07/31/2011 at 04:00 PM EDT
recently sold her Beverly Hills home, but before leaving for good, the actress threw one last bash at the recently unloaded property.
"Jen had a party at her Beverly Hills house Friday night – a little going away party since she plans on spending so much more time in New York," a source tells PEOPLE.
"She just wanted to have one more great get together with friends at the house before she moved out," adds the source.
Justin Theroux, who is about to celebrate his birthday, was also in attendance at the home, which was once featured in Architectural Digest
The couple recently went house hunting
in Los Angeles but have yet to decide on a new residence.