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Re:There's a mansion hidden directly under the Bay Bridge by jfoutz on Friday May 05, 2023 @08:27PM (#35836756)
I'm not sure I understand - https://sfplanning.org/resource/shadow-analysis-procedures-a...

40 feet, times of year, 20% shadow. make a model. At the surface level, they look similar to me. NYC has been doing that for a whole lot longer, I wouldn't doubt their planning department has a more refined process. But it's not like SF is alone in this kind of regulation.

Re:There's a mansion hidden directly under the Bay Bridge by bobthepanda on Friday May 05, 2023 @08:45PM (#35836847)
My understanding is that NYC

* has smaller time requirements for sunlight; the planning requirements state that an area should have 4-6 hours of sunlight a day, whereas SF looks at if it gets any worse over any time period

* NYC only protects specific kinds of park uses for sunlight, so like sunlight is not material for a basketball court, for example.