A new four-story office building will headline a major mixed-use development in Plano, developers announced Oct. 2 as crews began work on the Mustang Square project.

Thakkar Developers and Heady Investments said at a construction groundbreaking ceremony that the development would include a 90,000-square-foot office building named HQ Center. About a quarter of the office space is already leased, according to a news release.

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