from all local authorities in England and Wales.
The ONS Open Geography portal from the Office for National Statistics (ONS) provides free and open access to the definitive source of geographic information products, web applications, story maps, services and APIs. All content is available under the Open Government Licence v3.0, unless otherwise stated.
The Unique Property Reference Number (UPRN) is a unique alphanumeric identifier for every spatial address in Great Britain and can be found in Ordnance Survey's AddressBase products. It provides a comprehensive, complete, consistent identifier throughout a property’s life cycle – from planning permission through to demolition. The UPRN contains no attribution or information about the property.
