This home's estimate is 23.2% higher than the average sale price ($581K) of 6 comparable homes.
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142 Riverside Ave, Mastic Beach, NY 11951
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About this home
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.
Redfin Estimate
Market trends in 11951, NY
Last updated September 2026
Buyer's Market
Seller's Market
Seller's market
- NEW 1 HR AGO$388,8882 beds1 bath700 sq ft109 Lakeview Dr, Mastic Beach, NY 11951Listing by Douglas Elliman Real Estate
- COMING SOON$449,0002 beds1 bath1,482 sq ft173 Diana Dr, Mastic Beach, NY 11951Listing by Century 21 Adams Real Estate
- $779,0003 beds2.5 baths1,356 sq ft22 Shore Dr, Mastic Beach, NY 11951Listing by Coldwell Banker M&D Good Life
- $425,0001 bed1 bath920 sq ft487 Mastic Rd, Mastic Beach, NY 11951Listing by Signature Premier Properties
- $429,0003 beds1 bath1,040 sq ft156 Orchid Dr, Mastic Beach, NY 11951Listing by BH&G R E Realty Connect
- $500,0002 beds2 baths1,302 sq ft21 Oceanview Dr, Mastic Beach, NY 11951Listing by BH&G R E Realty Connect
- $679,0004 beds3 baths2,715 sq ft10 Phyllis Dr, Mastic Beach, NY 11951Listing by Premium Group Realty Corp
- $379,0002 beds1 bath638 sq ft195 Mckinley Dr, Mastic Beach, NY 11951Listing by Coldwell Banker M&D Good Life
- COMING SOON
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Est. $3,371 per month, based on comparable rentals
Sale and tax history for 142 Riverside Ave
- Sale History
- Tax History
$340/sq ft
$326/sq ft
$49/sq ft
Public record
Property details
Parking
- Parking Information
- Carport YN: No
- Parking Features: Driveway, Garage, Garage Door Opener, Off Street
- Garage Information
- Garage Spaces: 2
- Has Garage
Interior
- Fireplace Information
- Has Fireplace
- Heating & Cooling
- Cooling: Central Air
- Heating: Baseboard, Oil
- Interior Features
- Interior Features: Entrance Foyer,His and Hers Closets,Washer/Dryer Hookup
- Appliances: Dishwasher, Dryer, Microwave, Range, Refrigerator, Stainless Steel Appliance(s), Gas Water Heater
- Flooring: Vinyl
- Levels: Bi-Level
- Patio And Porch Features: Deck
- Room Information
- Basement YN: Yes
- Attic: Crawl
- Rooms Total: 9
- Basement: Finished
- Bathroom Information
- Bathrooms Full: 3
Exterior
- Exterior Features
- Construction Materials: Frame
- Fencing: Back Yard, Fenced
- Waterfront YN: No
- Pool Information
- Has Private Pool
- Pool Features: Above Ground
- Lot Information
- Lot Features: Back Yard, Landscaped, Private, Sprinklers In Front, Sprinklers In Rear
- Property Information
- Living Area Source: Public Records
- Living Area (Sq. Ft.): 2150.00
- Property Sub Type: Single Family Residence
Financial
- Tax Information
- Tax Year: 2026
- Tax Source: Municipality
- Tax Annual Amount: $11,058
- Financial Information
- Buyer Financing: Other
Utilities
- Utility Information
- Sewer: Cesspool
- Utilities: Cable Connected
Location
- School Information
- Elementary School: Tangier Smith Elementary School
- Elementary School District: William Floyd
- Middle Or Junior School: William Paca Middle School
- Middle Or Junior School District: William Floyd
- High School: William Floyd High School
- High School District: William Floyd
- Location Information
- County Or Parish: Suffolk County
Public facts
- Beds: —
- Baths: —
- Sq. Ft.: 1,518
- Stories: —
- Lot Size: 0.55 acres
- Style: Single Family Residential
- Year Built: 1974
- Year Renovated: —
- County: Suffolk County
- APN: 0200939000900017001
Around this home
Schools
Public K-5 • Assigned • 0.9mi
Public 6-8 • Assigned • 0.9mi
Public 9-12 • Assigned • 0.5mi
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
0.31% chance of being in a wildfire in next 30 years
7 days above 91° expected this year, 19 days in 30 years
80% chance of strong winds in next 30 years
3 unhealthy days expected this year, 5 days in 30 years
Sun exposure
Very good sunlight
SunscoreThere appears to be minimal shading by surrounding buildings, terrain, and vegetation.
Nearby similar homes
New listings for sale in 11951
Home values near 142 Riverside Ave
| Address | Redfin Estimate |
|---|---|
- Beds | - Baths | 1568 Sq. Ft. | $531,429 |
3 Beds | 2 Baths | 1500 Sq. Ft. | $484,230 |
| Address | Redfin Estimate |
|---|---|
3 Beds | 2 Baths | - Sq. Ft. | $493,234 |
3 Beds | 3 Baths | - Sq. Ft. | $657,504 |
| Address | Redfin Estimate |
|---|---|
- Beds | - Baths | 1062 Sq. Ft. | $484,903 |
- Beds | - Baths | 2770 Sq. Ft. | $715,719 |
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