Gaviidae Common is a 240,000-square-foot specialty retail center with five levels of retail and 2.5 levels of below-grade parking. "Gaviidae" is the Latin term for Minnesota's state bird, the loon. The center covers the entire city block surrounded by Nicollet Mall, Marquette Avenue, and 6th and 7th Streets, with skyway connections in all directions. It is divided into Gaviidae I and Gaviidae II, each with distinctive architectural features and finishes. Anchored by retail, the common includes fine dining restaurants, offices, and a food court.
Outside, Gaviidae features a French limestone exterior in beige tones, accented by glass display windows and slate. A patterned, vaulted ceiling integrated with skylights tops the five-story atrium high above Gaviidae I. The interior features a blue and ivory color scheme, accented by red, olive, and gold leaf. A translucent glass stairway, lit from below, connects the ground level to skyway level. Waterfalls cascade from pools on the fifth level to ground level, with a 20-foot bronze loon seeming to take flight from the pool on the third level.