They can pick the same information off Google.Earth for the entire United States. Except for the number of doors.
But Google.Earth doesn’t mark your lintels.
Google Earth shows the wrong house when I enter in my address. It makes an estimate based on the block number and length of street.
This effort compiles the location of each dwelling (or building being used as a dwelling). In general, you can't see the address on a building from the air.