This study examines methodologies for increasing landscape planting with high trees in the built-up area. It focuses on the relation between the number of trees and their position on the site considering such factors as the size of the housing site, the building-to –land ratio, and the depth and total area of the available space. The results are as follows; 1) 751 high trees were found in 252 lots in Ichikawa and many of high trees were black pine (Pinus thunbergii). 2) Many of these were found on the south side and facing the street. 3) Statistical analysis suggest a significant correlation between the number of high trees and the position of the structure in the lot. The minimum standard necessary per tree were computed to determine the number of high trees a given lot can accommodate.
