825 Fifth Avenue, Apartment tower on Fifth Avenue, Manhattan, US

825 Fifth Avenue is a 23-floor Art Deco apartment tower on Fifth Avenue between East 63rd and East 64th Streets, built of tan brick with rows of small rectangular windows. A lower red-brick wing with arched, stone-surrounded windows and a deep cornice adjoins it, and the building is topped by a steep-pitched red-tiled roof visible from a distance.

Built in 1926–1927 by the Paterno Brothers, 825 Fifth Avenue was developed by Charles V. Paterno, who listed it as an apartment-hotel so he could legally raise 23 floors instead of the 15 allowed for apartment houses. It opened as a cooperative with 77 apartments, later reduced to 64 units. The Real Estate Record & Guide praised the $1 million building's "unusually striking upper-floor effect."

The building's name comes simply from its address at 825 Fifth Avenue. By 2025 it was one of only three apartment buildings on the Upper East Side with its own restaurant, alongside 1 East 66th Street and 960 Fifth Avenue. Its red-tiled steep-pitched roof makes it recognisable from far along the avenue.

The building sits near Central Park and multiple subway stations, making it easy to access. The area offers shopping and services within walking distance along the avenue.

The building was listed as an apartment-hotel so that 23 stories could be built where apartment houses were limited to 15. Its steep red-tiled roof makes it visible from a long distance, and by 2025 it was one of only three Upper East Side apartment buildings with its own restaurant.