47 Plaza Street West is an apartment building designed by the noted architect Rosario Candela and completed in 1928 in Park Slope, Brooklyn, New York City.

It has been suggested that Candela was likely inspired by the Montauk Club, a Park Slope landmark two blocks up Plaza Street, although there is no written record to support this.

The point was designed with a right angle at the corner of Plaza and Union streets so that, if looked at from the correct perspective, the structure appears to be a wafer no wider the six feet.

Candela designed only two pre-war residential buildings in Brooklyn, 39 and 47 Plaza Street, both for real estate developer Jacob Mark, both on the same block.

The manually operated elevators at 47 Plaza Street West were featured in a New York Times article in the December 15, 2017 edition of the newspaper https://www.nytimes.com/2017/12/15/nyregion/manual-elevators-operators.html.