21 Dewey Rd, Commack, NY 11725 Property Records

Suffolk County and Smithtown Town property record for 21 Dewey Rd, Commack, NY 11725

Property Summary

Property Type	Single Family Home
Lot Size	0.26 acres (11,326 sqft)
Owner	Individual Name on File
Tax Bill	$11,688 (2024)
Flood Zone	Zone X (minimal risk)
APN	`473489 146.-1-50`

Property Details

APN / Parcel Number

Primary APN	`473489 146.-1-50`
Alternative APNs	`0800-146.00-01.00-050.000` `348914600000010500000000` `47340034225`

Exterior

Lot Area	11,326 sqft (0.26 acres)

Location & Zoning

Street Address	21 DEWEY RD
City	COMMACK
State	NY
Zip	11725-5312
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	21-849551 TC-52 *3238 LOT 97 VALMONT VILLAGE SEC 3
Legal Block	1
Legal Lot Number	50
Jurisdiction	SUFFOLK NY
Township / Civil Division	SMITHTOWN
Census Block Group	3
Census Block	3004
Census Tract	135205

Owner

21 Dewey Rd is owned by an individual who acquired it in June 2012.

Source: Suffolk County and Smithtown Town records, as of September 25, 2026

Owner of Record	Individual Name on File
Mailing Address	4 WOODMERE DR, NORTHPORT, NY 11768-1420
Owner Type	Individual

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 Names	Name on Deed
Last Transfer Date	Jun 11, 2012
Transfer Doc	0126980138
Record Updated	Oct 29, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Smithtown Town
Unified School District	Commack Union Free School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$4,200 Land $300 Building $3,900	$525,000 Land $37,500 Building $487,500
2024	$11,688.00
2023		$4,200 Land $300 Building $3,900	$4,828 Land $345 Building $4,483

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 21 Dewey Rd in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1979.

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force
Nearby Flood Claims	5 (1979–2024)
Claims Outside the SFHA	3 of 5
Most Recent Claim	Aug 2024 · Severe Storm And Flooding

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 21 Dewey Rd 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 Risk	Not 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 System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526
Water Source	Groundwater
Last State Inspection	Jan 2024
Lead	1 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

Water Quality	Asbestos resolved · Jul 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 267 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	980 / 880
T-Mobile Fixed Wireless	100 / 20