(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:


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