Quoted from Sterling Silver
1000 ft. from persons or property, if I remember correctly, so actually too low over houses in this video.
From
FAR 91:119 1. Anywhere: an altitude allowing a safe emergency landing without undue hazard to persons or property on the ground;
2. Over Congested Areas: an altitude of 1,000 feet above the highest obstacle within a horizontal distance of less than 2,000 feet;
3. Over Populated Areas: an altitude of 500 feet AGL;
4. Over Open Water or Sparsely Populated Areas: an altitude allowing for a linear distance greater than 500 feet from any person, vessel, vehicle, or structure;
5. Helicopters: If without hazard to persons or property on the surface, an altitude lower than in definitions 2, 3, and 4 above, provided in compliance with any routes or altitudes specifically prescribed for helicopters by the FAA.
Also, there are exceptions for landing, takeoffs, and a few other things such as crop dusting(aerial applicators).
#4 applies when I am flying low and slow over the farms around Cenla, or following the levees on the Red River. I would say it applies in the video, because that looks like a "sparsely populated area". But you are definitely less than than 500 ft "slant range" over some of those houses.