717-3737 Camino del Rio South, also known as the United Labor Center or ULC, is a professional office building located in the heart of Mission Valley. ULC offers a rare opportunity to occupy professional office space centrally located with easy access to some of San Diego’s key amenities and attractions. ULC intersects with major freeways such as the I-8, I-15, and I-805 allowing easy access to those all around San Diego County.