There are typically around 2 million properties shown in English and Welsh local rating lists at any one time.
Over the life of a list some properties will come and go, whilst other may see changes made to their descriptions and addresses, and of course to their rateable values with effect from specified dates.
Every entry in a rating list includes a rateable value. Around 80% of our rateable values are supported by a regular site and building survey. The remaining 20% use more specialised surveys, or are based on
construction costs or annual accounts.
Rating lists change over their lifetime. On any current day a list will show entries for each unit of property, (hereditament), meeting specific conditions with effect from the last material change of circumstances, or a later prescribed date. Each time we issue a new current list epoch we are providing the rating list as it was as at the end of a specific day.
To assemble the sequence of historic entries for a property, you should find all historic entries sharing the same UARN and sort them into ascending List Alteration Date. Entries that are alterations have Historic
From and To Dates. Entries that revise alterations will not. You can then add the current entry for the same UARN to complete the entire sequence of list entries for any given property in our 2017 rating list.
https://voaratinglists.blob.core.windows.net/html/rlidata.htm
Technical Guidance
https://voaratinglists.blob.core.windows.net/html/rlidata.htm#technicalguidance
Typical Rateable Value
https://www.tax.service.gov.uk/business-rates-find/valuations/start/175871214