LONDON — Households with conspicuous art collections are not exactly rare in this global financial capital. But this one in Mayfair embraces a tradition of regular buffet dinners of Persian cuisine, a treat for artists and art lovers both .

For the last couple of decades, the Iranian-born Fatima Maleki and her husband, Eskandar, have been donors to museums such as the Tate, helped found new prizes and collected art, as well as hosting artists at Ms. Maleki’s famous dinners. At vast tables, guests fill their plates with foods redolent of Iran, like albaloo polo, a rice dish made with sour cherry, and pomegranate stew eaten over saffron rice.

In the spacious entrance is a towering iron sculpture of a pixelated figure by the British sculptor Antony Gormley. It takes the place of an earlier Gormley featuring spikes that ripped guests’ clothing and got tangled with their handbags. Upstairs is a lush green-and-red painting by Chris Ofili that Ms. Maleki bought at a Sotheby’s auction in 2009, drawing media coverage with her high bid.