45 Riverside Ave, Mastic Beach, NY 11951 Property Records

Suffolk County and Brookhaven Town property record for 45 Riverside Ave, Mastic Beach, NY 11951

Property Summary

Property Type	Single Family Home
Lot Size	0.33 acres (14,375 sqft)
Owner	Individual Name on Record
Tax Bill	$9,212 (2024)
Deeds & Mortgages	Mar 2018 Sale
Flood Zone	Zone X (minimal risk)
APN	`0200-940.00-05.00-013.000`

Property Details

APN / Parcel Number

Primary APN	`0200-940.00-05.00-013.000`
Alternative APNs	`472289 940.00-05-013.000` `0209003000100013000` `00004106130` `4106130`

Exterior

Lot Area	14,375 sqft (0.33 acres)
View / Lot	Canal Front

Location & Zoning

Account Number	4106130
Street Address	45 RIVERSIDE AVE
City	MASTIC BEACH
State	NY
Zip	11951-1101
Property Category	Residential
Property Type	Residential > Single Family > Home
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

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 Record	Individual Name on Record
Mailing Address	387 ORCHID DR, MASTIC BEACH, NY 11951-1228
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Sep 20, 2026

March 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SUFFOLK NY
Recording Date	Mar 28, 2018
Property Address	45 RIVERSIDE AVE, MASTIC BEACH, NY 11951-1101
Document Number	0129550477
Book / Page	012955 / 000477
Instrument Date	Mar 7, 2018
Transaction Type	Transfer
Record Updated	Nov 27, 2019
Title Company	AMERICAN DREAM ABSTRACT

Transaction

Amount	Amount Recorded
Tax	$1,045.00
Amount Accuracy	Confirmed

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	387 ORCHID DR MASTIC BEACH NY 119511228, MASTIC BEACH, NY 11951-1228

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		$2,300 (-) Land $150 Building $2,150	$479,167 (+11,150.69%) Land $28,302 Building $405,660
2024	$9,212.00
2023		$2,300 Land $150 Building $2,150	$4,259 Land $278 Building $3,981

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 Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record 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

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

Wildfire Risk	Low lower than 97% of the US · lower than 96% 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