Professorville is a registered historic district in Palo Alto, California containing homes that were built by Stanford University professors. The historic district is bounded by Addison Avenue, Waverley Street, Kingsley Avenue, and Ramona Street. The community considers the district to be larger and bounded by Addison Avenue on the northwest, Cowper St…Professorville is a registered historic district in Palo Alto, California containing homes that were built by Stanford University professors. The historic district is bounded by Addison Avenue, Waverley Street, Kingsley Avenue, and Ramona Street. The community considers the district to be larger and bounded by Addison Avenue on the northwest, Cowper Street on the northeast, Embarcadero Road on the southeast, and Emerson Street on the southwest.