Campion Platt has hung out with some of Hollywood’s biggest celebrities, and we’re not talking on the red carpet. He’s the architect/interior designer behind lavish hotels and homes belonging to anyone who’s anyone, from Jay-Z to Al Pacino. The Massachusetts native, who splits his time between Palm Beach and New York’s SoHo, will be stopping by the ORNARE showroom in the Design District Friday 6-8 to sign copies of his latest book, Made to Order. Guests will be able to ask the star designer what makes him tick and get advice about their own personal spaces. We caught up with Platt before he got down to Miami:

Who was your favorite celebrity to work with? Meg Ryan. She loved secessionist art and the Glasgow art and architecture movement from the 1930s. We looked at [famed Scottish architect] Charles Rennie McIntosh as a departure point and then made it modern and for NYC. She was great to work with and very similar to how she is onscreen: highly intelligent, well informed and very gracious. We transformed the kitchen, hallway, and maid’s room into one large room with a center sink area. The cabinets were walnut, the island zinc metal and soapstone—materials used in the ’30s—the ceilings coved with a pulley lighting system

What was it like working with Al Pacino? We did not meet much; however he wanted everything relaxed and informal, like his lifestyle. We worked on both his house on the Hudson River and a NYC apartment. Conan O’Brien must have been fun. Conan was great. Very smart, gave me lots of latitude to design something that fit the Majestic (“Art Deco style”) building on the Upper West Side. I did two projects with him before he moved to L.A. for The Tonight Show. He has a cool guitar collection.

What was your most unusual celebrity request? A specialized custom meeting/entertaining and viewing sofa for Russell Simmons.

Most lavish request? A sound recording studio for Roger Waters of Pink Floyd.

We read that you worked on a house in Harlem where Jay-Z’s video was shot for “Blue Magic.’’ How did you get involved with that project? This was a show house for Esquire magazine where we designed a double story living room looking over Central Park. Jay-Z came to a party their and loved the space, the feeling, the vibe of a room we call “Heavens Chamber.” You can see the balcony at night in a couple of shots on YouTube

- Madeleine Marr