159 Riverside Ave, Mastic Beach, NY 11951

Off Market Dec 2024 for $360K

$505,221

Est. refi paymentEst. refi $2,960/mo

•

—

sq ft

159 Riverside Ave, Mastic Beach, NY 11951

About this home

Adorable home with large living areas, needs some cosmetic touches to make this home your own, room for extended family with cottage in the back with separate living area. Partially finished basement with extra rooms. Plenty of parking, Great location close to restaurants and shops. Peaceful and Abundant land in backyard that goes down to a creek . Wont last at this price! LOW TAXES!! Why rent when you can own for less!, Additional information: Separate Hotwater Heater:y

Single-familyProperty Type

1947Year Built

0.33 acresLot Size

Listing by Rebecca Bumb-Duffy • Keller Williams Realty Elite

Listing by Matthew Levin • Keller Williams Realty Elite

Contact: 516-795-6900

Bought with Agnieszka Kleczek • Signature Premier Properties

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #L3575019

Redfin Estimate

$505,221

$145K since sold in December 2024$6,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.1% higher than the average sale price ($451K) of 6 comparable homes.

SOLD FEB 1, 2026
$355,000
A
3 beds2 baths1,152 sq ft
77 Poospatuck Ln, Mastic, NY 11950
Listing by RE/MAX Integrity Leaders
SOLD AUG 3, 2026
$394,000
B
3 beds1 bath1,326 sq ft
88 Eleanor Ave, Mastic, NY 11950
Listing by EXP Realty
SOLD AUG 3, 2026
$440,000
C
3 beds2 baths1,296 sq ft
86 Eleanor Ave, Mastic, NY 11950
Listing by EXP Realty
SOLD DEC 3, 2025
$500,000
D
3 beds2 baths1,200 sq ft
108 Riviera Dr, Mastic, NY 11950
Listing by Realty Connect USA L I Inc
SOLD JUL 8, 2026
$550,000
E
3 beds2 baths896 sq ft
160 Hounslow Rd, Shirley, NY 11967
Listing by OverSouth LLC
SOLD APR 23, 2026
$465,000
F
3 beds1 bath1,161 sq ft
137 Riverside Ave, Mastic Beach, NY 11951
Listing by Signature Homes of New York

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Earn from this home

Sell

$195,137

Est. take-home

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Refinance

Est. cash available

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Rent

$2,442/mo

Redfin rental estimate

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Market trends in 11951, NY

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

102.4%

+0.1% MoM

Median sale price

$465K

$5K MoM

Avg. days on market

34d

8 days MoM

Recently sold homes

9 MoM

New listings for sale

NEW 30 HRS AGO
$584,900
3 beds2 baths1,822 sq ft
73 Spar Dr, Mastic Beach, NY 11951
Listing by Listing Pro Realty Services
NEW 1 DAY AGO
$425,000
3 beds2 baths1,350 sq ft
11 Seaford Rd, Mastic Beach, NY 11951
Listing by Signature Premier Properties
$429,000
3 beds2 baths1,539 sq ft
76 Wilson Ave, Mastic Beach, NY 11951
Listing by Signature Premier Properties
OPEN SUN, 12PM TO 2PM
$439,000
3 beds2 baths1,350 sq ft
126 Dahlia Dr, Mastic Beach, NY 11951
Listing by Island Advantage Realty LLC
$150,000
2 beds1 bath600 sq ft
167 Cranberry Dr, Mastic Beach, NY 11951
Listing by RPB Realty
$499,000
3 beds1.5 baths797 sq ft
10 Barclay Rd, Mastic Beach, NY 11951
Listing by Signature Premier Properties
$299,000
2 beds1 bath768 sq ft
110 Daisy Dr, Mastic Beach, NY 11951
Listing by Coldwell Banker American Homes
$549,990
2 beds2 baths1,277 sq ft
144 Cranberry Dr, Mastic Beach, NY 11951
Listing by Signature Premier Properties
$489,000
3 beds1 bath1,052 sq ft
181 Cypress Dr, Mastic Beach, NY 11951
Listing by Barons Real Estate Associates
$489,000
2 beds1 bath1,170 sq ft
277 Mckinley Dr, Mastic Beach, NY 11951
Listing by Coldwell Banker M&D Good Life
See all

Provided by Redfin

Sale history for 159 Riverside Ave

Year

Property tax

Land + Additions

Assessment*

2026

$6,486

$150 + $1,350

$1,500

2025

$6,486 (+1.3%)

$150 + $1,350

$1,500

2024

$6,402 (+4.2%)

$150 + $1,350

$1,500

2023

$6,143 (−13.5%)

$150 + $1,350

$1,500

2022

$7,099

$150 + $1,350

$1,500

2021

$7,099 (+0.5%)

$150 + $1,350

$1,500

2020

$7,062 (+1.5%)

$150 + $1,350

$1,500

2019

$6,957 (+2.1%)

$150 + $1,350

$1,500

2018

$6,813 (+1.8%)

$150 + $1,350

$1,500

2017

$6,693 (+9.7%)

