floorplans

Well it's just a question of time. They already have drones they can send down extensive volcano tubes for mapping, in preparation for mapping volcano tubes on the moon and mars. https://www.seti.org/press-release/drone-maps-icy-lava-tube-iceland-preparation-cave-exploration-moon-and-mars...

Some appraisers are listing drawing of floorplans as a second service, where they may charge $200 - $275 for floor plans. I have no idea how good they are, but I doubt they are that good, since the ones I've seen say nothing about ANSI measurement compliance. I would suggest looking at the...