Christie Brinkley sipped Root Out whiskey floats while touring 12 Brennans Moor in Water Mill at Social Life’s Memorial Day Bash with her daughter Sailor.

The south-of-the-highway spec house built this year is on the market for $8.49 million. It has seven bedrooms, 10 full bathrooms and two powder rooms across 9,286 square feet.

The home opens to a double-height foyer that leads to a great room with floor-to-ceiling glass paneling and glass doors that pour on to a bluestone patio.

There’s also a living room with a woodburning fireplace and a pool — all on 1 acre.

The listing broker is Vincent Horcasitas, of Saunders & Associates.