Creating a new office space and a new name were a priority for 50-attorney Otterbourg when the New York-based firm signed a 15-year extension for 45,000 square feet at 230 Park Ave. Formerly called Otterbourg, Steindler, Houston & Rosen, the firm has “streamlined its name” as part of a rebranding.

The landmark Park Avenue tower, constructed in 1929, is a 34-story, 1.4-million-square-foot building also known as the New York Central Building. It is owned by Monday Properties and Invesco Real Estate.