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