By Gus Saltonstall

The first major development in the future of the former ABC 7 campus on the Upper West Side came last Friday, when Extell Development submitted plans to the city for a permit to put up a 25-story building at 37 West 66th Street, Department of Buildings records show.

The address is part of the former ABC 7 campus that covers the square block of West 66th to 67th streets, between Columbus and Central Park West. In recent months, demolition work has taken place to clear the site and make way for new development.

Extell Development bought the site in 2022 for around $930 million.

The plans filed on Friday propose a 25-story mixed-use building that would be 355-feet tall, with 384,962 square feet for residential space and 192,481 square feet for commercial space.

The ne

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