building. The demolition was completed by February 25, 2022. Building The later building was designed in the French Renaissance style by architect Ulrich J. Huberty, who also designed the Prospect Park Boathouse and Tennis House. The building carried the address 263 Prospect Avenue. Grand Prospect Hall faces the Prospect Expressway (NY 27) to the south. Originally, there was a beer garden around the building, which may have contained a Ferris wheel as well as an "electric tower", but these were removed around 1914. Facade The building was four stories tall and faced in buff-gray brick, with pressed metal decoration that was originally colored to resemble limestone. The windows were surmounted by pediments, while the top of the building had a cornice with a sculpted pediment in the center. The first floor was designed with storefronts, as well as an entrance with columns at the center; these were subsequently modified. It was designed with a frontage of and a depth of . A one-story annex continued east of the main structure. The side and rear facades were clad with brick and did not contain any ornamentation, while the roofs of the building were flat. Features Grand Prospect Hall could fit 8,000 people in total, or 5,925 people when used as a dining venue. Covering , it had several rooms including a garden area and a large ballroom. Grand Prospect Hall featured the first Otis bird cage elevator in New York and was the first fully electrified public building in Brooklyn. The elevator cab was constructed like a cage and was wrapped by a staircase on the western side of the building. The basement was also designed with a bowling alley, a billiard room, a kitchen, and a laundry. The bowling alley was divided into two sections and had fourteen lanes in total, though the bowling alley was long abandoned by 1999. Electric dynamos, engines, and boilers were installed beneath the sidewalk. There was also a roof garden. The front portion of the building was arranged around a large central staircase. The main entrance was designed with an entryway measuring wide. The central staircase, made of cast iron with marble treads, connected the entrance foyer with a two-story-high hallway on an upper level. At the first landing was a pair of decorative box offices. The first floor of the front portion was designed with a restaurant, club room, "Alt Deutsche" beer hall,