The more rooms the interior designer Alyssa Kapito imagines, the choosier she is about the contents inside. Her edited interiors tend to leave space around furniture and accessories that allow pieces to be admired individually rather than burying them in too much decorative fluff.

“I think I’ve isolated what my passions are,” said Ms. Kapito, 38. “I love collecting. I love auctions. And I love furniture as art.”

Ms. Kapito uses the space both for catching up on work and relaxing.Clark Hodgin for The New York Times

That interest culminated in Galerie Alyssa Kapito, an arm of her studio she launched in 2023 to sell vintage furniture and limited-edition products she designs such as glass vases for the Venetian company Laguna~B.

Ms. Kapito also recently spent a year-and-a-half creating a new home for her family on Manhattan’s Upper East Side by gut renovating a 1920s apartment that was in estate condition. The resulting space is a serene retreat that celebrates her artful finds, even with three young children running about.

She furnished the room with sculptural pieces.