173 Riviera Dr, Mastic Beach, NY 11951 Property Records

Suffolk County and Brookhaven Town property record for 173 Riviera Dr, Mastic Beach, NY 11951

Property Summary

Property Type	Single Family Home
Lot Size	0.23 acres (10,019 sqft)
Owner	2 Individual Names on File
Last Sale	$500,000 (Oct 2004)
Tax Bill	$10,523 (2024)
Flood Zone	Zone AE (high risk)
APN	`0200-982.20-06.00-028.000`

Property Details

APN / Parcel Number

Primary APN	`0200-982.20-06.00-028.000`
Alternative APNs	`472289 982.20-06-028.000` `00004305430` `4305430`

Exterior

Lot Area	10,019 sqft (0.23 acres)
View / Lot	Waterfront

Location & Zoning

Account Number	4305430
Street Address	173 RIVIERA DR
City	MASTIC BEACH
State	NY
Zip	11951-6049
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	MAP MASTIC BEACH
Legal Block	2200
Legal Lot Number	600
Jurisdiction	SUFFOLK NY
Township / Civil Division	BROOKHAVEN
Census Block Group	3
Census Block	3009
Census Tract	159516

Owner

Source: Suffolk County and Brookhaven Town records · APN 0200-982.20-06.00-028.000

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	2 Individual Names on File
Mailing Address	173 RIVIERA DR, MASTIC BEACH, NY 11951-6049
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 18, 2004 · Amount on Record
Deed Sale	Oct 18, 2004 · Amount on Record
Deed Book / Page	12349 / 642
Record Updated	Sep 20, 2026

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		$2,800 (-) Land $200 Building $2,600	$583,334 (+11,150.41%) Land $37,736 Building $490,566
2024	$10,523.00
2023		$2,800 Land $200 Building $2,600	$5,185 Land $370 Building $4,815

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 18, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	8.0 ft
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on Record median of 153 policies
Nearby Flood Policies	153 in force
Nearby Flood Claims	54 (1991–2024)
Most Recent Claim	Jan 2024 · rainfall accumulation
Claims by Event	Hurricane Sandy, Nov 2012 · 29 claims Hurricane Irene, Aug 2011 · 2 claims Severe Blizzard, Mar 1993 · 3 claims

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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

Based on FCC filings for 117 locations within half a mile of this property.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System 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.