Alexandre de Betak, a renowned events producer and designer, has orchestrated some of the fashion world’s most memorable shows over the last three decades.

There were the Victoria’s Secret extravaganzas, the flower mountain at the Louvre for Christian Dior, and the hot pink runway built for Jacquemus amid rolling lavender fields in the south of France. Just this month, Mr. de Betak turned heads with a street spectacle for Tommy Hilfiger and Zendaya at the Apollo Theater in Harlem.

So, it should come as no surprise that the SoHo loft he shares with his wife, Sofia Sanchez de Betak, a fashion and travel influencer , and three children would incorporate a little drama and whimsy, too. Among the unit’s flourishes: a swing near the kitchen; a tatami room with sake dispensers; and a hidden party room, complete with stripper pole.

Mr. de Betak bought the third-floor apartment, at 136 Grand Street, for $3.9 million from the artists Thomas Buehler and Rosemarie Schiller in 2013. He spent the next two-plus years (and almost as many millions) on meticulous top-to-bottom renovations. But now the couple, who married in late 2014, are eager to start another home project, and they’re putting the property back on the market.