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Free tools

Three questions you can answer right now, from public records, without an account: is my assessment out of line, who on my street is assessed less, and is it worth doing anything about it.

Every one of these will tell you when the answer is no. An Illinois board of review can raise an assessment it agrees to look at, so a tool that only ever finds good news is a tool that costs people money.
Uniformity The Twin Test

Finds the parcels your county's own records describe the same way as yours — same class, same town, same lot and building size — and shows what they are assessed. If they are assessed less than you, the difference is unexplained by anything the assessor wrote down.

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Your block Street Scan

Every assessed parcel on your street, ranked by assessed value per square foot. Shows the spread most owners assume does not exist, and where you sit in it.

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What these are built from

County assessment records — the same rolls the assessor publishes and the same figures printed on your notice. Nothing here is an estimate of what your house would sell for. Every number is either something a county published or arithmetic on it that you can repeat.

Where a county's own parcel page forbids republishing its records, we do not show its figures. You can still use everything by entering the assessment from your notice.

What they are not

Not an appraisal, not a comparative market analysis, and not legal advice. A uniformity finding is a statement about two rows in a public record: that the county described two properties the same way and assessed them differently. Whether that wins is for a board to decide.

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