23 Washington Ave, Mastic, NY 11950 Property Records

Suffolk County and Brookhaven Town property record for 23 Washington Ave, Mastic, NY 11950

Property Summary

Property TypeSingle Family Home
Lot Size0.14 acres (6,098 sqft)
OwnerCompany Name on Record
Tax Bill$460 (2024)
Flood ZoneZone X (minimal risk)
APN0200-824.00-05.00-040.000

Property Details

APN / Parcel Number

Primary APN0200-824.00-05.00-040.000
Alternative APNs
  • 472289 824.00-05-040.000
  • 228982400000050400000000
  • 00004517270
  • 0004517270
  • 4517270

Exterior

Lot Area6,098 sqft (0.14 acres)
View / LotLake Front

Location & Zoning

Account Number4517270
Street Address23 WASHINGTON AVE
CityMASTIC
StateNY
Zip11950-2508
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMASTIC PARK 735 SEC 5 5016 TO 5018
Legal SubdivisionMASTIC PARK
Legal Block4000
Legal Lot Number500
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group3
Census Block3001
Census Tract159416

Owner

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordCompany Name on Record
Mailing Address2 HAMILTON PL, LAKE GROVE, NY 11755-1914
Owner TypeCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedSep 20, 2026

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$2,450 (+1,941.67%) Land $120 Building $2,330$510,417 (+229,817.57%) Land $22,642 Building $439,623
2024$460.00
2023$120 Land $120$222 Land $222

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 in force

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 97% of the US · lower than 96% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureDirect
burnable vegetation

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 531 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

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