How to Spot Valuation Anomalies Before Issue

A report can be well reasoned and still contain one figure that does not belong. A capital value may be correct in the valuation section but differ by £50,000 in the executive summary. A comparable may show a yield that does not reconcile to its price and rent. These are the points that create lender queries, delay issue and, more importantly, weaken the report’s audit trail.

Knowing how to spot valuation anomalies is not about distrusting the valuer’s judgement. It is about reviewing a report as a single document, rather than as a series of sections completed at different times. Under time pressure, a revised assumption in one place can fail to carry through to another. A disciplined final review helps catch that before the report leaves your desk.

Start with the report-wide numbers

The first check is straightforward: identify the figures that should be identical wherever they appear. This includes market value, market rent, special assumptions, floor areas, dates, loan amounts and any stated percentages. A report may contain the same market value in the instruction, summary, valuation conclusion, security section and certificate. It should reconcile throughout.

Consider a commercial report where the conclusion gives a market value of £2,450,000, while the executive summary says £2,400,000. The difference may simply reflect an earlier draft. But a lender does not see the drafting history. They see two possible opinions of value. Even where the valuation conclusion is clear, the inconsistency invites a query and can undermine confidence in the document.

The audit method is to search each repeated figure and confirm its context. Do not only look for exact matches. Check rounded figures too. A value expressed as £2.45 million in one section and £2,400,000 in another may be a material conflict, not a presentation choice.

Test whether the valuation inputs reconcile

A figure can appear consistently and still be anomalous when tested against the inputs supporting it. This is particularly relevant where the approach relies on a capitalisation rate, a price per square foot or metre, or a discounted cash flow.

Yield, rent and capital value

Take an investment property valued at £3,000,000 with a passing rent of £180,000 per annum. The simple initial yield is 6.00 per cent before allowing for purchaser’s costs. If the report describes the adopted yield as 5.50 per cent without explaining a rent adjustment, a stepped income profile or costs, the figures need another look.

This does not mean the valuation is wrong. The valuer may have adopted a net initial yield, a topped-up yield or a different income figure. The anomaly is the absence of a clear route from evidence to conclusion. The review should establish which rent has been capitalised, whether the yield basis is stated correctly and whether the calculation matches the narrative.

The same principle applies to market rent. If a report adopts £185 per square metre but its schedule shows 1,200 square metres and an annual rent of £200,000, the implied rate is closer to £167 per square metre. One of those figures may relate to a different area basis, such as net internal area rather than gross internal area. If so, say so clearly. If not, it is a calculation or transcription issue worth correcting.

Areas and rate analysis

Floor area anomalies are common because source documents use different conventions. A comparable might be quoted at 950 square metres GIA, while the subject is valued on an NIA basis. The comparison may still be useful, but the report must show the adjustment and avoid presenting unlike metrics as directly comparable.

Review the area in the instruction, site description, accommodation schedule, valuation calculations and comparable table. Check that units are consistent. A square metre figure can be converted to square feet correctly in one table and incorrectly in another, producing a rate that looks plausible at first glance.

A useful sense check is to calculate the implied rate from the adopted value and stated area. If a 2,000 square metre property is valued at £4,000,000, the implied figure is £2,000 per square metre. Compare that with the adopted rate in the valuation rationale. A mismatch may reveal a changed area, an omitted ancillary element or an arithmetic error.

Read comparable evidence against the conclusion

Comparable evidence should support the conclusion, but the connection is not always as clear as it needs to be. An anomaly may lie in the evidence itself, in the adjustments made, or in the way the evidence is described elsewhere in the report.

Start with the basics. Do the transaction date, price, tenure, floor area and analysed rate reconcile between the comparable schedule and the written commentary? If Comparable 3 is described as a freehold sale at £1,850 per square metre in the narrative, but the schedule records a long leasehold transaction at £1,650 per square metre, establish which account is correct.

Then consider relevance. A comparable can be factually accurate but poorly aligned with the subject. A sale from 18 months ago may remain useful in a thin market, provided the report addresses market movement. A smaller lot size may justify a higher rate. A stronger covenant, longer unexpired term or superior specification may explain a lower yield. The anomaly is not difference. It is an unexplained difference that carries too much weight in the conclusion.

Check whether the report meets the minimum comparable evidence requested in the instruction. If it requires three recent transactions and one has been removed during drafting, the final report may no longer meet that threshold. That is an instruction point as much as a valuation point.

Check dates, assumptions and lease terms

Dates are often treated as administrative detail until they change the basis of value. The valuation date should match in the report, certificate, inspection records and any calculation model. A report inspected on 10 June and valued as at 31 March may be entirely appropriate, but the reason for the historic valuation date should be evident.

Lease details deserve the same scrutiny. An unexpired term stated as 72 years in the valuation rationale but 62 years in the lease summary can affect marketability and value. Review break dates, rent review provisions, repairing obligations and ground rent terms where relevant. These details do not need repeating at length throughout the report, but they must not contradict the assumptions on which the valuation is based.

For residential secured lending, check that disclosures appear where the instruction requires them. An EWS1 reference might be included in a document list but omitted from the risk commentary. Equally, the report should not imply reliance on an EWS1 where no form has been provided. The wording needs to reflect the evidence actually available at the valuation date.

Marketing period statements also need consistency. If the report says the property has been marketed for six months, while a comparable or sales listing indicates only six weeks, clarify whether the dates refer to different campaigns or whether the statement has been carried forward from an earlier draft.

Look for contradictions, not just errors

The most difficult anomalies are not arithmetic. They are contradictions in meaning. A report may state that demand is limited, then adopt a premium rate without explaining why. It may describe a property as requiring significant refurbishment, yet compare it with fully refurbished stock without an adjustment. It may identify a tenant covenant as weak while capitalising the income at a yield more consistent with stronger security.

These points require professional judgement. There is no universal rule that a stated risk must produce a particular yield or discount. Market evidence, asset quality and purchaser behaviour all matter. The reviewer’s task is to ask whether the narrative, evidence and conclusion tell the same story.

A practical way to do this is to read the executive summary last. It should accurately reflect the detailed report and avoid introducing shorthand that changes the meaning of an assumption. If the summary describes vacant possession but the valuation is on an investment basis subject to a tenancy, the report has a material contradiction even if the main calculations are correct.

Build a repeatable final review

A manual review remains essential because the signing surveyor decides whether a finding is relevant, immaterial or fully explained by the valuation rationale. The difficulty is that a careful reviewer can still become familiar with their own draft. That is where a structured check, completed the same way each time, is valuable.

Review repeated figures first, then calculations, evidence, lease terms, dates and instruction-specific requirements. Finally, read the document for internal contradictions. Keep the working papers that support material decisions, especially where the adopted figure sits outside the central range of comparable evidence.

For firms reviewing reports at volume, a supporting audit tool can make this process more consistent. WriteUp reads the report as one document and flags figures that do not reconcile, missing required disclosures and contradictions between sections. It is built as a second pair of eyes, with findings left for the surveyor to assess before issue. Report data should remain privately encrypted, with no storage or use for model training.

The aim is not a report stripped of judgement. It is a report where the judgement is easier to follow, the numbers reconcile and the assumptions are stated in the right places. That gives the lender fewer reasons to query the document and gives the valuer a clearer basis for standing behind it.