Warren, Connecticut. Joseph Cicio designed the late Joan Rivers' home; this three-bedroom country house was his personal residence. Built in 1950, it has three fireplaces, a library, and a master suite with a sitting area and marble spa bathroom.

The 6.8-acre property includes manicured gardens, a bluestone patio, stone walls, a post-and-beam barn, and a pool with a cabana. $2,495,000. Mark Madonna and Jeffrey Phillips, William Pitt/Sotheby's International Realty, (860) 868-6600.

Venice, California. This home's interior was the vision of Los Angeles designer Kim Gordon. The four-bedroom house has French oak floors, custom windows, a curved staircase, a secret playroom with a mural, and a master bedroom with floor-to-ceiling windows, spa bathroom, and balcony.

The yard includes an oversize Jacuzzi, a covered patio, an outdoor shower, and a bonus studio. $3,895,000. Kerry Ann Sullivan, Halton Pardee + Partners, (310) 621-2662.

Palisades, New York. The Clock House, designed by Ernest de la Torre, stands in the creative community Snedens Landing. The 1957 three-bedroom home features a metal-and-glass staircase, 19th-century barn beams, a Georgian marble fireplace, and a master bedroom with upholstered walls and a silver-paper ceiling.

The property, in a dell with mature gardens, is a short walk from the Hudson River. $3,600,000. Richard Ellis, Ellis/Sotheby's International Realty, (914) 393-0438.

New York City. Set in a Park Avenue mansion built by Stanford White, this two-bedroom duplex condo is the creation of Matthew White, one of Architectural Digest's "Top 100 Designers."

Details include coffered ceilings, a sweeping staircase leading to a mezzanine library, stained-glass windows, and a master bedroom with 12-foot ceilings. The Beaux-Arts building is close to Grand Central Terminal and the New York Public Library. $4,350,000. John Barbato, Stribling, (646) 613-2633.

Northbrook, Illinois. Renowned designer Richard Himmel furnished this 1971 estate as his country retreat. The four-bedroom house showcases different styles in each room; details include floor-to-ceiling windows, herringbone wood floors, multiple skylights, and wall space for large art.

The 2-acre Japanese-influenced property has a pool, a koi pond, and flowering trees. $1,395,000. Honore & Kelly Frumentino, KoenigRubloff Realty Group, (847) 945-7653.

Phoenix. Built in 1979, this three-bedroom home has been extensively remodeled by the selling agent and owner, with new mechanics, bathrooms, and kitchen. The open-concept space features exposed beams, a master bedroom with a sliding barn door, and a kitchen with graphic tiles.

The walled property is a prepped canvas for future landscaping, and close to area services. $399,999. Tim Cusick and Wes Ballew, The Cusick Group, (480) 759-1576.