A long-delayed redevelopment of two office buildings in Pentagon City appears to have pivoted to an office-to-apartment conversion project.
A site plan application, filed last week at the vacant Transportation Security Administration office buildings at 601 and 701 12th Street S., would abandon plans to demolish the existing structures and rebuild.
Instead, the proposal — first reported by the Washington Business Journal — calls for converting the two towers into a pair of mixed-use buildings with a total of 637 units and about 31,000 square feet of commercial space. The project would retain the existing 866 parking spaces at the two 1980s-era office buildings.
According to the WBJ, the real estate agency JM Zell Partners intends close on the properties once the site plan gets approved and begin construction on the $300 million project by the end of the year. Despite the price tag, it’s reportedly still much less expensive than a teardown.
The TSA left the current office buildings in March 2021, relocating to Springfield.
The current owner, Brookfield Properties, presented plans to redevelop the site with four towers back in 2019, but put that project on hold in 2020. This was at the request of Arlington County planners, who were working on a new sector plan to guide future development in Pentagon City, per the Washington Business Journal.
Brookfield filed preliminary plans in 2023, outlining how it would redevelop the site in three land bays with a “green ribbon” running through the middle.
A series of office-to-apartment conversion projects have gotten underway in Arlington since the County Board adopted a more streamlined path for adaptive reuse projects in 2024.
The county’s private development page lists four adaptive reuse projects that have received County Board approval since July 2025: one at 3601 Wilson Blvd, one at 2100 and 2200 Crystal Drive, one at 4100 Fairfax Drive and one at 1320 N. Courthouse Road.
