Neighborhood Business Districts are small scale, mixed-use commercial areas that provide housing opportunities and retail and service businesses for the surrounding residential community. These sites may also accommodate a limited amount of administrative office space, provided that the office use does not interfere with the site’s primary neighborhood-serving function. NB Districts front on designated primary or minor arterials and are generally 1,000 feet or more apart along the arterials. It is the intent of the City that any such district be located adjacent to existing or proposed residential areas. The maximum size of an NB District, composed of contiguous properties and located on one side of a street, is four and one-half acres. The maximum size is expanded to six acres for NB sites separated by a street. (Ord. 5430, 1-21-03, § 1; Ord. 4654, 6-6-94, § 13; Ord. 4422, 9-28-92, § 1; Ord. 3145, 9-27-82, § 16)