Already built out land should be made denser. I don't want the area to be expanded; that will make the area worse for walkability and bikeability; I don't want to see super commuters commuting from Tracy or Modesto because that's so much pollution, congestion, and misery; I also don't want to see the area's abundance of large open space disappear. We should instead make the current built land denser by strongly encouraging existing single-family homes to have ADUs or be converted into duplexes and fourplexes. We should require all new residential construction to be multi-family units meeting density standards. We should set minimum height rules for new residential buildings to encourage vertical use of space.