I have to admit I have mixed feelings about this... On the one hand, SF needs affordable housing. A never-used reservoir being used as a parking lot is underutilizing some valuable space.
On the other hand, a 9-hole golf course was just redeveloped 2 miles from my house here in PA - with office buildings, a "downtown" mall, several thousand housing units going in... it's a huge amount of people in a really small area. Can we say "congestion" boys and girls?
The non-assigned parking - sharing parking with CCSF sounds like a great idea on paper - but I don't see it working in reality.