Angelina Jolie and Brad Pitt are ready to take London by storm!

“They’re house hunting in London,” a source told Us Weekly. "Angie wants to slowly immerse herself in E.U. politics."

The megastars toured a $39 million, seven-bedroom Westminster mansion in June, but have yet to put down an offer.

The source says, “It’s a huge investment. Neither of them wants to throw down that amount of cash."

Angie has gotten very active in London. In late June, the Salt star went to a luncheon as part of her work on UK foreign policy and her ongoing campaign to end sexual violence in war crimes.

While the duo are actively looking, the source insists there's no rush to make the big move. Angelina isn't interested in making, “a sudden career change,” adds the source. “She doesn’t want to lose her directing momentum."