91 Washington Ave, Mastic, NY 11950 Property Records

Suffolk County and Brookhaven Town property record for 91 Washington Ave, Mastic, NY 11950

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,212 sqft · built 2002
Lot Size	0.23 acres (10,019 sqft)
Owner	Individual Name on File
Last Sale	$184,500 (Oct 2015)
Tax Bill	$8,445 (2024)
Deeds & Mortgages	May 2017 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`0200-787.00-03.00-069.002`

Property Details

APN / Parcel Number

Primary APN	`0200-787.00-03.00-069.002`
Alternative APNs	`472289 787.00-03-069.002` `00004516088` `0004516088` `4516088`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,212 sqft Living Area

Exterior

Year Built	Built 2002
Effective Year Built	Effective 2002
Architectural Style	Colonial
Exterior Material	Aluminum/Vinyl
Lot Area	10,019 sqft (0.23 acres)
View / Lot	Waterfront

Utilities, Heating & Cooling

Heating System	Radiant

Location & Zoning

Account Number	4516088
Street Address	91 WASHINGTON AVE
City	MASTIC
State	NY
Zip	11950-2507
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MASTIC PARK 735 SEC 5 LOT 5 SEE MEM
Legal Subdivision	MASTIC PARK
Legal Block	7000
Legal Lot Number	300
Jurisdiction	SUFFOLK NY
Township / Civil Division	BROOKHAVEN
Census Block Group	3
Census Block	3001
Census Tract	159416

Owner

Source: Suffolk County and Brookhaven Town records · APN 0200-787.00-03.00-069.002

Assessment roll updated August 11, 2026 · Last verified August 2026

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

Owner of Record	Individual Name on File
Mailing Address	91 WASHINGTON AVE, MASTIC, NY 11950-2507
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Oct 24, 2015 · Amount on Record
Deed Sale	Oct 24, 2015 · Amount on Record
Prior Sale	Mar 27, 2015 · Amount on Record
Deed Book / Page	12837 / 906
Record Updated	Sep 20, 2026

May 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SUFFOLK NY
Property Address	91 WASHINGTON AVE, MASTIC, NY 11950-2507
Document Number	0228200085
Book / Page	022820 / 000085
Instrument Date	May 11, 2017
Transaction Type	Mortgage
Record Updated	Aug 15, 2017
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	91 WASHINGTON AVE MASTIC NY 119502507, MASTIC, NY 11950-2507

Mortgage

Document Number	0228200085
Date	May 23, 2017
Book Page	022820/000085

Lender

Name	NASSAU EDUCATORS FCU
Type	Credit Union
Address	WESTBURY, NY 11590

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	May 22, 2032

Tax Assessment & Valuation

Source: Suffolk County and Brookhaven Town records · Assessment roll updated August 11, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Brookhaven Town
Unified School District	William Floyd Union Free School District (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$2,100 (-) Land $200 Building $1,900	$437,500 (+11,149.68%) Land $37,736 Building $358,491
2024	$8,445.00
2023		$2,100 Land $200 Building $1,900	$3,889 Land $370 Building $3,519

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Suffolk County (36103C), as of September 18, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 361031594163, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Wildfire

Wildfire Risk	Low lower than 94% of the US · lower than 93% of New York
Wildfire Likelihood	0.02% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 128 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system NY5110526, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people
Water Source	Groundwater
Last State Inspection	Jan 2024
Lead	1 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

Water Quality	Asbestos resolved · Jul 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.