Nightly book revaluation

Your book is revalued quarterly, but it changes every day

Why a nightly pass over every UPRN beats a regional index applied to the whole ledger.

Propalt Team · For secured lenders

Most secured books are marked to a regional index and refreshed on a quarterly cycle. Between those points the ledger drifts, and the drift is not uniform. A national or regional movement applied across every loan smooths over the assets that have actually moved and flatters the ones that have not. When the quarter closes, the correction arrives all at once, and the exception list is a reconstruction after the fact rather than a record of what changed.

The reframe is simple to state and harder to run at scale. Regional indexation was the sensible answer when the alternative was manually revaluing thousands of assets. That constraint has gone. Retrieving a valuation for every UPRN in the book on a nightly schedule is now a batch operation, which means the mark on each loan can reflect the individual property rather than the average of a region it happens to sit in.

Property-level LTV instead of a regional proxy

Regional indexation answers a question you did not ask. You do not lend against a region; you lend against a specific title. Two flats in the same postcode with different lease lengths, different condition and different transaction histories do not move together, yet a regional mark treats them as if they do. A property-level valuation pulled by UPRN gives you an LTV per loan that stands on that asset's own evidence.

The practical effect shows up at the tails. The loans that matter for capital and for provisioning are the ones near a threshold, and those are exactly the loans a regional average hides. A property that has underperformed its region crosses into higher LTV territory quietly under an index, and only surfaces when someone looks. Marked individually, it surfaces on its own.

The table is illustrative. The point is that the two columns disagree, and the disagreement is where the risk sits.

The exception list generates itself

Run the valuation pass nightly and the exception list is an output, not a project. Every asset carries a fresh mark, so the loans that have crossed a policy boundary since yesterday are simply the ones the query returns above the line. There is no separate revaluation exercise to commission, because the revaluation already happened overnight.

That matters for the people who have to defend the numbers. A model validator or an internal auditor can ask why a loan sits where it does and receive an answer grounded in a dated, property-level valuation rather than a regional factor applied uniformly. Under PRA expectations for accurate and current collateral values, being able to show the mark on each asset, refreshed daily, is a stronger position than a quarterly index and a note explaining the lag.

A regional index tells you how the market moved. A nightly UPRN pass tells you how your book moved.

Mark the assets, not the region.

Try the Nightly book revaluation → · propalt.ai

Valuation and property data is drawn from HM Land Registry and the Propalt intelligence layer. Figures shown are illustrative. This article is general information for lending risk professionals.