The Park Theatre, originally known as the New Theatre, was a playhouse in New York City, located at 21–25 Park Row in the present Civic Center neighborhood of Manhattan, about 200 feet (61 m) east of Ann Street and backing Theatre Alley. The location, at the north end of the city, overlooked the park that would soon house City Hall. French architect Marc Isambard Brunel collaborated with fellow émigré Joseph-François Mangin and his brother Charles on the design of the building in the 1790s. Construction costs mounted to precipitous levels, and changes were made in the design; the resulting theatre had a rather plain exterior. The doors opened in January 1798.