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20 Bayside Rd, Mastic Beach, NY 11951 Property Records

Suffolk County and Brookhaven Town property record for 20 Bayside Rd, Mastic Beach, NY 11951

Property Summary

Property TypeSingle Family Home
Lot Size0.18 acres (7,841 sqft)
OwnerCompany Name on Record
Last Sale$60,000 (May 2017)
Tax Bill$3,336 (2024)
Deeds & MortgagesApr 2017 Mortgage
May 2017 Sale
Flood ZoneZone AE (high risk)
APN0200-983.40-14.00-078.001

Property Details

APN / Parcel Number

Primary APN0200-983.40-14.00-078.001
Alternative APNs
  • 472289 983.40-14-078.001
  • 0209033000500078001
  • 00004410510
  • 4410510

Exterior

Lot Area7,841 sqft (0.18 acres)
View / LotWaterfront

Location & Zoning

Account Number4410510
Street Address20 BAYSIDE RD
CityMASTIC BEACH
StateNY
Zip11951-6804
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal SubdivisionMAP MASTIC BEACH
Legal Block3401
Legal Lot Number400
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group2
Census Block2009
Census Tract159509

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 RecordCompany Name on Record
Mailing Address20 BAYSIDE RD, MASTIC BEACH, NY 11951-6804
OccupancyOwner Occupied
Owner TypeCompany
VestingBorrower in Default

Deeds, Mortgages & Sale History

DateDocument
Apr 25, 2017Deed of Trust, Mortgage · Conventional Mortgage
JONATHAN SULLIVAN
May 4, 2017Grant Deed, Transfer
STRATEGIC LAND SERVICES LLC, STRATEGIC LAND SVCS LLC

Assessor's Deed Record

Deed NamesName on Deed
Last SaleMay 4, 2017 · Amount on Record
Deed SaleMay 4, 2017 · Amount on Record
Prior SaleFeb 21, 1996 · Amount on Record
Deed Book / Page12911 / 369
Record UpdatedSep 20, 2026

April 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address20 BAYSIDE RD, MASTIC BEACH, NY 11951-6804
Document Number0228140941
Instrument DateApr 25, 2017
Transaction TypeMortgage
Record UpdatedNov 27, 2019
Title CompanySTRATEGIC LAND SERVICES LLC, STRATEGIC LAND SVCS LLC

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address20 BAYSIDE RD MASTIC BEACH NY 119516804, MASTIC BEACH, NY 11951-6804

Mortgage

Document Number0228140941
DateMay 5, 2017
Book Page022814/000941
Lender
NameJONATHAN SULLIVAN
Address20 BAYSIDE RD, MASTIC BEACH, NY 11951-6804
Agreement
TypeConventional Mortgage
AmountAmount Recorded

May 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSUFFOLK NY
Recording DateMay 4, 2017
Property Address20 BAYSIDE RD, MASTIC BEACH, NY 11951-6804
Document Number0129110369
Book / Page012911 / 000369
Instrument DateApr 25, 2017
Transaction TypeTransfer
Record UpdatedNov 27, 2019
Title CompanySTRATEGIC LAND SERVICES LLC, STRATEGIC LAND SVCS LLC

Transaction

AmountAmount Recorded
Tax$240.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCorporate Trust
Address20 BAYSIDE RD MASTIC BEACH NY 119516804, MASTIC BEACH, NY 11951-6804

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$750 (-) Land $160 Building $590$156,250 (+11,149.1%) Land $30,189 Building $111,321
2024$3,336.00
2023$750 Land $160 Building $590$1,389 Land $296 Building $1,093

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

Flood

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

FEMA Flood ZoneZone AE
high risk
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood Elevation8.0 ft
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on Record
median of 165 policies
Nearby Flood Policies165 in force
Nearby Flood Claims186 (1982–2025)
Claims Outside the SFHA32 of 186
Most Recent ClaimOct 2025
Claims by Event
  • Hurricane Sandy, Oct 2012 · 69 claims
  • Hurricane Irene, Aug 2011 · 6 claims
  • Severe Storms And Flooding, Mar 2010 · 9 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 RiskLow
lower than 99.8% of the US · lower than 99.9% of New York
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
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 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 74 locations within half a mile, as of December 31, 2025

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

May also be available: Verizon.

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