Discount Parking is available near the HK Porter Building. The parking location below offers discounted parking rates with a web coupon. Click the location address to view parking information and print a web coupon. A coupon is required to receive the special discounted rates, so be sure to print one and bring it with you. The HK Porter Building is located in Downtown Pittsburgh near the US Steel Tower, and within walking distance of the historic Market Square, the O'Reilly Theater and Heinz Hall.