Where we can look up your house

If your area is not on the list

Nothing is broken. We ask you two questions — roughly what year the house was built and roughly how big it is — and everything after that works the same. A rough answer is fine; the plan changes at decades, not years.

The parts that come from federal data cover every address in the country regardless: your flood zone, radon potential, the shrink-swell behaviour of your soil, and your local climate. Those never depend on whether your county publishes anything.

Whole states

Every address in these states resolves: Connecticut, Maryland, Massachusetts, New Jersey, Utah, West Virginia, North Carolina. The whole of Washington, DC as well.

Everywhere else we cover

States with nothing yet

Alabama, Arkansas, Hawaii, Idaho, Kentucky, Louisiana, Mississippi, Montana, New Hampshire, New Mexico, Oklahoma, Rhode Island, Wyoming.

Not because those places keep their records secret — most of them publish plenty. It is that every county publishes differently, and each one is a piece of work to read. We are steadily working through them, and the places people actually search for go first.

Where the data comes from

County assessors, city property appraisers and state GIS offices — the same public records that back your tax bill. We do not buy property data, and we do not guess. If a county does not publish a fact, we leave it blank and ask you rather than filling it in with an estimate.

Everything we find is shown with its source, and anything you correct beats what the records say.