Amityville, 99 Harbor, $449,990

Set on Ketcham's Creek, Snug Harbor is a 176-unit, 55-and-older condo community offering several amenities. Residents have access to a clubhouse, in-ground pool and tennis courts. For an additional fee, there are boat slips, says the listing agent, noting Ketcham's Creek is a navigable waterway that leads to the Great South Bay. The village beach is also within walking distance. Lagoons and green expanses are part of the landscape, while all units have new roofs and siding.

As for the two-story town house featured here, it overlooks a lagoon and has a covered patio and second-floor balcony. The balcony is off the master suite. There is one second bedroom and bathroom and laundry room on this level as well. On the main floor, there is a half-bath, the living room, dining room and eat-in kitchen. Wood floors, a sliding-glass door and central air conditioning are among some of the other features.

Total taxes, including an additional village tax, are $5,043. Monthly common charges are $480. Jerry O'Neill, Coldwell Banker Harbor Light, 631-842-8400.

Glen Cove, 606 Roblu Lane, $409,990

Landing Cove, a new condo community for adults 55 and older is being built on a high elevation overlooking downtown Glen Cove. It will comprise more than 70 units -- each about 1,350 square feet with two bedrooms and two bathrooms, says the listing agent. Kitchens designed with granite countertops and stainless steel appliances are standard, the agent adds. Other features include ceramic tile flooring, closet space and central air conditioning.

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First-floor units come with a patio, while second-floor units -- such as the one featured here -- have cathedral ceilings. Three models are open for viewing and three have sold, the agent says, noting the first occupancy is scheduled for December. The property will be lushly landscaped with gardens and will offer seating and boccie courts. The YMCA, beaches, tennis courts, golf course and eateries are nearby.

Taxes are $9,347. Monthly common charges are $305. Terry Sciubba, Sherlock Homes Realty Corp., 516-671-1717.

East Meadow, 373 Summer Court, $525,000

Built in 2010, The Seasons at East Meadow is a gated community with security for adults 55 and older. A clubhouse with a gym, movie theater, card and game room, as well as an outdoor pool, are included amenities.

Across from the clubhouse is this featured second-story end unit with two bedrooms and two bathrooms. It comes with upgrades such as wood floors, moldings and ceiling fans, as well as granite countertops, stainless steel appliances and a backsplash in the kitchen. Oversized windows and recessed lighting and a balcony are among some of the other details.

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Taxes are $8,372, and monthly maintenance fees are $346. Mollie Grossman, Douglas Elliman Real Estate, 516-521-5335