"Michelle, Jason and Matilda seem very happy here, the building is beautiful," a source told Mail Online. "They've been here a few months now and they look right at home."
Williams and her 6-year-old daughter who is the spitting image of the late Brokeback Mountain star had lived in a Brooklyn brownstone. The My Week With Marilyn star and Heath had bought that property in 2005. The Australian A-lister shockingly died in January 2008 at age 28 from an accidental prescription drug overdose.
Jason's been something of a father figure to Matilda, who turns 7 years old Saturday.
Boyfriend Daycare – Jason Segel Babysits Michelle Williams' Daughter Matilda Ledger