Myron Goldfinger, whose monumental modernist houses around New York made him a favorite architect of the city’s rich and powerful during the 1980s, died on July 20, in Westchester County, NY. He was 90.

Mr. Goldfinger designed his houses by amassing basic shapes — half-circles, blocks, triangles —  into dramatic sculptural statements. His interiors were likewise unusual, including bridges, conversation pits, and intimate hallways that led to living rooms with double-height ceilings.

“He was a complete original,” said Timothy Godbold, an interior designer working in Long Island’s fashionable Hamptons, where Mr. Goldfinger’s houses dot the wealthy enclaves. Mr. Godbold pointed out that Mr. Goldfinger’s work went out of fashion when clients returned to more traditional styles in the postmodern era, adding that younger architects today often can be seen fawning over a Goldfinger house. “We’re all going to be loving it in a few years,” he told The New York Times.