RICS Knowledgebase

The issue of the use of post-dated evidence has been discussed and debated by an Expert Working Group and Chair overseeing the update of the Comparable Evidence guidance.

A draft is expected Spring 2026. The final version, taking on board the feedback and insight, will be published later in 2026. In the meantime the first edition is the current version and is available here https://www.rics.org/profession-standards/rics-standards-and-guidance/sector-standards/valuation-standards/comparable-evidence-in-real-estate-valuation

This is especially in light of recent decisions such as Chifley v HMRC [2024] UKUT 00301 (LC)  https://landschamber.decisions.tribunals.gov.uk/judgmentfiles/j2034/LC-2023-482%20Final%2025.9.24.pdf  where the Upper Tribunal considered the relevance of and weight to be given to post-valuation date evidence, holding that while events after the valuation date which could not have been known to the valuer or hypothetical buyer should not be taken into account, post-transaction sales can be used to inform the valuer as to the state of the market at the time of the valuation.

#Valuation

#Comparables