Portman finished Ten Twenty Spring, a 530,000-square-foot, Class-A office tower and key component of Spring Quarter, the mixed-use development in Midtown.

The 25-story tower is outfitted with 15,000 square feet of private terraces and 20,000 square feet of tenant amenities, including an amenity floor with a tenant lounge, indoor/outdoor bar, panoramic skyline views and 10,000 square feet of green space. In addition to the main dining space, the team will debut Sozou on the main floor and Omakase by Ito on the office tower’s 8th-floor rooftop. Office rents at Ten Twenty Spring will be as high as $50-$54 per square foot.

Sora, Spring Quarter’s 370-unit residential tower opened in Fall 2023 and is 94% leased. Residents benefit from amenities such as multiple fitness centers, an infrared sauna, a climbing wall, a golf simulator and outdoor lawn space. Sora also features coworking spaces, a pet run and spa, media room, a resort-style pool and sky lounge overlooking the city.