A Chicago law passed in 2013 lets developers cut by as much as half the number of required off-street parking spots if the projects are within 600 feet of a CTA or Metra rail station. The same parking offer is available if the building is within 1,200 feet of such a station and also is located along a street the city has certified as pedestrian-friendly. Back in the dark ages, before this law was passed, there had to be one parking spot for every residential unit.