UAV LIDAR will definitely be a major benefit to the real estate developer.
In under 20 minutes, in a single flight, you can cover upwards of just over 100 acres. If you have a bigger lot, bring more batteries and maybe even a generator to re-charge in the field, fly the entire area.
Back in the office generate the point cloud, bare earth classify, and possibly colorize your point cloud. Drop the result into a suitable view such as our web-based browser and freely move around.