Dwight Capital is moving and expanding to 20,000 square feet at 787 Eleventh Ave. between West 54th and 55th streets.

The lender will have a portion of the tenth floor overlooking the Hudson River. The former industrial building owned by the Georgetown Company is undergoing a complete renovation. It will also become the headquarters for Bill Ackman’s Pershing Square Capital Management.

Dwight is expanding and moving from 5,846 square feet on the 30th floor of Boston Properties’ 250 W. 55th St., where it moved in 2015. Dwight was represented by Savills Studley’s Daniel Posy, who will sublease its current spot.

The Georgetown Company was represented by Mary Ann Tighe, Evan Haskell, Arkady Smolyansky, Ben Joseph and Ross Zimbalist of CBRE. The asking rent was $85 per square foot.

Georgetown CEO Adam Flatto said, “There are few buildings with floor plates over one acre that also have light and air, and this is another example of tenants moving to the far West Side.”