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 assigned parking, ceiling fan, dishwasher, air conditioning, on-site laundry, and in-unit laundry. It has building amenities including on-site laundry, fitness center, outdoor space, garage parking, and swimming pool. Cats and dogs are allowed, making it a pet-friendly building.