It turns out that the property tax add-ons levied by the City of Bell have its residents paying a higher rate than in any local city but Industry, the Times has found. At least, the percentage of assessed value is higher. In reality, of course, under Proposition 13 California property taxes vary hugely by how long you live in your home. If you buy a condo this week in Canoga Park, you might pay more taxes than someone who has lived in a Beverly Hills or Malibu mansion for thirty years.