Abstract
Recently, it became possible to examine the details of ground surface elevation by laser measurement through the progress of aviation technology. Floor space was frequently used as an index to measure the size of buildings, but information concerning height was very poor. This research examined the actual building heights in Tokyo 23-wards by utilizing air plane laser measurement data. The space-weighted average of building and floor heights of Tokyo 23-wards was 16.2m and 4.1m respectively.
