Gary Tischler and Richard Coles’ Vanbarton Group closed Tuesday on the purchase of 425 Lexington Ave. for $700 million.

HFF marketed the building, which takes up the eastern blockfront between East 43rd and 44th streets, on behalf of JPMorgan Chase.

Vanbarton purchased the 780,000-square-foot office building on behalf of pension fund clients.

CBRE will now lease the only two vacant floors, with an asking rent in the mid-$80s per square foot.

Vanbarton has also hired CBRE’s Darcy Stacom for the marketing of 160 Water St., a fully leased office building that could become a future residential conversion. The company paid $165 million in 2014 and expects to now rake in around $240 million.