Tennis superstar Novak Djokovic is making an appreciation-based investment: reportedly smitten with the bright, contemporary designs of architect Renzo Piano, Djokovic has purchased two unconnected apartments in the Piano-designed 565 Broome Soho towers.

Piano, who in 1998 took home the Pritzker Prize—arguably the architecture world’s most prestigious award—carries a CV that includes the New York Times building, the L.A. County Museum of Art, and London’s The Shard. His work is brashly iconoclastic, and the Soho project is distinguished by his signature illumination and fluidity. The selling price of the apartments has not been revealed, but two-bedroom units like the ones Djokovic purchased begin at $5.5 million.

565 Broome Soho is still under construction. The apartments will be accessed through private elevator entrances, and will feature 10-foot ceilings, plenty of glass for a liberating sense of space, custom white oak cabinetry, heated floors and slab marble walls. Some units will feature 25-foot saltwater pools and expansive private terraces. Building amenities will include a 55-foot pool, fitness center and spa, bar and lounge with library, and automated parking.

Djokovic’s purchase follows a similar investment: he also purchased an apartment in Piano’s Miami Beach building Eighty Seven Park. The oceanfront project’s rounded lines take in panoramic ocean and cityscape views.

Novak Djokovic, a tennis player from the age of four, has won twelve Grand Slam titles. In 2007, he founded the Novak Djokovic Foundation, whose stated mission is to foster the development of disadvantaged children.