Comparative Analysis in Bonus of Floor-Area Ratio by The General Comprehensive Design System and The Urban Housing Comprehensive Design System in Tokyo

• Published in: Urban housing sciences Vol. 1999; no. 27; pp. 55 - 60
• Main Authors: Takamizawa, Minoru, Kobayashi, Shigenori, Nam, Jin
• Format: Journal Article
• Language: Japanese
• Published: Association of Urban Housing Sciences 1999; 公益社団法人 都市住宅学会
• Subjects: Bonus of Floor-Area Ratio; Easing Conditions of Regulation; The General Comprehensive Design System; The Urban Housing Comprehensive Design System; 一般総合設計制度; 割増容積率; 市街地住宅総合設計制度; 緩和条項
• ISSN: 1341-8157; 1884-6823
• DOI: 10.11531/uhs1993.1999.27_55

The purpose of this study is to analyze the realities in the bonus of floor-area ratio by The Urban Housing Comprehensive Design System (HCDS) and The General Comprehensive Design System (GCDS), and to clarify by what factor the bonus of floorarea ratio is influenced. As resultants of the analysis, cases by HCDS have received the bonus of floor-area ratio about twice higher than cases by GCDS. From such a fact, it has been understood that the acquisition of a house floor by the bonus of floor-area ratio is a main purpose in HCDS, and a main purpose in GCDS is to make the form in the office building reasonable by easing conditions of regulation. And from analysis of variance, analysis of quantified scaling, it was found that the rate of effective open space and the zoning influenced the bonus of floor-area ratio most in HCDS, and that the easing conditions of regulation and the rate of effective open space influenced most in GCDS.