25 Riverside Ave, Mastic Beach, NY 11951 Property Records

Suffolk County and Brookhaven Town property record for 25 Riverside Ave, Mastic Beach, NY 11951

Property Summary

Property TypeSingle Family Home
Lot Size0.5 acres (21,780 sqft)
OwnerIndividual Name on Record
Last Sale$210,000 (Sep 2017)
Tax Bill$13,150 (2024)
Deeds & MortgagesOct 2019 Sale
Sep 2017 Sale
+ 1 more
Flood ZoneZone X (minimal risk)
APN0200-940.00-05.00-020.000

Property Details

APN / Parcel Number

Primary APN0200-940.00-05.00-020.000
Alternative APNs
  • 472289 940.00-05-020.000
  • 0209003000100020000
  • 00004106200
  • 4106200

Exterior

Lot Area21,780 sqft (0.5 acres)
View / LotCanal Front

Location & Zoning

Account Number4106200
Street Address25 RIVERSIDE AVE
CityMASTIC BEACH
StateNY
Zip11951-1101
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal SubdivisionMAP MASTIC ACRES UNIT 7
Legal Block5
Legal Lot Number500
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group1
Census Block1003
Census Tract159512

Owner

Source: Suffolk County and Brookhaven Town records, as of August 11, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address25 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Oct 16, 2019Grant Deed, Transfer
NOT AVAILABLE
Sep 28, 2017Warranty Deed, Transfer
HAMLET TITLE AGENCY INC
Jun 13, 2017Trustee's Deed, Foreclosure
WEB TITLE

Assessor's Deed Record

Deed NamesName on Deed
Last SaleSep 28, 2017 · Amount on Record
Deed SaleSep 28, 2017 · Amount on Record
Prior SaleJun 13, 2017 · Amount on Record
Deed Book / Page12931 / 546
Prior Transfer DateMay 4, 2017
Prior Transfer Doc0129160389
Record UpdatedOct 29, 2026

October 2019: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSUFFOLK NY
Recording DateOct 16, 2019
Property Address25 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
Document Number0130320698
Book / Page013032 / 000698
Instrument DateOct 10, 2019
Transaction TypeTransfer
Record UpdatedNov 27, 2019
Title CompanyNOT AVAILABLE

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address25 RIVERSIDE AVE MASTIC BEACH NY 119511101, MASTIC BEACH, NY 11951-1101

September 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionSUFFOLK NY
Recording DateSep 28, 2017
Property Address25 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
Document Number0129310546
Book / Page012931 / 000546
Instrument DateAug 14, 2017
Transaction TypeTransfer
Record UpdatedNov 27, 2019
Title CompanyHAMLET TITLE AGENCY INC

Transaction

AmountAmount Recorded
Tax$840.00
Amount AccuracyConfirmed
Additional
  • Notice of Foreclosure Sale
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address2 RANCH DR SHIRLEY NY 119673526, SHIRLEY, NY 11967-3526

June 2017: Trustee's Deed, Foreclosure

Document TypeTrustee's Deed
JurisdictionSUFFOLK NY
Recording DateJun 13, 2017
Property Address25 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
Document Number0129160389
Book / Page012916 / 000389
Instrument DateMay 4, 2017
Transaction TypeForeclosure
Record UpdatedNov 27, 2019
Title CompanyWEB TITLE

Transaction

AmountAmount Recorded
Tax$980.00
Amount AccuracyConfirmed

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address14405 WALTERS RD HOUSTON TX 770141337, HOUSTON, TX 77014-1337

Tax Assessment & Valuation

Source: Suffolk County and Brookhaven Town assessment roll, as of August 11, 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionBrookhaven Town
Unified School DistrictWilliam Floyd Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$2,600 (-) Land $300 Building $2,300$541,667 (+11,149.57%) Land $56,604 Building $433,962
2024$13,150.00
2023$2,600 Land $300 Building $2,300$4,815 Land $556 Building $4,259

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 30 policies
Community Rating SystemClass 10 (0% premium discount)
Nearby Flood Policies30 in force
Nearby Flood Claims52 (1978–2024)
Claims Outside the SFHA5 of 52
Most Recent ClaimJan 2024 · rainfall accumulation
Claims by Event
  • Hurricane Sandy, Oct 2012 · 14 claims
  • Hurricane Irene, Aug 2011 · 6 claims
  • Coastal Storm, High Tides, Heavy Rain, & Flooding, Dec 1992 · 7 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 98% of the US · lower than 97.9% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemSUFFOLK COUNTY WATER AUTHORITY
serves 1,100,000 people · EPA ID NY5110526
Water SourceGroundwater
Last State InspectionJan 2024
Lead1 ppb (2025–2027)
action level 15 ppb

Violations Reported to EPA

Water QualityAsbestos
resolved · Jul 2020
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 376 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000

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