6.3.18.1
A BLPU extent provenance is the basis for the definition of the polygon that represents the extent of the BLPU. Each BLPU extent polygon shall have at least one associated provenance. Therefore the inclusion of provenance Records within an LLPG is Optional or Conditional on the presence of BLPU extents. Details of valid provenance types are shown below:
“P”
Inferred from physical features
Map or coordinate based data
Imagery or geo-referenced map product
“O”
Occupancy
Residential property address file
Council tax; Electoral Register; Housing
“U”
Inferred from use
Commercial property address file
Business Rates
“T”
Registered title
Property ownership
HM Land Registry; local authority terrier
“L”
Unregistered land title
Property ownership
Asset Register
“F”
Formal tenancy agreement
Property ownership
Asset Register
“R”
Rental agreement
Property ownership
Asset Register
6.3.18.2
PROVENANCE_CODE = “P” must be assigned to the BLPU extent provenance in the following cases:
- If a Street BLPU polygon is captured.
- If a bulk data capture exercise is undertaken and the polygons are captured from base mapping.
6.3.18.3
If ownership data is used as the source material it is acceptable to use ‘Registered title’ “T” or other appropriate ownership provenance.