Suffolk County  »  11951  »  Riverside Ave  »  23 Riverside Ave

23 Riverside Avenue, Mastic Beach, NY 11951 - Property report

Also known as: 23 Riverside Ave

Property image for 23 Riverside Avenue, Mastic Beach, NY 11951
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Property type

One Family Year-Round Residence (210)

Year built

1990

Acreage

0.25

Sale price

$582,500

General information

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Address
Primary address
23 Riverside Avenue
ZIP code
11951
County
Suffolk
Village (SWIS code)
472289
Parcel ID
940-5-21

Owner

Find out who owns 23 Riverside Avenue, Mastic Beach, NY 11951. Uncover corporate and individual owners with a free account.

Sales
Sale date
10/02/2024
Sale price
$582,500
Arm's length
Tax
Tax year
2025-2026
Current property tax
$7,953
Zoning & Use
Zoning
Waterfront District (WD)
Building
Property type
One Family Year-Round Residence (210)
Year built
1990
Lot
Acreage
0.25

Area overview

Walk score
12 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
27 /100.  Somewhat Bikeable
School district
472232

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 23 Riverside Avenue, Mastic Beach, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 23 Riverside Avenue, Mastic Beach, NY 11951

Sale date Sale price Buyer name Seller name
10/02/2024 $582,500 XXXXXX XXXXXXXX; XXXXXXXXX XXXX XXXXXX XXXXXX; XXXXXXX XXXXXX

*Most recent sale on record for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
11/14/2024 - R
10/02/2024 - D		 Deed XXXXXX XXXXXX XXXXXXXXX XXXX

*Most recent recorded document on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 23 Riverside Avenue, Mastic Beach, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$7,953
Recent tax assessments
Market value
$405,660
Assessed value
$2,150

More about Suffolk County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2024-2025 $405,660 $2,150 363.67 $7,819 +2.08%
2023-2024 $398,148 $2,150 356.252 $7,659 -12.23%
2022-2023 $346,775 $2,150 405.87 $8,726 -3.28%
2021-2022 $290,540 $2,150 419.634 $9,022 -3.50%
2020-2021 $292,208 $2,250 415.528 $9,349 +2.62%
2019-2020 $261,628 $2,250 404.929 $9,111 -9.46%
2017-2018 $294,444 $2,650 379.733 $10,063 -0.25%
2016-2017 $291,209 $2,650 380.67 $10,088 +2.40%
2015-2016 $278,947 $2,650 371.745 $9,851 +2.63%
2014-2015 $278,947 $2,650 362.216 $9,599 +2.26%
Permits

Permit information for 23 Riverside Avenue, Mastic Beach, NY

No recently recorded permits for this property.

Neighborhood

Risk

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FEMA flood zones

FEMA flood zones
AE

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 23 Riverside Avenue, Mastic Beach, NY 11951 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Nathaniel Woodhull Elementary School 6 Public K-5 703 1.22
John S Hobart Elementary School 3 Public K-5 798 1.22
Moriches Elementary School 5 Public K-5 822 1.31
Tangier Smith Elementary School 5 Public K-5 755 1.33
William Floyd Elementary School 4 Public K-5 742 1.40
William Floyd Learning Center NR Public K-5 68 1.40
Clayton Huey Elementary School 5 Public PK, K-5 598 2.00
Clayton Huey Elementary School 5 Public PK, K-5 598 2.00
Our Lady Queen Of Apostles Reg Catholic School NR Private PK-8 153 2.48
Our Lady Queen Of Apostles Reg Catholic School NR Private PK-8 153 2.48
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
William Paca Middle School 4 Public 6-8 1,009 1.24
William Floyd Middle School 3 Public 6-8 1,053 1.77
Center Moriches Middle School 3 Public 6-8 325 1.89
Our Lady Queen Of Apostles Reg Catholic School NR Private PK-8 153 2.48
Leonard E Burket Christian School NR Private PK-12 77 3.03
Eastport South Manor Junior Senior High School 5 Public 7-12 1,530 3.21
East Moriches School 6 Public 5-8 309 3.78
Bellport Middle School 4 Public 6-8 838 6.05
Victory Christian Academy NR Private PK-12 71 6.88
Longwood Junior High School 3 Public 7-8 1,388 6.99
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
William Floyd High School 5 Public 9-12 3,013 1.08
Center Moriches High School 8 Public 9-12 556 1.89
Leonard E Burket Christian School NR Private PK-12 77 3.03
Eastport South Manor Junior Senior High School 5 Public 7-12 1,530 3.21
Bellport Senior High School 5 Public 9-12 1,392 4.84
Victory Christian Academy NR Private PK-12 71 6.88
Longwood High School 7 Public 9-12 2,977 7.36
Aunt T's Home Day Care NR Private PK, K-12 0 8.28
Patchogue Medford High School 5 Public 9-12 2,443 8.38
Eastern Suffolk Boces NR Public K-12 1,721 8.64

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 23 Riverside Avenue, Mastic Beach, NY

21 Riverside Ave, Mastic Beach 37 Riverside Ave, Mastic Beach 11 Riverside Ave, Mastic Beach 33 Riverside Ave, Mastic Beach 5 Riverside Ave, Mastic Beach 25 Riverside Ave, Mastic Beach 27 Riverside Ave, Mastic Beach 51 Riverside Ave, Mastic Beach 17 Riverside Ave, Mastic Beach 15 Riverside Ave, Mastic Beach 13 Riverside Ave, Mastic Beach 65 Riverside Ave, Mastic Beach 75 Riverside Ave, Mastic Beach 63 Riverside Ave, Mastic Beach 41 Riverside Ave, Mastic Beach 43 Riverside Ave, Mastic Beach 69 Riverside Ave, Mastic Beach 77 Riverside Ave, Mastic Beach 35 Riverside Ave, Mastic Beach 45 Riverside Ave, Mastic Beach

Nearby ZIP codes for 23 Riverside Avenue, Mastic Beach, NY

11713, Suffolk County, NY 11719, Suffolk County, NY 11763, Suffolk County, NY 11772, Suffolk County, NY 11933, Suffolk County, NY 11934, Suffolk County, NY 11940, Suffolk County, NY 11941, Suffolk County, NY 11949, Suffolk County, NY 11950, Suffolk County, NY 11953, Suffolk County, NY 11955, Suffolk County, NY 11960, Suffolk County, NY 11961, Suffolk County, NY 11967, Suffolk County, NY 11972, Suffolk County, NY 11977, Suffolk County, NY 11978, Suffolk County, NY 11980, Suffolk County, NY

Frequently asked questions

What is the year built for 23 Riverside Avenue, Mastic Beach, NY 11951?

The development at 23 Riverside Avenue, Mastic Beach, NY 11951 was built in 1990.

When was 23 Riverside Avenue, Mastic Beach, NY 11951 last sold and what was the sale price?

23 Riverside Avenue, Mastic Beach, NY 11951 was last sold on 10/02/2024 for $582,500.

What is the assessed value of 23 Riverside Avenue, Mastic Beach, NY 11951?

23 Riverside Avenue, Mastic Beach, NY 11951 is currently assessed at $2,150.

What are the property taxes for 23 Riverside Avenue, Mastic Beach, NY 11951?

The property taxes for 23 Riverside Avenue, Mastic Beach, NY 11951 total $7,953.

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