An STR is the use of any Dwelling Unit, authorized Accessory Dwelling Unit or Accessory Building, or portions thereof, for sleeping or lodging purposes by a paying guest for less than 14 consecutive days. This use is commonly associated with an online rental platform (e.g. Airbnb, HomeAway, VRBO), but can also be rented without the assistance of a third party service. A Dwelling Unit is defined as a building or portion of a building designed for, or occupied exclusively by, persons living as one household.