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Property appraiser / valuer — tasks, one by one
The unit of analysis is the task, not the job title. Each one below carries its direction, whether the judgement rests on evidence or on platform inference, the reasoning, and what it does not establish.
Every task on this page#
Inspecting the property
Still human-led✓ Evidence-backedVisiting the property, measuring it, noting condition and features, and photographing it.
The visit still needs a person, but not always an appraiser: a US mortgage agency accepts interior and exterior data collected by a trained property data collector instead of an appraisal for eligible loans. Work moving to another person is not work being automated.
One agency's rules; they do not show how many inspections data collectors now do instead of appraisers.
Analysing sales and estimating value
Automating✓ Evidence-backedChoosing comparable sales, adjusting for differences and reaching a value for a lender or client.
For eligible US mortgages the lender's estimated value is accepted against the agency's own appraisal data and no appraisal is required, and the regulator widened eligibility in 2024; a Vienna study found a machine-learning model as accurate as experts and much faster. Regulators still require quality controls on lenders' models, and an appraiser's own value may not rely on one.
Mortgage agency policy in one country and one small study; they do not give the current share of loans valued without an appraisal or show how this varies with the market.
Writing the valuation report
Being augmented✓ Evidence-backedSetting out the value, the evidence and the reasoning in a report that others will rely on and may challenge.
The profession's standards allow model and AI outputs into a valuation only with a valuer's judgement: an unreviewed model output is not a compliant valuation, and members must record in writing whether an AI output is reliable.
Standards of one professional body; they say how AI may be used, not how much of report writing it now does.
Valuing properties for tax
Automating✓ Evidence-backedValuing or banding large numbers of properties for property tax, and keeping the list up to date.
Britain's valuation office uses a model to give first-pass values for 1.5 million Welsh homes for a council tax revaluation, replacing manual banding by valuers, who now check the data, review unusual results and take the difficult cases; it estimates a revaluation will cost a third less.
One agency's description before the revaluation takes effect; it does not show final accuracy or how many valuers the work now needs.
Reviews, appeals and expert evidence
Still human-led✓ Evidence-backedReviewing other valuations, defending a value when it is challenged, and giving evidence in disputes.
No record found shows a model defending a value in a dispute. Owners in the Welsh revaluation keep a legal right to challenge their band, and the profession's standard treats a model output as a valuation only once a valuer has applied judgement.
The absence of a record and a description of rights; it does not measure how many challenges there are or who handles them.