Officers responding to the home with police dogs found the door ajar, but nothing was missing and police ruled out a burglary, said police spokeswoman Gwendolyn Crump. A maid at the home told police she must have inadvertently left the door open, triggering an alarm, Crump said. Police officials said they were contacted by the alarm company.
Officers left less than two hours after arriving.
A message left with Strauss-Kahn's attorney wasn't immediately returned.
Strauss-Kahn quit his post as IMF chief on May 18 after he was accused of sexually attacking a New York hotel maid. He has denied the charges and is living under house arrest in Manhattan pending his case.
Neighbor Michele Camden, 55, said she had seen a moving truck outside the Strauss-Kahn house Wednesday and assumed that someone must have left a door open. She said she had never seen Strauss-Kahn at the house.
"He's not going to hobnob with someone like us," she said.
The house is located across the street from a park and within short walking distance of the bustling shops and restaurants of the upscale neighborhood.
Camden said neighbors might be prone to whispering some "underhanded comments" about each other, but mostly, "We just leave people alone."
Desmond Butler contributed to this story.