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20 Grenville Ave, Patchogue, NY 11772 Property Records

Suffolk County and Brookhaven Town property record for 20 Grenville Ave, Patchogue, NY 11772

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 2,085 sqft · built 1940
Lot Size0.17 acres (7,405 sqft)
Owner2 Trust Names on File
Last Sale$457,000 (Jul 2021)
Tax Bill$13,172 (2024)
Deeds & MortgagesJul 2021 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN0204-016.00-07.00-021.000

Property Details

APN / Parcel Number

Primary APN0204-016.00-07.00-021.000
Alternative APNs
  • 472207 016.00-07-021.000
  • 220701600000070210000000
  • 00002929650
  • 0002929650
  • 2929650

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms7 Rooms
Stories2 Stories
Building Area2,085 sqft Living Area
1st Floor Area1,240 sqft

Exterior

Year BuiltBuilt 1940
Effective Year BuiltEffective 1940
Exterior MaterialWood
Lot Area7,405 sqft (0.17 acres)
View / LotWaterfront

Utilities, Heating & Cooling

Heating SystemRadiant

Location & Zoning

Account Number2929650
Street Address20 GRENVILLE AVE
CityPATCHOGUE
StateNY
Zip11772-3529
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMRS KATE L GILBERT AMD 222 B2 11
Legal SubdivisionGILBERT KATE L AMENDED
Legal Block6000
Legal Lot Number700
JurisdictionSUFFOLK NY
Township / Civil DivisionBROOKHAVEN
Census Block Group2
Census Block2010
Census Tract159000

Owner

20 Grenville Ave is owner-occupied and held in a trust since December 2024.

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

Owner of Record2 Trust Names on File
Mailing Address20 GRENVILLE AVE, PATCHOGUE, NY 11772-3529
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Revocable Trust

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 Names2 Names on Deed
Last SaleJul 12, 2021 · Amount on File
Deed SaleJul 12, 2021 · Amount on File
Deed Book / Page13112 / 34
Last Transfer DateDec 11, 2024
Transfer Doc0132990211
Record UpdatedSep 20, 2026

July 2021: Personal Representative Deed, Transfer

Document TypePersonal Representative Deed
JurisdictionSUFFOLK NY
Recording DateJul 12, 2021
Property Address20 GRENVILLE AVE, PATCHOGUE, NY 11772-3529
Document Number0131120034
Book / Page13112 / 34
Instrument DateJun 10, 2021
Transaction TypeTransfer
Record UpdatedMay 6, 2022

Transaction

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

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address204 SADDLE ROCK RD, HOLBROOK, NY 11741-4809

Mortgage

Document Number0232980112
DateJul 12, 2021
Book Page23298/112
InstrumentDM022888
Lender
NameEAST COAST CAPITAL CORP
Agreement
TypeStand-Alone First Mortgage
AmountAmount on Record
Term361 Months
DueAug 1, 2051

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
MunicipalityPatchogue Village
Unified School DistrictPatchogue-Medford Union Free School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$2,600 Land $400 Building $2,200$541,666 Land $75,472 Building $415,094
2024$13,172.00
2023$2,600 Land $400 Building $2,200$72,222 Land $11,111 Building $61,111

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 20 Grenville Ave in Zone X, an area of minimal flood risk, within 500 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 ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on File
median of 102 policies
Nearby Flood Policies102 in force
Nearby Flood Claims128 (1978–2024)
Claims Outside the SFHA29 of 128
Most Recent ClaimJan 2024 · tidal / storm surge
Claims by Event
  • Hurricane Sandy, Oct 2012 · 68 claims
  • Hurricane Irene, Aug 2011 · 13 claims
  • Severe Blizzard, Mar 1993 · 5 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

The area around 20 Grenville Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land within 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 380 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable		8,000 / 8,000
Verizon
Fiber · Fixed Wireless in parts of the area		980 / 880

May also be available: T-Mobile.

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