421 Thieriot Ave, Bronx, NY 10473 Property Records

New York City property record for 421 Thieriot Ave, Bronx, NY 10473

Property Summary

Property Type	Duplex
Details	1,944 sqft · built 1920
Lot Size	0.057 acres (2,500 sqft)
Owner	2 Individual Names on File
Last Sale	$575,000 (Feb 2021)
Tax Bill	$5,518 (2025)
Deeds & Mortgages	Feb 2021 Sale & Mortgage
APN	`03496-0062`

Property Details

APN / Parcel Number

Primary APN	`03496-0062`
Alternative APNs	`1403034960062` `2-03496-0062`

Interior

Units	2 Units
Stories	2 Stories
Building Area	1,944 sqft Living Area
1st Floor Area	608 sqft

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1920
Architectural Style	Duplex Single
Lot Area	2,500 sqft (0.057 acres)
Lot Dimensions	100 ft deep x 25 ft wide

Location & Zoning

Account Number	2-03496-0062
Street Address	421 THIERIOT AVE
City	BRONX
State	NY
Zip	10473-3623
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R4A
Legal Block	3496
Legal Lot Number	62
Jurisdiction	BRONX NY
Township / Civil Division	BRONX
Census Block Group	1
Census Block	1001
Census Tract	200

Owner

Source: New York City records · APN 03496-0062

Assessment roll updated April 29, 2026 · Last verified May 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	829 ADEE AVE, 3N, BRONX, NY 10467-8668
Owner Type	Individual
Vesting	Individual(s)

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Feb 01, 2021 · Amount on Record
Deed Sale	Feb 01, 2021 · Amount on Record
Prior Sale	Dec 03, 1999 · Amount on Record
Deed Document Number	20212021000037829
Prior Transfer Date	Mar 11, 2003
Record Updated	Jun 08, 2026

February 2021: Deed, Transfer

Document Type	Deed
Jurisdiction	BRONX NY
Recording Date	Feb 01, 2021
Property Address	421 THIERIOT AVE, BRONX, NY 10473-3623
Document Number	0000037829
Instrument Date	Jan 11, 2021
Instrument	2021000037829
Transaction Type	Transfer
Record Updated	Jul 09, 2021

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	309 AVON RD, 309, MONTGOMERY, AL 36109-3307

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	829 ADEE AVE APT 3N, 3N, BRONX, NY 10467-8668

Mortgage

Document Number	0000037830
Date	Feb 01, 2021
Instrument	2021000037830

Lender

Name	FINANCE OF AMERICA MORTGAGE LLC

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

Source: New York City records · Assessment roll updated April 29, 2026 · Last verified May 2026

Property Jurisdictions

Type	Name
State	New York
County	Bronx County
Municipality	New York City
Unified School District	New York City Department Of Education (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$28,080 (+8.33%) Land $4,493 Building $23,587	$725,000 (+16.75%) Land $116,000 Building $609,000
2025	$5,518.00 (+5.99%)
2023	$5,206.00	$25,920 Land $4,842 Building $21,078	$621,000 Land $116,000 Building $505,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Optimum Communications Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Starry.

Based on FCC filings for 1,177 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	NEW YORK CITY SYSTEM serves 8,271,000 people
Water Source	Surface water
Last State Inspection	Dec 2025
Lead	10 ppb (2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	Uncovered finished water reservoir currently in violation since Feb 2017
Monitoring and Reporting	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.