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Uptown girl and legendary supermodel Christie Brinkley, who has a large portfolio of upscale properties, is relisting her gorgeous Colonial in Sag Harbor, NY, for $25 million. That's a big jump from the nearly $16 million she wanted for the beachfront property in 2010.

The 5,500-square-foot house, built in 1843, sits on 4.5 acres and claims 327 feet of beachfront overlooking Sag Harbor's open bay.

The five-bedroom, five-bath house, which has been renovated since Brinkley last tried to sell it, features many period details, including wide-plank pine floors, multiple fireplaces, and built-up moldings around door entrances. The open kitchen has soapstone and marble counters.

The master suite has a fireplace. A kid's room, which looks like it's built into the roofline, has a freestanding tub next to two beds.

Enzo Morabito of Douglas Elliman is the listing agent for Brinkley's $30 million estate in Bridgehampton, which hit the market in June. That 20-acre compound includes a four-bedroom main house with a 50-foot observation tower; four-bedroom guesthouse with greenhouse; and an art studio.

"Christie is not only one of the most beautiful women in the world, she's also one of the most savvy entertainment entrepreneurs I've ever met," Morabito told us. "In the world of real estate, I've been truly impressed with her real estate acumen, because she gets the golden rule of real estate: location, location, location."