$150 + $1,350

$1,500

2016

$6,100

$150 + $1,350

$1,500

Tax history for 159 Riverside Ave

Year

Property tax

Land + Additions

Assessment*

2026

$6,486

$150 + $1,350

$1,500

2025

$6,486 (+1.3%)

$150 + $1,350

$1,500

2024

$6,402 (+4.2%)

$150 + $1,350

$1,500

2023

$6,143 (−13.5%)

$150 + $1,350

$1,500

2022

$7,099

$150 + $1,350

$1,500

2021

$7,099 (+0.5%)

$150 + $1,350

$1,500

2020

$7,062 (+1.5%)

$150 + $1,350

$1,500

2019

$6,957 (+2.1%)

$150 + $1,350

$1,500

2018

$6,813 (+1.8%)

$150 + $1,350

$1,500

2017

$6,693 (+9.7%)

$150 + $1,350

$1,500

2016

$6,100

$150 + $1,350

$1,500

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

—

Baths

—

Stories

—

Lot width

—

Lot depth

—

Lot size

0.33 Acres

Year renovated

—

Sq. Ft.

1,222

Year built

1947

Style

Single Family Residential

County

Suffolk County

APN

0200939000700009000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 31, 2026.

Property details

Parking

Parking Information
Parking Features: Driveway

Interior

Fireplace Information
Fireplaces Total: 1

Heating & Cooling
Cooling: None
Heating: Baseboard, Oil

Interior Features
Interior Features: Eat-in Kitchen,Master Downstairs,First Floor Bedroom
Appliances: Dryer, Microwave, Refrigerator, Oil Water Heater
Levels: One

Room Information
Room Description: front room, master, bedroom, bath , kitchen
Basement YN: No
Attic: Partial
Rooms Total: 9
Basement: Full, Partially Finished, Walk-Out Access
Additional Rooms: Library/Den

Bathroom Information
Bathrooms Full: 2

Exterior

Exterior Features
Construction Materials: Vinyl Siding
Fencing: Back Yard

Lot Information
Additional Parcels YN: No
Lot Features: Near Public Transit, Near Shops

Property Information
Property Sub Type: Single Family Residence

Financial

Tax Information
Tax Section: 939
Tax Annual Amount: $6,142.99

Financial Information
Buyer Financing: FHA

Utilities

Utility Information
Sewer: Cesspool

Location

School Information
Elementary School: Nathaniel Woodhull Elementary School
Middle Or Junior School: William Floyd Middle School
High School: William Floyd High School
High School District: William Floyd

Location Information
Hamlet: Mastic Beach
Directions: Montauk highway to south on mastic rd, make left on riverside rd
County Or Parish: Suffolk County

Public facts

Beds: —
Baths: —
Sq. Ft.: 1,222
Stories: —
Lot Size: 0.33 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: —
County: Suffolk County
APN: 0200939000700009000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Tangier Smith Elementary School

Public K-5 • Assigned • 0.8mi

8/10

William Paca Middle School

Public 6-8 • Assigned • 0.9mi

5/10

William Floyd High School

Public 9-12 • Assigned • 0.5mi

3/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.31% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 91° expected this year, 19 days in 30 years

8/10 Wind Factor

80% chance of strong winds in next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 5 days in 30 years

Provided by First Street

Historical weather

Mastic Beach, NY • 11951

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.9 hours in June and 4.6 hours in December, which is comparable to the U.S. average for solar exposure.

8.9 hrs

4.6 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$480,000 – $582,000

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Nearby similar homes

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New listings for sale in 11951

NEW 30 HRS AGO

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Listing by Listing Pro Realty Services

NEW 1 DAY AGO

$425,000

3 beds2 baths1,350 sq ft

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Listing by Signature Premier Properties

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Listing by Signature Premier Properties

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$439,000

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Listing by Island Advantage Realty LLC

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Listing by RPB Realty

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Listing by Signature Premier Properties

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110 Daisy Dr, Mastic Beach, NY 11951

Listing by Coldwell Banker American Homes

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Listing by Signature Premier Properties

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Home values near 159 Riverside Ave

Data from public records.

Address	Redfin Estimate
171 Riverside Ave, Mastic Beach, NY 4 Beds \| 3 Baths \| 1988 Sq. Ft.	$658,577
157 Riverside Ave, Mastic Beach, NY - Beds \| - Baths \| 1062 Sq. Ft.	$489,642

Address	Redfin Estimate
165 Riverside Ave, Mastic Beach, NY - Beds \| - Baths \| 1856 Sq. Ft.	$520,296
155 Riverside Ave, Mastic Beach, NY 3 Beds \| 2 Baths \| 1500 Sq. Ft.	$460,350

Address	Redfin Estimate
161 Riverside Ave, Mastic Beach, NY - Beds \| - Baths \| 1568 Sq. Ft.	$529,536
151 Riverside Ave, Mastic Beach, NY 3 Beds \| 3 Baths \| - Sq. Ft.	$667,771

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2024. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 11951, NY

Sale history for 159 Riverside Ave

Tax history for 159 Riverside Ave

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 11951

Home values near 159 Riverside Ave

More real estate resources