Ancient Lights

In effect, the owner of a building with windows that have received natural daylight for 20 years or more is entitled to forbid any construction or other obstruction that would deprive him of that illumination. Neighbors cannot build anything that would block the light without permission. The owner may build more or larger windows but cannot enlarge his new windows before the new period of 20 years has expired.

After the World War Two , owners of buildings could gain new rights by registering properties that had been destroyed in Bombing s and the period was temporarily increased to 27 years.

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Ancient Lights