#814313, Listing Office: Aliano Real Estate
129 Harbor Beach Rd Mount Sinai, NY 11766
Property details
About 129 Harbor Beach Rd
Experience the ultimate coastal lifestyle in this stunning, renovated (2021) Hampton-style beach home on Harbor Beach Road, Mt. Sinai. Set on over an acre, this 5-bedroom retreat offers breathtaking sunsets and deeded access to a private Long Island Sound beach. Perfect for year-round living or as an investment with rental potential. Primary suite with panoramic LI Sound views, 2 luxurious bathrooms with radiant heated floors. A chef's dream kitchen with Viking appliances. Multiple decks for entertaining or unwinding. Fireplaces and fire pits for cozy gatherings. A whole-house generator for peace of mind year-round. Only 90 minutes from NYC and minutes from Cedar Beach and Mt. Sinai Yacht Club, this beach house embodies casual elegance with natural landscaping, proximity to the waterfront, and easy access to Mt. Sinai Harbor. Don't miss this opportunity to own a unique waterfront property ideal for relaxation and income potential.
Highlights
Virtual tour
Summary
- MLS Number: L3591701
- MLS Name: ONEKEY2
- Office Name: Compass Greater NY LLC
- Office Phone: (516) 517-4866
Listings courtesy of OneKey MLS as distributed by MLS GRID.
All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS.The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program of the OneKey™ MLS. Real Estate listings held by brokerage firms other than this broker are marked with the Broker Reciprocity logo and detailed information about them includes the name of the listing brokers. This information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
The source of the displayed data is either the property owner or public record provided by non-governmental third parties. It is believed to be reliable but not guaranteed.
Information Copyright 2025, OneKey™ MLS. All Rights Reserved.
Data displayed may be a portion of, and not a complete set of all listings published in the MLS.
This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Last updated on: 2/22/2025, 6:11:49 PM Eastern. If you have any questions regarding the accuracy of this data, please contact us at help@rockethomes.com.
Get an agent. Get a mortgage. Save big.¹

$1,888,000
129 Harbor Beach Rd
$10,000
closing credit¹
Sell your home with Rocket and save even more!
Seller rebate
0.5% sale price²
Price information
Property sales
Date | Event | Price |
---|---|---|
Sep 05, 2012 | Home Sold | $750,000 |
Tax history
Year | Assessment | Property Tax |
---|---|---|
2023 | $4,800 | $- |
2022 | $4,800 | $- |
2021 | $4,800 | $16,077 |
2020 | $4,800 | $16,077 |
2019 | $4,800 | $17,050 |
2018 | $4,800 | $16,596 |
History based on county public records data.
Nearby schools
4
Sound Beach School
Public District 3-5
1.6 mi
•197 N Country Rd
7
Mount Sinai Elementary School
Public District KG-4
1.9 mi
•118 N Country Rd
5
Port Jefferson Elementary School
Public District KG-6
2.3 mi
•500 Scraggy Hill Rd
School ratings are a score out of 10, where 10 is the highest and 1 is the lowest.
Neighborhood
The neighbors living near this home have an average income of $101,736. Most Mount Sinai, NY residents have annual incomes between $35k-100k. Most families are married, no kids. Most residents in this area have post secondary degree education.
Similar homes for sale
Frequently asked questions
About 129 Harbor Beach Rd
This home is located at 129 Harbor Beach Rd in Mount Sinai, NY and zip code 11764 in the Town of Brookhaven neighborhood. Features: 5 bedrooms, 2 bathrooms. It has been listed on Rocket Homes since November 18, 2024 and is currently priced at $1,888,000.
Over 187 listings were sold over their listed price in January 2025 in Mount Sinai, NY. In the same period over 92 listings were sold below the listed price and 35 listings were sold for the listed price. The inventory of homes for sale in Mount Sinai, NY between December and January 2025 decreased by 14%. Listings spent 52 days on the market in January 2025, and had a median list price of $550,012 during the same period.