Local studio Heliotrope Architects has designed an upscale Italian eatery in downtown Seattle with clean lines, which is named Cortina, located at the base of Two Union Square. The restaurant is intended to have a calm and sophisticated atmosphere. All rooms have a highly disciplined appearance, with lines that are crisp and clean.

Built with an L-shaped layout, the 7,000-square-foot (650-square-metre) restaurant has three distinct zones. The foyer and bar are situated in one leg, while booth-style seating and a secret dining room occupy the other. A lounge was placed at the corner, where the two legs meet.

The 63-foot (19-metre) bar – among the longest in the city – is faced with granite and topped with wood. Suspended overhead is a long row of black, cylindrical pendants by XAL Lighting. The skinny fixtures send light downward, illuminating diners' cocktails and meals.

The secret dining room is accessed via a door that looks like a panelled wall. The covert space features dark walnut panelling and seating for up to to 40 guests. One side of the room is lined with a one-way mirror, enabling guests to peer out while blocking anyone from seeing inside. The dining areas feature pale wooden chairs by the Spanish furniture brand Andreu World, and disc-shaped sconces by Rich Brilliant Willing. Banquettes and booths are wrapped in smooth, brown leather.