421 Ave I, Brooklyn, NY 11230 Property Records

New York City property record for 421 Ave I, Brooklyn, NY 11230

Property Summary

Property Type	Single Family Home
Details	4,388 sqft · built 1910
Lot Size	0.114 acres (4,950 sqft)
Owner	Individual Name on File
Tax Bill	$14,817 (2025)
Deeds & Mortgages	Aug 2017 Construction Loan
APN	`06507-0018`

Property Details

APN / Parcel Number

Primary APN	`06507-0018`
Alternative APNs	`2001065070018` `3-06507-0018`

Interior

Stories	2 Stories
Building Area	4,388 sqft Living Area
1st Floor Area	1,755 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1995
Lot Area	4,950 sqft (0.114 acres)
Lot Dimensions	110 ft deep x 45 ft wide
View / Lot	Corner

Location & Zoning

Account Number	3-06507-0018
Street Address	421 AVENUE I
City	BROOKLYN
State	NY
Zip	11230-2619
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R3-1
Legal Block	6507
Legal Lot Number	18
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	2
Census Block	2007
Census Tract	46201

Owner

Source: New York City records · APN 06507-0018

Assessment roll updated May 4, 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	Individual Name on File
Mailing Address	421 AVENUE I, BROOKLYN, NY 11230-2619
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 10, 2001
Deed Sale	Dec 10, 2001
Prior Sale	Oct 09, 1996 · Amount on Record
Deed Book / Page	05391 / 01926
Prior Transfer Date	Apr 01, 1997
Record Updated	Jun 08, 2026

August 2017: Trustee's Deed, Construction Loan

Document Type	Trustee's Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Aug 16, 2017
Property Address	421 AVENUE I, BROOKLYN, NY 11230-2619
Instrument Date	Aug 08, 2017
Instrument	305820
Transaction Type	Construction Loan
Record Updated	Aug 23, 2018
Title Company	MEISTER ABSTRACT CORPORATION, MEISTER ABSTRACT CORP

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 AVENUE I BROOKLYN NY 112302619, BROOKLYN, NY 11230-2619

Mortgage

Document Number	0000305820
Date	Aug 16, 2017
Instrument	305820

Lender

Name	BETHPAGE FCU
Type	Credit Union
Address	BETHPAGE, NY 11714

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	12 Months
Due	Aug 15, 2018

Tax Assessment & Valuation

Source: New York City records · Assessment roll updated May 4, 2026 · Last verified May 2026

Property Jurisdictions

Type	Name
State	New York
County	Kings 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 and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$222,300 (+8.46%) Land $40,140 Building $182,160	$3,705,000 (+8.46%) Land $669,000 Building $3,036,000
2025	$14,817.00 (+6.84%)
2023	$13,869.00	$204,960 Land $40,140 Building $164,820	$3,416,000 Land $669,000 Building $2,747,000

Flood & Wildfire

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

Flood

FEMA Flood Zone	Not on file
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Historic Designation

Source: NPS National Register of Historic Places as of August 1, 2026 · Last verified October 2026

Listed Area	Within Ocean Parkway listed 1983 · 1 contributing resources · NRIS 83001697

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

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
Xchange Telecom Fixed Wireless	1,000 / 1,000
T-Mobile USA Fixed Wireless	100 / 20

May also be available: Starry.

Based on FCC filings for 1,223 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.