Hazelwood Green, Pittsburgh’s newest neighborhood, is on track for a long-awaited milestone: construction of its first housing development.

New York-based developer Tishman Speyer announced plans Tuesday to build a 50-unit apartment building on the former brownfield by early 2027.

The news marks a highly anticipated step toward combining dense tech office space, parks, and housing at the 178-acre plot located on a former steel mill site.

Completed in 2020, Hazelwood Green lies just west of Pittsburgh’s Hazelwood neighborhood and hugs the Monongahela River.

It has seen development of large tech office spaces and recreational facilities over the years, but housing projects have been a missing piece.

The Almono Limited Partnership owns Hazelwood Green.

Todd Stern, Almono’s asset manager, said adding housing will help move the development a step close to fulfilling Almono’s vision of creating a place where residents and live, work, play and thrive.

“This building will provide residents and families with secure, affordable housing, a beautiful park setting, and proximity to the economic, workforce, and educational opportunities at Hazelwood Green, in Oakland and Downtown,” Stern said.

The proposed five-story building on Lytle Street will include 40 affordable units, 13 of which will be dedicated to single parents in need of housing while pursuing a college degree, according to a press release.

Tishman Speyer is working with local affordable-housing developer TREK Development on the project, which is anticipated to cost $24 million and will require city approval.

Funding for the affordable housing part of the development will come from the Richard King Mellon Foundation, the Heinz Endowments, and the Claude Worthington Benedum Foundation as well as local and state housing and development agencies.

The Lytle Street building will have 33 one-bedroom units and 17 two-bedroom apartments.

Commercial and retail space, a community room, and a fitness center are planned for the first floor of the building. Resident parking will be provided behind the building.

Officials said the Lytle Street project is meant to be the first of multiple developments on the same block.

Ryan Deto is a TribLive reporter covering politics, Pittsburgh and Allegheny County news. A native of California’s Bay Area, he joined the Trib in 2022 after spending more than six years covering Pittsburgh at the Pittsburgh City Paper, including serving as managing editor. He can be reached at rdeto@triblive.com.