Shirley

138 Grandview Dr.

$449,900

Between the steeply pitched roofs in the back of this waterfront Contemporary is a floor-to-peak wall of glass looking out to Bellport Bay. Custom built by the current homeowner, “the concept was that the house was to look like the bow of a boat,” listing agent Gerry Sapanaro said of the design of the two-story A-frame house. The wall, featuring multi-paneled fixed pane windows, has double sliding glass doors that lead from the living room to a wraparound deck. The 1980 home includes three bedrooms and two bathrooms. The living room, which boasts a stone fireplace and hardwood floors, is part of an open floor plan that also includes an eat-in kitchen and dining area. Two bedrooms are on the first floor, with both offering water views. The master suite encompasses the entire second floor and includes a private bathroom, a sitting area, multiple closets with built-ins, and sunset views from the wall of windows. The 0.29-acre property, with a walkway down to the water, is a 2.7-mile drive to Smith Point Beach. The taxes are $12,905. Gerry Sapanaro, Moriches Bay Realty, 631-878-0003

Roslyn

90 E. Broadway

$950,000

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The all-seasons room in this expanded Cape features a back wall composed of dual sets of sliding glass doors that overlook the wooded property. The room, on the lower level, also has two smaller side walls of windows and a separate room that could be used as an art studio. Plus it’s heated, so “whether there’s two feet of snow or beautiful sunshine, you can utilize the room,” says listing agent Renee Hughes of Daniel Gale Sotheby’s International Realty. The three-bedroom, three-bathroom home features a formal living room that boasts a wood-burning fireplace, sliders that open to an elevated deck and vaulted ceilings with skylights. A formal dining room leads into a new contemporary custom Italian kitchen with a center island and porcelain tile floors. Hughes says two rooms were opened up to form a large master bedroom, which is on the main level. Two bedrooms on the upper level share a full bathroom. In addition to the all-seasons room, the lower level features an open floor plan, mudroom, office/guest room and full bathroom. The 0.32-acre property, which includes an attached garage, is backing Duck Pond. Taxes are $13,806. Renee Hughes, Daniel Gale Sotheby’s International Realty, 516-996-9737

Amityville

25 Dewey Ave.

$699,990

The wall of glass in the family room of this waterfront split-level offers views of a canal that leads to the Amityville River. Two nearly floor-to-ceiling solid pane windows, along with an adjacent full pane glass door, overlook the backyard of the 0.26-acre property, which offers 94 feet of bulkhead. The family room also boasts a fireplace and a corner wet bar. All four of the bedrooms in the home offer water views, says Jerry O’Neill of Coldwell Banker Harbor Light. The master bedroom features a large fixed-pane window flanked by two smaller side windows that look down on the canal. There are three bathrooms in the house, including in the master suite, which features a steam room, a free-standing tub and heated towel racks and floors. The midcentury modern home, built in 1957, has an open floor plan that includes the living room, with a fireplace and another large fixed pane window between two double-hung windows, a kitchen with glass and quartz countertops, stainless steel appliances and a center island, and a dining room with a bay window. The property also includes a paver patio, a new shed and an attached two-car garage. Taxes are $21,641. Jerry O’Neill, Coldwell Banker Harbor Light, 631-842-8400