The $3.5 million Bel Air house that Nancy Reagan was reportedly interested in has been abruptly taken off the market, according to columnists Tom Poster and Phil Roura. The owner, playwright Neil Simon, "has determined that he does not want to sell the property at this time," his lawyer, Alan Alexander, was quoted as saying . . .

Swedish actress Liv Ullmann will marry Boston businessman Donald Saunders Sunday in Rome, according to Ullmann's press agent, John Springer. Guests will meet at the Hassler Hotel and be brought to the wedding site, which was not disclosed . . .

Rock singers Dee Snyder of Twisted Sister and Frank Zappa will appear before the Senate Commerce, Science and Transportation Committee at a Sept. 19 hearing that will focus on the issue of putting warning labels on record albums that contain explicit lyrics . . .

Patricia Krenwinkel, a member of the Charles Manson "family," was denied parole for the sixth time Wednesday. A three-member panel of the California Board of Prison Terms deliberated less than an hour before denying Krenwinkel, 37, parole from her life sentence for her involvement in the murders of actress Sharon Tate and six others in 1969 . . .

Charlotte Carle Duncan of Ocean Ridge, Fla., says she will continue to hang her laundry on her backyard clothesline despite a town ordinance and neighbors' complaints. "I don't want to go to jail over it, but I will," she said. The town code prohibits residents from hanging laundry unless the area is screened from the street and nearby residences. "If esthetics is an objection, I fail to see what could possibly be objectionable about the sight of clean, colorful clothing cheerfully flapping in the breeze," Duncan wrote in a letter to the Town Commission. "If delicacy is a problem, I could dry the undies inside a pillowcase."