21 Brooks Ave, Nesconset, NY 11767 Property Records

Suffolk County and Smithtown Town property record for 21 Brooks Ave, Nesconset, NY 11767

Property Summary

Property TypeDuplex
Details6 bd · 3 ba · 2,245 sqft · built 1970
Lot Size0.5 acres (21,780 sqft)
Owner2 Individual Names on Record
Last Sale$169,500 (Sep 1993)
Tax Bill$14,532 (2024)
Flood ZoneZone X (minimal risk)
APN473489 166.-4-17

Property Details

APN / Parcel Number

Primary APN473489 166.-4-17
Alternative APNs
  • 0800-166.00-04.00-017.000
  • 348916600000040170000000
  • 47340038546

Interior

Bedrooms6 Beds
Full Baths3 Baths
Units2 Units
Stories1 Story
Building Area2,245 sqft Living Area
Gross Area3,520 sqft
1st Floor Area2,245 sqft
Basement Area500 sqft

Exterior

Year BuiltBuilt 1970
Effective Year BuiltEffective 1970
Architectural StyleRanch
Exterior MaterialWood
Lot Area21,780 sqft (0.5 acres)
View / LotSuburban
Garage TypeAttached
Garage Area775 sqft
Parking Spaces3 Parking Spaces
Pool TypeAbove-Ground Pool
Pool Area520 sqft
Patio Area519 sqft

Utilities, Heating & Cooling

Heating SystemHot Water
Heating FuelOil
SewerConnected
Water SourceCommercial

Location & Zoning

Street Address21 BROOKS AVE
CityNESCONSET
StateNY
Zip11767-2409
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Legal Description10-415326 TC-53 *580 PT LOT 1227 HOUSE & HOME MAP 20
Legal Subdivision20TH MAP HOUSE & HOME COMPANY
Legal Block4
Legal Lot Number17
JurisdictionSUFFOLK NY
Township / Civil DivisionSMITHTOWN
Census Block Group3
Census Block3009
Census Tract135402

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 Record2 Individual Names on Record
Mailing Address21 BROOKS AVE, NESCONSET, NY 11767-2409
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleSep 28, 1993 · Amount on Record
Deed SaleSep 28, 1993 · Amount on Record
Deed Book / Page11645 / 923
Last Transfer DateMay 14, 1997
Transfer Doc1183000891
Record UpdatedSep 20, 2026

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$5,800 (-) Land $315 Building $5,485$725,000 (+10,774.46%) Land $39,375 Building $685,625
2024$14,532.00
2023$5,800 Land $315 Building $5,485$6,667 Land $362 Building $6,305

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

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
ExposureDirect
burnable vegetation

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 338 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
2,300 / 2,300

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