A tree-lined pond with an island is the focal point of this sleek glass and wood 4,300-square-foot Harry Bates-designed modern barn in Water Mill listed for $4.95 million.

The five-bedroom, 4.5-bath home on a 1.85-acre flag lot was built in the early 1970s and designed to maximize views of the pond, which has an island and a single weeping willow in the center. His architectural firm, Bates Masi, commandeered subsequent additions, ensuring architectural continuity.

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“It’s extremely scenic, and it’s very quiet,” says listing agent Laura Nigro of Douglas Elliman Real Estate. She is co-listing with Carl Nigro, also of Douglas Elliman, and Marilyn Clark of Sotheby’s International Realty.

The home includes a great room with walls of windows that opens to a large eat-in kitchen with a fireplace — one of five in the residence — and stainless steel appliances. There is also a screened porch off the kitchen for alfresco dining and grilling.

A master suite is one of two second-floor bedrooms that open to separate balconies overlooking the pond and pool. On the first floor, the great room, foyer, first-floor bedrooms and den open to a deck that wraps around a heated, vanishing-edge pool.

The deck steps down to a grassy expanse, which includes walking paths near the pond. Mature landscaping along the front of the property includes a flowering mimosa tree.

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The home is equipped with a generator and dual heating and air conditioning systems to serve each side of the house. There is also a one-car detached garage and an outdoor shower.