RICS Knowledgebase

If you need to do a retrospective valuation i.e. for a date before the current edition:

The Red Book states in the introduction on page 5 “This edition takes effect from 31 January 2025 and applies to all valuations where the valuation date is on or after that day”.

The glossary of terms defines the valuation date as “The date on which the opinion of value applies” i.e. not the report date.

We would recommend that you state the version of the Red Book adopted and the rational for selecting that version.

An archive of the Red Book is available on isurv (subscription required) at https://www.isurv.com/info/1021/red_book_archive

#Valuation