(1) Nishhoken: Japanese sunshine rights / sunlight laws 日照権

A diagram explaining certain aspects of ‘Nisshō-ken’, a Japanese term meaning the “right to sunshine”, which governs the height and shape of buildings in certain places.

Many mid-sized (~5-10 story) buildings in Tokyo have slanted roofs on the top several floors. The designs of the following buildings may have been influenced by the sunshine rights laws:

Another diagram:

Links:

• New buildings can take the sunshine out of life (The Japan Times, August, 2014)
• Nisshoken – Japan’s Sunshine Rights
• Mention of sunshine rights related to Tokyo Sky Tree
• Urban Land Use Planning System in Japan (PDF: JICA, 2007; page 35)
• (thanks to @markvalli for the heads-up.)
• 相隣関係: 日照権について Neighbor relationship: Sunshine rights; broken link: iwatekenchikushikai ecnet jp/04.sumai/no110-4-1 html