BS7666 is a British Standard that sets out the guidelines upon which the Local Land and Property Gazetteers (LLPGs) and Local Street Gazetteers (LSGs) are built. It sets out the standards on how to record Basic Land and Property Units (BLPUs), using the Unique Property Reference Number (UPRN), grid co-ordinates and one or more Land Property Identifiers (LPIs).
BS7666 defines the essential components of a gazetteer of geographic locations and provides a general model of spatial references based upon named spatial units in the UK. It defines the attributes of each geographic location to be recorded in a gazetteer, and the metadata associated with the gazetteer. It provides the basis for the other parts of BS7666 by defining general structures to enable gazetteers of a range of classes of geographic locations to be created in a consistent way. Specific gazetteers of particular classes of locations are defined in the other parts of BS7666.¹
Because of the standardised way that BS7666 enforces the recording of street and land & property information, each LLPG or LSG is able to be amalgamated into their corresponding national datasets i.e. the National Land and Property Gazetteer (NLPG) and the National Street Gazetteer (NSG).
BS7666 does not distinguish between residential properties that are vacant or occupied, if a plot of land is developed or vacant, whether the area is urban or rural, and addressable properties and non-addressable entities such as communications masts.
Find out about our training on how to manage your addresses according to BS7666.