142 Riverside Avenue Mastic Beach, NY $ 699,999
142 Riverside Avenue
$ 699,999
Recently Listed
Open House 6/6 1pm - 3pm
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142 Riverside Avenue

Mastic Beach, NY, 11951
$ 699,999
Bedrooms4 Baths3.0 Sq 2,150

Monthly Estimate*

$ 4,310

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Single Family Home for sale in Mastic Beach, NY

for $699,999 with 4 bedrooms and 3 full baths. This 2,150 square foot home was built in 1974 on a lot size of 0.55.

Discover classic Colonial elegance combined with comfortable, modern living in this spacious 4-bedroom, 3-bath 1-attached garage and 1- stand free garage home with a full basement set on more than a half-acre of beautifully landscaped grounds. Inside, enjoy bright, well-proportioned rooms filled with natural light and timeless architectural details. The layout flows easily from formal to casual spaces, making everyday living and hosting effortless. Three full baths add convenience and comfort. Outside is a true private retreat: a resort-style backyard with mature plantings, manicured lawns, and multiple areas for dining, relaxing, and play. Whether you envision summer pool parties, quiet morning coffee, or large outdoor gatherings, this yard delivers. The generous lot also offers room for additions, a garden, or recreational amenities. Don’t miss this rare opportunity to own a home that blends traditional charm, adaptable living space, and an exceptional outdoor environment.

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Open House

6/6/2026 1:00 PM - 3:00 PM
6/7/2026 1:00 PM - 3:00 PM
142 Riverside Avenue Mastic Beach, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 699,999

Bedrooms

4

Full Bath

3

Property Type

Single Family

Taxes

$ 11,058

Style

Colonial

Lot Size

0.55

Year Built

1974

Town/City

Mastic Beach

County/Region

Suffolk

MLS | Web ID

1009138

Features
Interior
Interior Amenities Entrance Foyer His and Hers Closets Washer/Dryer Hookup
Basement Finished
Flooring Vinyl
Basement Features Finished
Basement (Y/N) Y
Fireplace Y/N Y
Half Baths 0
Total Bedrooms 4
Total Baths 3
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General
Sewer Cesspool
Heating Baseboard Oil
Cooling Central Air
Utilities Cable Connected
Appliances Dishwasher Dryer Microwave Range Refrigerator Stainless Steel Appliance(s) Gas Water Heater
Garage Spaces 2
Patio/Porch Features Deck
Architectural Style Colonial
Pool Features Above Ground
Construction Materials Frame
Year Built 1974
Property Subtype Single Family Residence
Tax Year 2026
Parcel Number 0200-939-00-09-00-017-001
County Suffolk County
Property Type Residential
HOA N
Garage Y/N Y
Total Rooms 9
Full Baths 3
High School William Floyd High School
City Brookhaven
Senior Community Y/N N
High School District William Floyd
Carport Y/N N
Elementary School Tangier Smith Elementary School
Property Attached Y/N N
Tax Annual Amount 11058
Middle/Junior High School William Paca Middle School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District William Floyd
Elementary School District William Floyd
Tax Assessed Value 2625
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Exterior
Fencing Back Yard Fenced
Parking Features Driveway Garage Garage Door Opener Off Street Driveway Garage Garage Door Opener Off Street
Water Source Public
Waterfront Y/N N
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Internal Only
Street Number 1 142
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* Excluded Features
List By
George Gabriel

Listing Agent

Coldwell Banker American Homes

Broker

631-588-9090

Contact

Affordability Calculator

$5,232
Per Month
82%
18%
0%
Monthly Principal & Interest
$4,310
Monthly Property Taxes
$922
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
4099696 Elementary School
4098662 Middle School
William Floyd High School High School
Pricing History
DatePricePrice ChangeDescription
6/4/2026$699,999 Listed Price

Map


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142 Riverside Avenue, Mastic Beach, NY, 11951 is a Single Family Home for sale at $699,999 with 2,150 sqft and a lot size of 0.55. 142 Riverside Avenue has 4 bedrooms, 3.0 baths, and was built in 1974. The property's zip code is 11951 which is in Mastic Beach, NY