抄録
The purpose of this paper is to show the concept of restrictions in height-control-districts aimed to preserve historic townscape. The results are as follows;
1) Severe height restrictions designating narrow area make it possible to preserve historic streetscape and lessen non-conformed building.
2) Height restriction grading precisely around historic streetscape is effective for townscape preservation and space utilization.
3) Height restrictions should be determined by difference of elevation between landscape object and its surrounding area where preservation of landscape view is required.