65 Riverside Ave, Mastic Beach, NY 11951

Off Market Jul 2024 for $775K

$855,080

•

2,800

sq ft

65 Riverside Ave, Mastic Beach, NY 11951

About this home

This Amazing Custom Built Colonial is Settled on 1.3 Acres. Beautiful Park Like Grounds with Tons of Privacy. Boat Dock on Open Creek that Leads to the Great South Bay. Features a Magnificent Open Floor Plan with Spacious Foyer. Massive Eat in Kitchen. Very Large Dining Rm. The Great Room Has High Ceilings with Floor to Ceiling Stone Fireplace. Upstairs Balcony Overlooks the Downstairs. Office/ 4th Bedroom on the Main Floor. Full Bathroom also on the Main Floor. Primary Bedroom has a Full Bath and a Spacious Walk in Closet. 2 Additional Bedrooms and Full Bath on 2nd Floor along with Laundry Room. Full Basement. 2 Car Garage with Heat and AC. Beautiful Hard Wood Floors. Front Covered Porch. List Goes On !!!, Additional information: Appearance:Diamond,Separate Hotwater Heater:Y

Single-familyProperty Type

2001Year Built

1.32 acresLot Size

$305Est. Price/Sq.Ft.

Listing by Gina Walter • Century 21 Cor Ace Realty Inc

Listing by Tinamarie Hughes • Century 21 Cor Ace Realty Inc

Bought with Marlene Sicoli • Coldwell Banker American Homes

Redfin checked: 2 minutes ago

•Source:OneKey® MLS as Distributed by MLS Grid #L3545212

Redfin Estimate

$855,080

$80K since sold in July 2024$19K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 22.7% higher than the average sale price ($697K) of 6 comparable homes.

SOLD JUL 13, 2026
$465,000
A
4 beds2.5 baths2,214 sq ft
96 Church Dr, Mastic Beach, NY 11951
Listing by REALHome Services & Solutions
SOLD AUG 20, 2026
$865,000
B
4 beds3.5 baths2,740 sq ft
15 Whitetail Ct, Center Moriches, NY 11934
Listing by Brookhampton Realty
SOLD APR 29, 2026
$515,000
C
4 beds2.5 baths1,984 sq ft
24 Lonscreek Pl, Mastic Beach, NY 11951
Listing by Coldwell Banker M&D Good Life
SOLD JUL 20, 2026
$620,000
D
4 beds2 baths1,764 sq ft
191 Hawthorne St, Mastic, NY 11950
Listing by Daniel Gale Sothebys Intl Rlty
SOLD MAR 24, 2026
$1,070,000
E
4 beds2.5 baths2,891 sq ft
84 W James Hawkins Rd, Moriches, NY 11955
Listing by Coldwell Banker American Homes
SOLD MAY 28, 2026
$645,000
F
3 beds2 baths1,726 sq ft
42 Biltmore Dr, Mastic Beach, NY 11951
Listing by Power Team Realty Corp

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Earn from this home

Sell

$208,914

Est. take-home

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Rent

$2,703/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 23 HRS AGO
$595,000
4 beds1 bath1,652 sq ft
9 Babylon Rd, Mastic Beach, NY 11951
Listing by Your Team D&G Realty Ltd
COMING SOON
$449,000
4 beds2 baths1,176 sq ft
239 Cypress Dr, Mastic Beach, NY 11951
Listing by Douglas Elliman Real Estate
$584,900
3 beds2 baths1,822 sq ft
73 Spar Dr, Mastic Beach, NY 11951
Listing by Listing Pro Realty Services
$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
$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
OPEN SUN, 12PM TO 1:30PM
$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
See all

Provided by Redfin

Sale history for 65 Riverside Ave

Date

Event

Price

Public Records

Aug 27, 2024

Sold

$775,000

$277/sq ft

OneKey® MLS as Distributed by MLS Grid #L3545212

Jul 12, 2024

Sold

$775,000

$277/sq ft

May 28, 2024

Pending

—

Mar 19, 2024

Listed

$775,000

$277/sq ft

OneKey® MLS as Distributed by MLS Grid #3538804

Apr 18, 2024

Listing Removed

—

Mar 19, 2024

Listed

$799,000

$285/sq ft

Public Records

Jan 16, 2020

Sold

$380,000

$136/sq ft

Public Records

Jun 22, 2000

Sold

$145,000

$52/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$9,534

$450 + $1,800

$2,250

2025

$9,534 (+1.4%)

$450 + $1,800

$2,250

2024

$9,402 (+4.2%)

$450 + $1,800

$2,250

2023

$9,020 (+17.8%)

$450 + $1,800

$2,250

2022

$7,660

$450 + $1,800

$2,250

2021

$7,660 (+0.5%)

