Two-Tower Hi Line Square Proposed for Dallas Design District

McCourt Partners and HN Capital Partners have proposed Hi Line Square, a two-tower mixed-use project at 1650 Oak Lawn Avenue in Dallas' Design District: a 30-story, 300-unit residential tower and a 17-story office tower with about 186,000 square feet of offices. Perkins&Will is the architect. This is the first confirmed tracking of the project's address, unit count, floor count, and square footage.

The towers add about 45,000 square feet of retail and showroom space, plus dining. Amenities include what is billed as Dallas' highest rooftop pool, a conference center, a lounge, and a 6,000-square-foot outdoor terrace.

A pedestrian plaza anchored by an heirloom tree fronts the site, with direct access to the Trinity Strand Trail and The Loop Connector. Completion is set for December 31, 2030.

The site sits along Oak Lawn Avenue near the Hi Line corridor, which links the Design District to Uptown.

Correction, Oct. 21, 2026: An earlier version of this story described Hi Line Square as a single 30-story tower of 612,000 square feet and named only HN Capital Partners. The project is two towers, a 30-story residential tower and a 17-story office tower, from McCourt Partners and HN Capital Partners.