The annex on 12th Street was required to be differentiated from the rest of the structure, but be built of comparable materials, structure and size. The developers also had to ensure the addition would not damage the original building in case it was demolished. The addition also reduced changes to the rest the original building that would have been needed to make room for certain amenities. The four-story, concrete-framed, glass and aluminum addition houses a parking garage's entrance and exit, meeting spaces, hotel service facilities, a kitchen, and a room for mechanical equipment. On the north side of the building a canopy with Loews signage on it was added to the Market Street entrance. The loading areas and motor lobby are located off of 12th Street and often become heavily congested.