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Reese Witherspoon is in the market for a Malibu beach home ... and she's looking for only the best! The actress/producer checked out Brad Pitt's 4-bedroom mansion on Sunday. Asking price, $13.75 million!

Pitt bought the 4,088-sq ft estate in 2005 for $8.4 million.

X17online can report exclusively that Reese, husband Jim Toth and kids Ava and Deacon visited five houses on Sunday, but the Pitt palace was Witherspoon's favorite. The group stayed at all the other homes for around 15 minutes, but when they arrived at Brad's former pad, the Oscar-winning actress "seemed extremely interested and visited the house for close to 45 minutes," our photographer tells us.

The 4-bedroom, 4-bathroom mid-century modern home features bamboo flooring, glass walls overlooking the ocean, three fireplaces, a tennis court and beach access to a private cove. As for the views, the pad faces the Pacific and Point Mugu State Park. Sounds divine!