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MLS ID KEY1044155Last updated Oct 7, 2026

Single Family

40 Highwater Avenue

Pending · Oyster Bay · Nassau County, NY 11758

Bedrooms
6 Beds
Bathrooms
4 Baths
Year built
2017
Est. monthly taxes
$1,833.33
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About this home

Exceptional Waterfront Estate | 6 Bedrooms | 4,000 Sq. Ft. | ¾ Acre Experience the best of waterfront living in this impressive 6-bedroom, approximately 4,000-square-foot home, privately situated on nearly ¾ of an acre. Offering an exceptional combination of space, technology, energy efficiency, and resort-style outdoor living, this is a home designed to be enjoyed inside and out. The waterfront setting is truly the centerpiece of the property. Step outside and enjoy your own private escape with beautiful water views, a new bulkhead, and direct access to the waterfront right from your backyard. Whether you’re enjoying the day on the water, entertaining friends and family, or simply relaxing poolside overlooking the water, this property delivers the lifestyle waterfront buyers are looking for. The backyard feels like your own private resort, featuring a saltwater swimming pool with both heater and chiller, allowing you to enjoy the perfect water temperature throughout the season. The expansive property provides plenty of room for entertaining, recreation, and relaxing, while professionally designed landscape lighting transforms the grounds in the evening. The home is equipped with a Tesla solar energy system and Tesla battery backups, helping keep electric bills remarkably low while also providing backup power during outages. A dedicated water-pressure system maintains strong water pressure throughout the home, while central air conditioning, central heating, and an on-demand hot water system provide year-round comfort. Inside, you’ll find hardwood floors throughout, spacious living and entertaining areas, custom closets, a butler’s pantry, separate walk-in pantry, and thoughtful upgrades throughout. Built-in speakers in every room allow you to enjoy music throughout the house, while the living room features a dedicated surround-sound system for an incredible entertainment experience.

Listing snapshot

Days on site
48 days
Listed on MLS
Aug 27, 2026
Full baths
3
Half baths
1
Annual property tax (MLS)
$22,000
Tax year
2025
Area source (MLS)
Other
Listing brokerage
Magic Of Great Neck Realty Inc
MLS ID
KEY1044155
Last updated
Oct 7, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
2017
Garage
Yes
Garage spaces
2
Parking
Other
Water source
Public
Sewer
Public Sewer
Utilities
See Remarks

Interior features

Heating
ENERGY STAR Qualified Equipment, Forced Air
Cooling
Central Air, Zoned
Interior
First Floor Bedroom, First Floor Full Bath, Bidet, Breakfast Bar, Built-in Features, Cathedral Ceiling(s), Ceiling Fan(s), Chandelier, Crown Molding, Double Vanity, Entrance Foyer, Formal Dining, Granite Counters, High Ceilings, His and Hers Closets, In-Law Floorplan, Kitchen Island, Marble Counters, Open Floorplan, Open Kitchen, Pantry, Recessed Lighting, Smart Thermostat, Soaking Tub, Sound System, Stone Counters, Storage, Tray Ceiling(s), Walk-In Closet(s), Washer/Dryer Hookup, Wet Bar, Wired for Sound
Appliances
Cooktop, Dishwasher, Dryer, Exhaust Fan, Gas Cooktop, Gas Oven, Gas Range, Microwave, Oven, Refrigerator, Stainless Steel Appliance(s), Tankless Water Heater, Washer

Exterior features

Architectural style
Colonial
Construction materials
Energy Star, Stone, Vinyl Siding
Private pool
Yes

Schools (MLS)

Elementary school
Birch Lane Elementary School
Elementary school district
Massapequa
Middle school
Berner Middle School
Middle school district
Massapequa
High school
Massapequa High School
High school district
Massapequa

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. MLS status changed
  3. First seen on this site

Location

Oyster Bay · Nassau County, NY 11758Show interactive map
40 Highwater Avenue

Oyster Bay · Nassau County, NY 11758

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Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.