RICS Reporting Standards for Defensible Reports

A report can contain sound valuation judgement and still be difficult to defend if its own figures do not reconcile. RICS reporting standards set the baseline for what must be reported, but they do not remove the practical challenge of checking a long document under delivery pressure. The risk is rarely a lack of knowledge. It is that a revised rent, area or date has been updated in one place but not another.

For registered valuers, reporting is where the analysis becomes a formal professional opinion. The report needs to tell the reader what has been valued, on what basis, for whom, at what date, against which assumptions and with what evidence. It must also read as one coherent document. That last point matters just as much to a lender or review team as the presence of the required wording.

What RICS reporting standards require in practice

The Red Book Global Standards set requirements around the terms of engagement, investigations, valuation basis, assumptions, valuation approach and reporting. The precise content will depend on the instruction, asset class and intended use. A secured lending report will have different sensitivities from a report prepared for financial statements or internal decision-making.

A compliant report is not simply a collection of correctly labelled sections. The valuer needs to make the rationale visible. If market value has been adopted at £2,850,000, the reader should be able to follow the route from the property description and tenancy position, through the comparable evidence and analysis, to the adopted figure. If the valuation is subject to a special assumption, that assumption must be clear and its effect understood.

The detail is often where a report is tested. A commercial valuation may refer to a 7.25% equivalent yield in the valuation section, while the calculation appendix uses 7.00%. A residential report may state a floor area of 82 sq m in the description and 78 sq m in the comparable analysis. Either difference may have an explanation. Neither should be left unexplained.

The report must meet the instruction as well as the standard

Red Book requirements are only one part of the reporting framework. Lender and client instructions commonly add report-specific requirements around the marketing period, comparable evidence, tenancy commentary, building safety disclosures or assumptions. These are not peripheral additions. They define the scope on which the client is relying.

Take an instruction requiring a stated marketing period and a minimum number of comparable transactions. The report may contain good evidence, yet still be returned if the marketing period is absent from the agreed location or if one comparable is only mentioned in narrative and not analysed. A review should therefore test both substance and instruction compliance.

This is also where template-driven reporting can create problems. Boilerplate may be appropriate for parts of a report, but it needs to be checked against the individual property. A generic statement on EWS1, for example, is not a substitute for clear commentary where the instruction requires a disclosure, the building falls within scope, or information remains unavailable. The report should say what has been established, what has not, and how that position has been reflected in the valuation or assumptions.

Four areas where reports often lose coherence

Values, rents and dates

A market rent can change during negotiations or following receipt of better evidence. Once amended, it may affect the valuation summary, investment calculation, comparable schedule, sensitivity commentary and final figure. A £50,000 mismatch between the executive summary and the valuation section is immediately visible to a reviewer, even where the correct figure appears elsewhere.

Dates need the same discipline. The valuation date, inspection date, report date and comparable transaction dates have different purposes. They should be correctly stated and should support the narrative being made. A report issued in September that describes market evidence as "current" without explaining a June transaction may invite a reasonable question about market movement.

Areas and units of measurement

Floor areas are often drawn from several sources: measured survey information, lease documentation, sales particulars, EPC records or prior reports. The valuer may reasonably adopt one source over another, but the adopted area must be used consistently throughout the report.

The review should look beyond an obvious arithmetic error. It should identify whether the headline net internal area agrees with the area used to calculate £ per sq ft, the rent analysis and the comparable table. It should also flag a switch between sq m and sq ft that produces a plausible-looking but incorrect rate. These issues can survive a conventional read-through because each individual sentence appears credible.

Yields, terms and calculations

Investment reports need their moving parts to agree. The unexpired term should align with the lease expiry stated in the tenancy section. Rent review dates, breaks, incentives and void assumptions should be reflected in the cash flow or capitalisation approach where relevant. If the report says the passing rent is £185,000 per annum and the adopted yield is 6.50%, the stated capital value must reconcile with the method described, allowing for purchasers' costs and any other clearly stated adjustments.

A discrepancy is not automatically an error. A term and reversion calculation may properly produce a different result from a simple capitalisation cross-check. The point of review is to flag the difference so the valuer can confirm that the explanation is present and the calculation is the intended one.

Comparable evidence and conclusions

Comparable evidence does not need to be identical to be useful. In many markets, it cannot be. But the report needs to demonstrate how differences in location, specification, tenancy, size, date and condition have been weighed. A schedule with three transactions is not, by itself, an analysis.

A helpful final check is to trace each key comparable into the conclusion. Does the report explain why the adopted £ per sq ft sits above or below the evidence? Is a superior covenant reflected in the yield? Has a short unexpired term been dealt with rather than merely noted? This is where professional judgement does its real work, and it cannot be replaced by a text check.

A practical review method before sign-off

A sensible review is not another full valuation from scratch. It is a structured challenge of the report as a document, alongside the valuer's own judgement. Start with the instruction and terms of engagement. Confirm the purpose, client, addressee, basis of value, valuation date, assumptions and required disclosures. Then test whether those points are carried consistently through the body of the report.

Next, trace the key inputs. Check the adopted area, rent, yield, lease term and valuation figure wherever they recur. Reperform selected calculations, particularly where an input has changed late in the process. Finally, read the executive summary against the detailed valuation. Senior reviewers and lender-side teams often start there, so contradictions in that section carry disproportionate weight.

For a team producing reports at volume, this is also the point at which an automated audit can help. WriteUp reviews a draft as one document and can flag figures that do not reconcile, contradictory lease terms, missing instruction-led disclosures and gaps in comparable evidence. It is a second pair of eyes before the report leaves your desk, not a substitute for the valuer deciding whether a flagged point is material, explained or incorrect.

Confidentiality and control should be part of that decision. Any system used for draft valuation reports should process material privately and securely, without storing report data or using it to train models. The surveyor remains responsible for every conclusion and should be able to review each finding in context rather than accepting a black-box answer.

Why consistency is a professional issue

A report can be technically well founded yet lose the reader's confidence through small contradictions. If one section says a tenant is "strong" while another records a material adverse event with no explanation, the issue is not merely wording. It raises a question about whether the covenant analysis has been carried into the valuation judgement.

That is why the best reporting discipline combines technical knowledge with a repeatable review process. The Red Book provides the professional framework. The instruction sets the agreed scope. Careful cross-checking makes sure the evidence, assumptions, calculations and conclusions still support each other after the final amendments.

The aim is not a report that looks mechanically perfect. It is a report that gives a clear account of the valuer's opinion, identifies its limits honestly and stands up when a lender, panel manager or colleague asks the next sensible question.