Cadmappers -

In 2021, a collective of Cadmappers exposed that 62% of vacant lots in a major U.S. city’s poorest ward were owned by just three shell companies, all tracing back to a single foreign investor. The city had no idea. The tax assessor had them listed as “owner unknown.”

Using freedom of information laws, property tax rolls, satellite imagery, and a willingness to stitch together 3,000 incompatible county-level databases (many still running on MS-DOS), Cadmappers produce what no government willingly provides: a human-readable, cross-jurisdictional, accountable map of land ownership. Why does this matter? Because modern wealth hides in land. cadmappers

Maps are lies. But most lies are polite. They straighten rivers, smooth coastlines, and pretend the Earth is flat enough to fit in your glove compartment. In 2021, a collective of Cadmappers exposed that

What unites them is a belief that In most of the world, property records are public by law. But “public” does not mean “accessible.” A firehose of PDFs is not transparency. A search portal that crashes after three queries is not accountability. The tax assessor had them listed as “owner unknown

And if you know where to look, you can read them too. The cadastre is never neutral. Neither are those who draw it.

Cadmappers are renegade GIS analysts, ex-surveyors, open-data scrapers, and civic hackers who specialize in one of the most explosive, overlooked, and deliberately obscured datasets on Earth: