What do you count as urban development? Would a duplex count as urban development? how about a 4-unit condo building? or a 10-unit building?
Reasons to build more densely there would include
- accounting for a growing population,
- senior citizens who want to live with their adult kids/walk to downtown
- increased property tax revenue from construction with a 2018 basis to offset budget deterioration under Prop 13
- an increased number of school students (pretty much every city on the Peninsula is slowly aging, and many are dealing with budget crises/school closures)
- provision of BMR housing (if you can build it) for city staff and other service employees, which is cheaper to build as part of a larger structure than as single family units.