Prospect Apartments 635 Prospect Ave, South Pasadena, CA is a rental apartment building with 5 floorplans available. It is located in the South Pasadena neighborhood of South Pasadena. It has apartment amenities including dishwasher, assigned parking, ceiling fan, in-unit laundry, on-site laundry, and air conditioning. It has building amenities including swimming pool, on-site laundry, garage parking, fitness center, and outdoor space. Cats and dogs are allowed, making it a pet-friendly building.