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At close · Thu, Sep 24, 2026
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Home›Real Estate›Industry›Monday Properties wins Arlington approval for Rosslyn…

Monday Properties wins Arlington approval for Rosslyn mixed-use redevelopment

The 2.1-acre project will replace two 12-story, 1964 office buildings with two 27-story multifamily towers adding 831 residential units plus retail and parking.

Monday Properties said the Arlington County Board approved a major site plan amendment for 1401 Wilson Boulevard and 1400 Key Boulevard in Rosslyn, clearing the way for a mixed-use redevelopment.

The parcels total 2.1 acres and are currently occupied by two contiguous 12-story office buildings built in 1964, the company said.

Under the approved plan, the site will be redeveloped into a mixed-use destination with two 27-story multifamily residential towers totaling 831 units, along with 28,959 square feet of ground-floor retail that includes a community-anchoring grocery store and a partially above-grade parking structure.

ConnectCRE reported the approval, with Monday Properties CEO Tim Helmig saying the project will deliver 831 new residential units in a transit-rich area and build on the Westreich family’s legacy in Rosslyn since the late 1950s.

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