20 Gilbert Ave, Smithtown, NY 11787 Property Records

Suffolk County and Smithtown Town property record for 20 Gilbert Ave, Smithtown, NY 11787

Property Summary

Property TypeCommercial Office
Lot Size1.18 acres (51,401 sqft)
OwnerCompany Name on Record
Last Sale$1,500,000 (Jun 2009)
Tax Bill$37,466 (2024)
Deeds & MortgagesMar 2017 Mortgage
Flood ZoneZone X (minimal risk)
APN473489 135.-5-6.1

Property Details

APN / Parcel Number

Primary APN473489 135.-5-6.1
Alternative APNs
  • 0800-135.00-05.00-006.001
  • 348913500000050060010000
  • 47340031755

Interior

Units18 Units

Exterior

Lot Area51,401 sqft
View / LotSuburban

Utilities, Heating & Cooling

SewerConnected
Water SourceCommercial

Location & Zoning

Street Address20 GILBERT AVE
CitySMITHTOWN
StateNY
Zip11787-5326
Property CategoryCommercial
Property TypeCommercial > Office > Commercial Office
Legal Description18-713751 TC-53 *1397 LOTS 32 TO 46 SMITHTOWN HOMESITES
Legal Block5
Legal Lot Number6
JurisdictionSUFFOLK NY
Township / Civil DivisionSMITHTOWN
Census Block Group2
Census Block2001
Census Tract135401

Owner

Source: Suffolk County and Smithtown 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 GILBERT AVE, SMITHTOWN, NY 11787-5326
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJun 25, 2009 · Amount on Record
Deed SaleJun 25, 2009 · Amount on Record
Deed Book / Page12591 / 886
Prior Transfer DateSep 15, 2008
Record UpdatedSep 20, 2026

March 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSUFFOLK NY
Property Address20 GILBERT AVE, SMITHTOWN, NY 11787-5326
Document Number0228120350
Instrument DateMar 29, 2017
Transaction TypeMortgage
Record UpdatedAug 22, 2018
Title CompanyLANDSEND ABSTRACT

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address20 GILBERT AVE #207 SMITHTOWN NY 117875326, 207, SMITHTOWN, NY 11787-5326

Mortgage

Document Number0228120350
DateApr 27, 2017
Book Page022812/000350
Lender
NameCAPITAL ONE BK NA
TypeFunding / Finance Company
Address1680 CAPITAL ONE DR # 10, MCLEAN, VA 22102-3407
Agreement
AmountAmount Recorded

Tax Assessment & Valuation

Source: Suffolk County and Smithtown Town assessment roll, as of August 11, 2026

Property Jurisdictions

TypeName
StateNew York
CountySuffolk County
County SubdivisionSmithtown Town
Unified School DistrictSmithtown Central School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$14,950 (-) Land $2,500 Building $12,450$1,868,750 (+10,774.94%) Land $312,500 Building $1,556,250
2024$37,466.00
2023$14,950 Land $2,500 Building $12,450$17,184 Land $2,874 Building $14,310

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 Policies5 in force
Nearby Flood Claims6 (1979–2012)
Claims Outside the SFHA4 of 6
Most Recent ClaimOct 2012 · Hurricane Sandy

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 98% of the US · lower than 97.9% 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 257 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Optimum
Fiber · Cable
8,000 / 8,000
Verizon
Fiber
2,300 / 2,300
T-Mobile
Fixed Wireless
100 / 20

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