8423 3rd Ave, Brooklyn, NY 11209 Property Records

New York City property record for 8423 3rd Ave, Brooklyn, NY 11209

Property Summary

Property Type	Mixed Use Commercial Office / Residential
Details	6,512 sqft · built 1923
Lot Size	0.04 acres (1,760 sqft)
Owner	Company Name on Record
Last Sale	$560,000 (Jan 1996)
Tax Bill	$51,468 (2025)
Deeds & Mortgages	Jul 2017 Mortgage Jul 2017 Loan Modification
APN	`06025-0001`

Property Details

APN / Parcel Number

Primary APN	`06025-0001`
Alternative APNs	`1806060250001` `3-06025-0001`

Interior

Units	18 Units
Stories	4 Stories
Building Area	6,512 sqft Gross Area
1st Floor Area	1,584 sqft

Exterior

Year Built	Built 1923
Effective Year Built	Effective 1923
Lot Area	1,760 sqft (0.04 acres)
Lot Dimensions	80 ft deep x 22 ft wide
View / Lot	Corner

Location & Zoning

Account Number	3-06025-0001
Street Address	8423 3RD AVE
City	BROOKLYN
State	NY
Zip	11209-4601
Property Category	Commercial
Property Type	Commercial > Office > Mixed Use Commercial Office / Residential
Local Zoning Code	R6B
Legal Block	6025
Legal Lot Number	1
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	1
Census Block	1002
Census Tract	6200

Owner

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

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

Owner of Record	Company Name on Record
Mailing Address	8423 3RD AVE, BROOKLYN, NY 11209-4601
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Date	Document
Jul 10, 2017	Deed of Trust, Mortgage · Commercial Mortgage SANTANDER BANK, N A
Jul 10, 2017	Loan Modification, Consolidation and Extension, Mortgage SANTANDER BK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 26, 1996 · Amount on Record
Deed Sale	Jan 26, 1996 · Amount on Record
Deed Book / Page	3643 / 0488
Record Updated	Jun 8, 2026

July 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	8423 3RD AVE, BROOKLYN, NY 11209-4601
Transaction Type	Mortgage
Record Updated	Feb 7, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	8423 3RD AVE, BROOKLYN, NY 11209-4601

Mortgage

Document Number	0000251734
Date	Jul 10, 2017
Instrument	2017000251734

Lender

Name	SANTANDER BANK, N A
Address	200 LIBERTY ST # 1717, NEW YORK, NY 10281

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

July 2017: Loan Modification, Consolidation and Extension, Mortgage

Document Type	Loan Modification, Consolidation and Extension
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Jul 10, 2017
Property Address	8423 3RD AVE, BROOKLYN, NY 11209-4601
Instrument Date	Jun 19, 2017
Instrument	251735
Transaction Type	Mortgage
Record Updated	Jan 14, 2020
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE INSURANCE COMPANY

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	8423 3RD AVE BROOKLYN NY 112094601, BROOKLYN, NY 11209-4601

Mortgage

Document Number	0000251735
Date	Jul 10, 2017
Instrument	251735

Lender

Name	SANTANDER BK NA
Type	Bank
Address	200 LIBERTY ST # 17TH, NEW YORK, NY 10281-1003

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		$494,100 (-18.97%) Land $18,000 Building $476,100	$1,098,000 (-18.97%) Land $40,000 Building $1,058,000
2025	$51,468.00 (-4.5%)
2023	$53,892.00	$609,750 Land $18,000 Building $591,750	$1,355,000 Land $40,000 Building $1,315,000

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

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 1,425 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: Optimum.

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