New York City property record for 421 Union Ave, Brooklyn, NY 11211
| Property Type | Cooperative Housing Block |
|---|---|
| Details | 33,848 sqft · built 2008 |
| Lot Size | 0.234 acres (10,184 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $10,226,324 (Jul 2011) |
| Tax Bill | $8,606 (2025) |
| Deeds & Mortgages | May 2022 Mortgage May 2017 Mortgage + 1 more |
| APN | 02372-0005 |
| Primary APN | 02372-0005 |
|---|---|
| Alternative APNs |
|
| Units | 58 Units |
|---|---|
| Stories | 6 Stories |
| Building Area | 33,848 sqft Living Area |
| Year Built | Built 2008 |
|---|---|
| Effective Year Built | Effective 2008 |
| Lot Area | 10,184 sqft (0.234 acres) |
| Lot Dimensions | 140 ft deep x 103 ft wide |
| Account Number | 3-02372-0005 |
|---|---|
| Street Address | 421 UNION AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11211 |
| Property Category | Residential |
| Property Type | Residential > Cooperative > Cooperative Housing Block |
| Local Zoning Code | M12R6A |
| Legal Block | 2372 |
| Legal Lot Number | 5 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 51300 |
Source: New York City records · APN 02372-0005
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 | 2 Company Names on File |
|---|---|
| Mailing Address | 545 BROADWAY, BROOKLYN, NY 11206-3050 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| May 10, 2022 | Deed of Trust, Mortgage AMALGAMATED BANK |
| May 11, 2017 | Deed of Trust, Mortgage · Commercial Mortgage AMALGAMATED BANK |
| May 11, 2017 | Loan Modification, Consolidation and Extension, Mortgage · Line of Credit AMALGAMATED BK |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 14, 2011 · Amount on Record |
| Deed Sale | Jul 14, 2011 · Amount on Record |
| Prior Sale | Nov 05, 1999 · Amount on Record |
| Deed Document Number | 2011249814 |
| Prior Transfer Date | Jun 02, 2006 |
| Prior Transfer Doc | 60801756001 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 421 UNION AVE, BROOKLYN, NY 11211 |
| Transaction Type | Mortgage |
| Record Updated | May 17, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000194231 |
|---|---|
| Date | May 10, 2022 |
| Instrument | 2022000194231 |
| Name | AMALGAMATED BANK |
|---|---|
| Address | 275 7TH AVE, NEW YORK, NY 10001 |
| Amount | Amount Recorded |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 421 UNION AVE, BROOKLYN, NY 11211 |
| Transaction Type | Mortgage |
| Record Updated | Mar 04, 2021 |
| Name | Verified Name |
|---|---|
| Address | 545 BROADWAY 4TH 4TH, 44, BROOKLYN, NY 11206-3050 |
| Document Number | 0000178853 |
|---|---|
| Date | May 11, 2017 |
| Instrument | 2017000178853 |
| Name | AMALGAMATED BANK |
|---|---|
| Type | Bank |
| Address | 275 7TH AVE FL 14, NEW YORK, NY 10001 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Loan Modification, Consolidation and Extension |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | May 11, 2017 |
| Property Address | 421 UNION AVE, BROOKLYN, NY 11211 |
| Instrument Date | May 01, 2017 |
| Instrument | 178854 |
| Transaction Type | Mortgage |
| Record Updated | Jan 14, 2020 |
| Title Company | AFFILIATED ABSTRACT INC |
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 545 BROADWAY #4TH BROOKLYN NY 112063050, 4TH, BROOKLYN, NY 11206-3050 |
| Document Number | 0000178854 |
|---|---|
| Date | May 11, 2017 |
| Instrument | 178854 |
| Name | AMALGAMATED BK |
|---|---|
| Type | Bank |
| Address | 275 7TH AVE # 14TH, NEW YORK, NY 10001-6708 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: New York City records · Assessment roll updated May 4, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | New York |
| County | Kings County |
| Municipality | New York City |
| Unified School District | New York City Department Of Education (PK - 12) |
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 | $3,653,550 (-2.12%) Land $77,850 Building $3,575,700 | $8,119,000 (-2.12%) Land $173,000 Building $7,946,000 | |
| 2025 | $8,606.00 (-0.01%) | $3,732,750 (+3.65%) Land $77,850 Building $3,654,900 | $8,295,000 (+3.65%) Land $173,000 Building $8,122,000 |
| 2024 | $8,607.00 | ||
| 2023 | $8,607.00 Additional exemption filed | $3,601,350 Land $77,850 Building $3,523,500 | $8,003,000 Land $173,000 Building $7,830,000 |
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
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 43 units insured incl. 38 condo units |
| Nearby Flood Claims | 4 (1980–2023) |
| Claims Outside the SFHA | 3 of 4 |
| Most Recent Claim | Sep 2023 · Severe Storm And Flooding |
| Claims by Event |
|
| 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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| 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 USA Fixed Wireless | 100 / 20 |
May also be available: Optimum Communications, Starry, Xchange Telecom.
Based on FCC filings for 1,546 locations within half a mile of this property.
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 |
| 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.
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