48 Neptune Ave, Mastic, NY 11950 Property Records

Suffolk County and Brookhaven Town property record for 48 Neptune Ave, Mastic, NY 11950

Property Summary

Property TypeSingle Family Home
Details1 bd · 1 ba · 852 sqft · built 1990
Lot Size0.25 acres (10,890 sqft)
Owner2 Individual Names on File
Last Sale$398,000 (Apr 2022)
Tax Bill$8,253 (2024)
Deeds & MortgagesApr 2022 Sale & Mortgage
Sep 2021 Sale
Flood ZoneZone X (minimal risk)
APN0200-909.00-07.00-009.000

Property Details

APN / Parcel Number

Primary APN0200-909.00-07.00-009.000
Alternative APNs
  • 472289 909.00-07-009.000
  • 228990900000070090000000
  • 00004015990
  • 0004015990
  • 4015990

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms4 Rooms
Stories1 Story
Building Area852 sqft Living Area

Exterior

Year BuiltBuilt 1990
Effective Year BuiltEffective 1990
Architectural StyleCape Cod
Exterior MaterialWood
Lot Area10,890 sqft (0.25 acres)
View / LotWaterfront

Utilities, Heating & Cooling

Heating SystemRadiant

Location & Zoning

Account Number4015990
Street Address48 NEPTUNE AVE
CityMASTIC
StateNY
Zip11950-5005
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMASTIC ACRES 1464 UNIT 4 2085
Legal SubdivisionMASTIC ACRES
Legal Block9000
Legal Lot Number700
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group2
Census Block2022
Census Tract159511

Owner

48 Neptune Ave is owned and occupied by two individuals who bought it in April 2022.

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

Owner of Record2 Individual Names on File
Mailing Address48 NEPTUNE AVE, MASTIC, NY 11950-5005
OccupancyOwner Occupied
Owner TypeIndividual

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

DateDocument
Apr 8, 2022Deed, Transfer · Stand-Alone First Mortgage
CITIZENS BANK
Sep 17, 2021Deed, Transfer

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleApr 8, 2022 · Amount on File
Deed SaleApr 8, 2022 · Amount on File
Prior SaleSep 17, 2021 · Amount on File
Deed Book / Page13150 / 845
Record UpdatedSep 20, 2026

April 2022: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateApr 8, 2022
Property Address48 NEPTUNE AVE, MASTIC, NY 11950-5005
Document Number0131500845
Book / Page13150 / 845
Instrument DateFeb 7, 2022
Transaction TypeTransfer
Record UpdatedApr 3, 2026

Transaction

AmountAmount on Record
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address401 MCCALL AVE, WEST ISLIP, NY 11795-4110

Mortgage

Document Number0023402859
DateApr 8, 2022
Instrument23402/859
Lender
NameCITIZENS BANK
TypeBank
Agreement
TypeStand-Alone First Mortgage
AmountAmount on Record
Term361 Months
DueMay 1, 2052

September 2021: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateSep 17, 2021
Property Address48 NEPTUNE AVE, MASTIC, NY 11950-5005
Document Number0131200377
Book / Page13120 / 377
Instrument DateJul 27, 2021
Transaction TypeTransfer
Record UpdatedOct 26, 2021

Transaction

AmountAmount on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address770 PECONIC ST, RONKONKOMA, NY 11779-6518

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$2,050 Land $200 Building $1,850$427,084 Land $37,736 Building $349,057
2024$8,253.00
2023$2,050 Land $200 Building $1,850$3,796 Land $370 Building $3,426

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 48 Neptune Ave in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 2012.

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

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies1 in force
Nearby Flood Claims5 (2012–2021)
Claims Outside the SFHA3 of 5
Most Recent ClaimOct 2021 · rainfall accumulation
Claims by Event
  • Hurricane Sandy, Oct 2012 · 3 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 48 Neptune 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 RiskLow
lower than 99.1% of the US · lower than 99.2% 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 461 locations within half a mile, as of December 31, 2025

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

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