off-street       
adjective [ usually before noun ] uk/ˈɒfˌstriːt/ us/ˈɑːfˌstriːt/
 (停车等)不在公共道路上的
not on a public road or street
  Businesses must have off-street parking, according to the zoning code. 根据车辆停放分区法规,企业必须拥有离街停车位。 
 They want restaurants, bars, and hotels to provide enough off-street spaces to serve 25 percent of the establishment's seating capacity. 他们希望餐厅、酒吧和酒店能够提供非街道停车位,满足25%座位容量的停车需要。 
 - More examples
 - Facilities such as off-street parking, security, a gym or swimming pool will be an added bonus in apartment blocks.
 - We want to deter the car commuter who is coming into central London, parking in an off-street car park all day and then driving out again.
 - "In general, it's a great system," he said of the metro-wide network of off-street bike paths.