shutterstock_89885056After a modeling career spent pitching everything from fashion to cosmetics to cars, Christie Brinkley is now on a real-estate selling binge.

The quintessential supermodel, who has substantial real estate holdings in the Hamptons, sold a home there a few years ago for $10 million and earlier this year put a $29.5 million price tag on an even larger compound nearby.

Now the uptown girl wants $25 million for a waterfront colonial home in Sag Harbor built in the 1840s.

Brinkley is downsizing because of her busy travel schedule and because her children have left the nest, listing agent Enzo Morabito of Douglas Elliman Real Estate told The Wall Street Journal.

This is the second time Brinkley has listed the Sag Harbor estate. The first was in 2010, when she asked $15.75 million and got no buyers, Morabito said, because the market was still recovering from a downturn.

Now Hamptons homes are hot, and this one would be priced closer to $40 million if it didn’t need some work, Morabito told the Journal.

Set on 4.5 acres overlooking the harbor, the 5,500-square-foot mansion boasts three stories of stately elegance. From grand, two-story columns out front to wide-plank floors and multiple fireplaces inside, the home has 19th-century character to spare.

Gracious living spaces include a kitchen with soapstone and marble counters, and an expansive living room, plus a great room and formal dining room. The home’s 5 bedrooms and 5.5 baths include a large master suite featuring a sitting room and a terrace with water views.

The property is situated along more than 300 feet of sandy beach, with sunrise views of sailboats and yachts and a bayside swimming pool.

Photos by Jake Rajs and courtesy of Douglas Elliman Real Estate.