A STUDY OF HOW TO MAKE THE BUILDING STANDARD LAW RELEVANT IN PRESERVING ROOFS OF BUILDINGS PROTRUDING BEYOND LAND BORDERS IN IMPORTANT PRESERVATION DISTRICTS FOR GROUPS OF TRADITIONAL BUILDINGS

2016 Fiscal Year Final Research Report

• Project/Area Number: 25420646
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Town planning/Architectural planning
• Research Institution: Fukuyama City University
• Principal Investigator: OKABE Shigeo 福山市立大学, 都市経営学部, 教授 (70618131)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 重要伝統的建造物群保存地区 / 屋根の隣地越境 / 建築基準法

Outline of Final Research Achievements

In Important Preservation Districts for Groups of Traditional Buildings, some buildings are built very close to their adjoining ones, and their roofs often protrude beyond borders with the adjoining premises. But, the current Building Standard Law (hereinafter BSL) does not consider problems arising from such situations. So, it is not possible to determine whether such roofs protruding out to adjoining estates are violating the law.
This study revealed the following points. Many officials of preservation sections generaly instruct to to keep them as they are. But, their interpretation of whether these roofs are compatible or not with the current BSL is divided, and most of them are reluctant to support major remodeling of historic buildings, which might cause a complicated problem of legitimacy of the remodeled buildings. And this study examined about how to make these roofs relevant to the current BSL.

Free Research Field

建築法制