31 Neptune Ave, Mastic, NY 11950 Property Records

Suffolk County and Brookhaven Town property record for 31 Neptune Ave, Mastic, NY 11950

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 2,156 sqft · built 1973
Lot Size0.25 acres (10,890 sqft)
OwnerIndividual Name on Record
Last Sale$600,000 (Dec 2025)
Tax Bill$7,210 (2024)
Deeds & MortgagesDec 2025 Sale
Dec 2025 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN0200-909.00-06.00-040.000

Property Details

APN / Parcel Number

Primary APN0200-909.00-06.00-040.000
Alternative APNs
  • 472289 909.00-06-040.000
  • 228990900000060400000000
  • 00004015840
  • 0004015840
  • 4015840

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area2,156 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1973
Effective Year BuiltEffective 1973
Architectural StyleCape Cod
Exterior MaterialWood
Lot Area10,890 sqft (0.25 acres)
View / LotWaterfront

Utilities, Heating & Cooling

Heating SystemRadiant

Location & Zoning

Account Number4015840
Street Address31 NEPTUNE AVE
CityMASTIC
StateNY
Zip11950-5004
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMASTIC ACRES 1464 UNIT 4 2066
Legal SubdivisionMASTIC ACRES
Legal Block9000
Legal Lot Number600
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group2
Census Block2021
Census Tract159511

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 RecordIndividual Name on Record
Mailing Address31 NEPTUNE AVE, MASTIC, NY 11950-5004
OccupancyOwner Occupied
Owner TypeIndividual
VestingIndividual(s)

Deeds, Mortgages & Sale History

DateDocument
Dec 4, 2025Deed, Transfer
Dec 4, 2025Deed, Transfer
CMG MORTGAGE INC

Assessor's Deed Record

Deed NamesName on Deed
Last SaleDec 4, 2025 · Amount on Record
Deed SaleDec 4, 2025 · Amount on Record
Prior SaleNov 13, 2007 · Amount on Record
Deed Book / Page13318 / 817
Prior Transfer DateNov 12, 1999
Prior Transfer Doc1202000872
Record UpdatedSep 20, 2026

December 2025: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateDec 4, 2025
Property Address31 NEPTUNE AVE, MASTIC, NY 11950-5004
Document Number0133180817
Book / Page13318 / 817
Instrument DateSep 18, 2025
Transaction TypeTransfer
Record UpdatedJan 28, 2026

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Lis Pendens
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address31 NEPTUNE AVE, MASTIC, NY 11950-5004

December 2025: Deed, Transfer

Document TypeDeed
JurisdictionSUFFOLK NY
Recording DateDec 4, 2025
Property Address31 NEPTUNE AVE, MASTIC, NY 11950-5004
Document Number0133180817
Book / Page13318 / 817
Instrument DateSep 18, 2025
Transaction TypeTransfer
Record UpdatedFeb 18, 2026
Title CompanyEQUITY NATIONAL TITLE LLC, EQUITY NATIONAL TITLE

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Lis Pendens
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address31 NEPTUNE AVE, MASTIC, NY 11950-5004

Mortgage

Document Number0023699725
DateDec 4, 2025
Instrument23699/725
Lender
NameCMG MORTGAGE INC
TypeMortgage Company
Agreement
AmountAmount Recorded
Term337 Months
DueJan 1, 2054

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$2,005 (-) Land $200 Building $1,805$417,709 (+12.5%) Land $37,736 Building $340,566
2024$7,210.00 Homeowner's exemption$2,005 (-) Land $200 Building $1,805$371,296 (+9,899.89%) Land $37,037 Building $334,259
2023$2,005 Land $200 Building $1,805$3,713 Land $370 Building $3,343

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 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

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

Nearby Properties on Neptune Ave

Nearby Streets

Search Property Records by Address or Parcel Number