37 Riverside Ave, Mastic Beach, NY 11951 Property Records

Suffolk County and Brookhaven Town property record for 37 Riverside Ave, Mastic Beach, NY 11951

Property Summary

Property Type	Single Family Home
Lot Size	0.66 acres (28,750 sqft)
Owner	Company Name on File
Last Sale	$437,700 (Oct 2021)
Tax Bill	$10,171 (2024)
Deeds & Mortgages	Oct 2021 Sale
Flood Zone	Zone X (minimal risk)
APN	`0200-940.00-05.00-016.000`

Property Details

APN / Parcel Number

Primary APN	`0200-940.00-05.00-016.000`
Alternative APNs	`472289 940.00-05-016.000` `0209003000100016000` `00004106160` `4106160`

Exterior

Lot Area	28,750 sqft (0.66 acres)
View / Lot	Canal Front

Location & Zoning

Account Number	4106160
Street Address	37 RIVERSIDE AVE
City	MASTIC BEACH
State	NY
Zip	11951-1101
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	MASTIC ACRES
Legal Block	5
Legal Lot Number	500
Jurisdiction	SUFFOLK NY
Township / Civil Division	BROOKHAVEN
Census Block Group	1
Census Block	1003
Census Tract	159512

Owner

37 Riverside Ave is owned by a company that bought it in October 2021.

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

Owner of Record	Company Name on File
Mailing Address	317 E 3RD ST, 19, NEW YORK, NY 10009-7809
Owner Type	Company
Vesting	Company

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

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 28, 2021 · Amount on File
Deed Sale	Oct 28, 2021 · Amount on File
Deed Book / Page	13126 / 873
Prior Transfer Date	Jun 14, 2013
Prior Transfer Doc	0127350686
Record Updated	Sep 20, 2026

October 2021: Deed, Transfer

Document Type	Deed
Jurisdiction	SUFFOLK NY
Recording Date	Oct 28, 2021
Property Address	37 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
Document Number	0131260873
Book / Page	13126 / 873
Instrument Date	Jun 30, 2021
Transaction Type	Transfer
Record Updated	May 6, 2022

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	317 E 3RD ST, NEW YORK, NY 10009-7803

Tax Assessment & Valuation

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$2,550 Land $300 Building $2,250	$531,250 Land $56,604 Building $424,528
2024	$10,171.00
2023		$2,550 Land $300 Building $2,250	$4,723 Land $556 Building $4,167

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

Flood

FEMA maps place 37 Riverside Ave in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

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

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 30 policies
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	30 in force
Nearby Flood Claims	52 (1978–2024)
Claims Outside the SFHA	5 of 52
Most Recent Claim	Jan 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

Wildfire risk around 37 Riverside Ave is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 98% of the US · lower than 97.9% of New York
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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 System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526
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, 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

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