A lot at 2012 Chestnut St. has been rubble-strewn since February 2024 and is finally headed toward construction, with the Philadelphia Housing Authority and developer Alterra Property Group announcing that their long-delayed 121-unit apartment tower has cleared its final approvals. Construction on the 14-story building is expected to begin next spring, capping nearly 11 years of delays since the project was first proposed.
PHA president and CEO Kelvin Jeremiah said the financial transaction has closed and all regulatory approvals are now in hand, according to philadelphia.today. The site itself carries some baggage: the U.S. Department of Housing and Urban Development had to review PHA's 99-year ground lease covering the rubble-strewn parcel, a step that stalled the project for another nine months awaiting HUD approvals, per the same outlet's reporting. Jeremiah attributed much of the delay to HUD staffing losses that slowed the review process.
The holdup wasn't just bureaucratic. Because 2012 Chestnut St. sits inside the Center City West Commercial Historic District, a National Register-listed area, and involved federal funding, HUD determined in a Section 106 review that the redevelopment posed an adverse historic effect, triggering a multi-party Memorandum of Agreement before work could proceed.
A Decade-Long Redesign
The project has changed dramatically since PHA and Alterra first floated redeveloping the site back in 2016. Early plans called for a 200-unit building, only 40% of them affordable, but the final approved design scaled down to 14 stories and 121 apartments while boosting the affordable share to 60%, according to Philadelphia Magazine. Earlier architectural work was drafted by Cope Linder Architects before the project switched to JKRP Architects, which ultimately designed the 14-story, 112,610-square-foot mixed-use building, with Gilbane Building Company serving as general contractor, as reported by the Philadelphia Inquirer.
The financial structure shifted too. In April 2025, PHA modified the deal so the housing authority directly funds and retains full ownership of the building, with Alterra Property Group serving as developer and property manager rather than owner, Philadelphia Magazine reported. That marked a departure from original plans that had envisioned Alterra owning the building on leased land.
What's Actually Getting Built
Once complete, the tower will include 63 one-bedroom apartments, 30 two-bedroom units, and 28 studios, along with about 2,000 square feet of commercial space, per philadelphia.today. Units will be reserved for households earning up to 80% of Philadelphia's area median income, with the threshold for a two-person household set at roughly $78,500 per year; the remaining units will rent at market rates. The building will rely on off-site parking rather than an on-site garage — a design choice that lines up with Philadelphia's CMX-4 commercial zoning rules and the West Chestnut Street Overlay, which require zero off-street motor vehicle parking spaces at the site and instead call for 42 Class 1A bicycle parking spaces, according to Philly YIMBY.
The site has a long institutional history. The former four-story headquarters at 2012 Chestnut St. was home to PHA until 2009. PHA's administrative offices are at 2013 Ridge Avenue. The former headquarters was demolished, and the site has been a rubble-strewn lot since February 2024.
Why 73 Subsidized Units Matter So Much
Once finished, the tower will be PHA's only apartment property in Center City, giving subsidized tenants direct access to downtown transit and jobs in one of the region's priciest submarkets. With Philadelphia County's two-bedroom fair market rent listed at $1,737 a month in 2026, that access matters, according to the Affordable Housing Hub.
In that context, delivering even 121 units — with 73 reserved as affordable — in Center City represents a significant policy win for local officials, even as project partners had originally promised an early-2026 construction start that slipped further before this month's approvals.
