東京都環境局「緑化計画書制度」
東京都環境局
東京都環境局
Urban Farm DB summary
Tokyo's Green Plan System, based on the Tokyo Ordinance on Protection and Recovery of Natural Environment, requires development and building projects on sites of 1,000 sqm or more (250 sqm or more for national/local government sites) to meet a minimum greening standard. It cites heat island mitigation, air purification, and rainwater infiltration as goals, and publishes wall-greening guidelines and rooftop greening performance data.
Extracted facts
2 factsOnly numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.
- 1,000 m2
site area threshold(green plan system)
Policy- region
- Tokyo, Japan
- 250 m2
public site area threshold(green plan system)
Policy- region
- Tokyo, Japan
Direction of conclusions
Each author conclusion is recorded only as a coded direction per topic. Read the original for the conclusion itself.
- Policy and governanceSupports
- Heat islandSupportsWith caveats
Columns citing this source
This source is cited by the columns below. This page records the connection before you continue to the external source.
- Official sourceScience × Society · 2026-07-26The roof as farmlandRead the column →
- Official sourceScience × Society · 2026-07-31Who pays for the roof — mandates, subsidies, and repealRead the column →
- Official sourceScience × Society · 2026-08-01What is a rooftop farm good for? — between 633 hectares and 1,284Read the column →