6403 20th Ave, Brooklyn, NY 11204 Property Records

New York City property record for 6403 20th Ave, Brooklyn, NY 11204

Property Summary

Property Type	Mixed Use Commercial Office / Residential
Details	2,236 sqft · built 1931
Lot Size	0.041 acres (1,800 sqft)
Owner	Company Name on Record
Last Sale	$1,350,000 (Oct 2020)
Tax Bill	$8,169 (2025)
Deeds & Mortgages	Oct 2020 Sale & Mortgage
APN	`05549-0009`

Property Details

APN / Parcel Number

Primary APN	`05549-0009`
Alternative APNs	`1704055490009` `3-05549-0009`

Interior

Units	4 Units
Stories	2 Stories
Building Area	2,236 sqft Gross Area
1st Floor Area	1,118 sqft

Exterior

Year Built	Built 1931
Effective Year Built	Effective 1931
Lot Area	1,800 sqft (0.041 acres)
Lot Dimensions	90 ft deep x 20.3 ft wide

Location & Zoning

Account Number	3-05549-0009
Street Address	6403 20TH AVE
City	BROOKLYN
State	NY
Zip	11204-3905
Property Category	Commercial
Property Type	Commercial > Office > Mixed Use Commercial Office / Residential
Local Zoning Code	R5
Legal Block	5549
Legal Lot Number	9
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	2
Census Block	2003
Census Tract	25400

Owner

Source: New York City records, as of May 4, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	1649 W 2ND ST, BROOKLYN, NY 11223-1623
Owner Type	Company
Vesting	Limited Liability Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 6, 2020 · Amount on Record
Deed Sale	Oct 6, 2020 · Amount on Record
Prior Sale	Apr 25, 2012
Deed Document Number	2020272821
Prior Transfer Date	Apr 7, 2000
Record Updated	Oct 29, 2026

October 2020: Deed, Transfer

Document Type	Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Oct 6, 2020
Property Address	6403 20TH AVE, BROOKLYN, NY 11204-3905
Document Number	0000272821
Instrument Date	Sep 18, 2020
Instrument	2020000272821
Transaction Type	Transfer
Record Updated	Jul 9, 2021

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
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	1825 76TH ST, 1825, BROOKLYN, NY 11214-1273

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1649 W 2ND ST, BROOKLYN, NY 11223-1623

Mortgage

Document Number	0000272822
Date	Oct 6, 2020
Instrument	2020000272822

Lender

Name	CATHAY BANK

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

Source: New York City assessment roll, as of May 4, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$80,940 (+6.98%) Land $13,740 Building $67,200	$1,349,000 (+6.98%) Land $229,000 Building $1,120,000
2025	$8,169.00 (+12.35%)
2023	$7,271.00	$75,660 Land $13,740 Building $61,920	$1,261,000 Land $229,000 Building $1,032,000

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.

Flood

Source: FEMA National Flood Hazard Layer

FEMA Flood Zone	Not on file

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

Wildfire

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	NEW YORK CITY SYSTEM serves 8,271,000 people · EPA ID NY7003493
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, 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 2,047 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	2,300 / 2,300

May also be available: Skywire Networks, Starry, T-Mobile.

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