$450 + $1,175

$1,625

2020

$7,620 (+23.1%)

$450 + $1,175

$1,625

2019

$6,189 (+2.7%)

$450 + $1,175

$1,625

2018

$6,024 (+1.8%)

$450 + $1,175

$1,625

2017

$5,920 (+11.0%)

$450 + $1,175

$1,625

2016

$5,332

$450 + $1,175

$1,625

Tax history for 65 Riverside Ave

Year

Property tax

Land + Additions

Assessment*

2026

$9,534

$450 + $1,800

$2,250

2025

$9,534 (+1.4%)

$450 + $1,800

$2,250

2024

$9,402 (+4.2%)

$450 + $1,800

$2,250

2023

$9,020 (+17.8%)

$450 + $1,800

$2,250

2022

$7,660

$450 + $1,800

$2,250

2021

$7,660 (+0.5%)

$450 + $1,175

$1,625

2020

$7,620 (+23.1%)

$450 + $1,175

$1,625

2019

$6,189 (+2.7%)

$450 + $1,175

$1,625

2018

$6,024 (+1.8%)

$450 + $1,175

$1,625

2017

$5,920 (+11.0%)

$450 + $1,175

$1,625

2016

$5,332

$450 + $1,175

$1,625

*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

0.99 Acres

Year renovated

—

Sq. Ft.

957

Year built

1945

Style

Single Family Residential

County

Suffolk County

APN

0200940000500006000

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 31, 2026.

Property details

Parking

Parking Information
Parking Features: Attached, Driveway, Private

Interior

Fireplace Information
Has Fireplace
Fireplaces Total: 1

Heating & Cooling
Cooling: Central Air
Heating: Forced Air, Oil

Interior Features
Interior Features: Ceiling Fan(s),Primary Bathroom
Window Features: Screens
Appliances: Dishwasher, Dryer, Refrigerator, Washer, Oil Water Heater
Flooring: Hardwood
Levels: Two
Patio And Porch Features: Patio, Porch

Room Information
Room Description: Foyer, Great Room, Formal Dining Rm, Eat in Kitchen, 4th Bedroom/Office, Full Bath||Primary Bedroom Suite w/ Full Bath & Walk in Closet, 2 Additional Bedrooms, Full Bath, Laundry Rm||Gym, Storage, Utility
Basement YN: No
Attic: Full,Unfinished
Rooms Total: 9
Basement: Full

Bathroom Information
Bathrooms Full: 3

Exterior

Exterior Features
Exterior Features: Mailbox
Construction Materials: Frame, Vinyl Siding

Lot Information
Additional Parcels YN: No
Lot Features: Level, Part Wooded, Sloped, Sprinklers In Front, Sprinklers In Rear
Zoning: Res

Property Information
Property Sub Type: Single Family Residence

Financial

Tax Information
Tax Section: 940
Tax Annual Amount: $11,688

Utilities

Utility Information
Sewer: Cesspool

Location

School Information
Middle Or Junior School: William Paca Middle School
High School: William Floyd High School
High School District: William Floyd

Location Information
Hamlet: Mastic Beach
Directions: Mastic Rd to Riverside
County Or Parish: Suffolk County

Public facts

Beds: —
Baths: —
Sq. Ft.: 957
Stories: —
Lot Size: 0.99 acres
Style: Single Family Residential
Year Built: 1945
Year Renovated: —
County: Suffolk County
APN: 0200940000500006000

Home facts updated by county records on Aug 31, 2026

Around this home

Schools

Tangier Smith Elementary School

Public K-5 • Assigned • 1.2mi

8/10

William Paca Middle School

Public 6-8 • Assigned • 1.2mi

5/10

William Floyd High School

Public 9-12 • Assigned • 0.9mi

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

$813,000 – $984,000

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Home values near 65 Riverside Ave

Data from public records.

Address	Redfin Estimate
77 Riverside Avenue, Mastic Beach, NY - Beds \| - Baths \| 1015 Sq. Ft.	$524,558
53 Riverside Avenue, Mastic Beach, NY 4 Beds \| 1.5 Baths \| - Sq. Ft.	$568,120

Address	Redfin Estimate
69 Riverside Avenue, Mastic Beach, NY 3 Beds \| 1.5 Baths \| 1100 Sq. Ft.	$567,080
51 Riverside Avenue, Mastic Beach, NY - Beds \| - Baths \| 1412 Sq. Ft.	$573,866

Address	Redfin Estimate
59 Riverside Avenue, Mastic Beach, NY 3 Beds \| 2 Baths \| 2224 Sq. Ft.	$588,107
76 Riverside Avenue, Mastic Beach, NY 3 Beds \| 1 Baths \| - Sq. Ft.	$460,796

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 65 Riverside Ave

Tax history for 65 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 65 Riverside Ave

More real estate resources