Measures to improve public value by properly evaluating landscape value by comparing building regulations in Japan and Germany

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K15167
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 23030:Architectural planning and city planning-related
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Numata Mamiko 東京工業大学, 環境・社会理工学院, 研究員 (70724623)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: 景観価値 / ドイツ / ローテンブルク / 建築規制 / 歴史的町並み

Outline of Final Research Achievements

Although building permits have been obtained after strict investigations of building regulations in the old town of Rothenburg, there is almost no subsidy for the costs, and the historic townscape is maintained by the residents. However, it was confirmed that the residents accepted the construction regulations that have obligations and burdens while securing a certain level of convenience such as automobile transportation. This is due to the fact that residents' preferences are strongly reflected in the selection of building regulations and traffic regulations, and that bank loans for real estate construction costs are based on historical townscapes and building values. We were able to understand that land prices are secured by regulation by ordinance and loans by banks.

Free Research Field

景観

Academic Significance and Societal Importance of the Research Achievements

資産価値の制限にも関わる建築規制を住民がどのように受け入れているのか、文献から資産価値に関する構造の把握、条例を制定している市役所のヒアリング、それに対する住民の意向調査など、様々な角度から調査した。日本では、建築規制を伴う条例を制定することは個人の資産価値に制限をかけると言われていたものに対して、ドイツのローテンブルクでは銀行、行政、市民により地価の向上にも寄与し、また住民は建築規制により地価が担保されているため、大きな抵抗がないことが把握できた。