New York City property record for 405 Union St, Brooklyn, NY 11231
| Property Type | Triplex |
|---|---|
| Details | 3,094 sqft · built 1899 |
| Lot Size | 0.04 acres (1,740 sqft) |
| Owner | Company Name on Record |
| Last Sale | $4,275,000 (Sep 2024) |
| Tax Bill | $9,499 (2025) |
| Deeds & Mortgages | Nov 2021 Sale & Mortgage |
| APN | 00429-0049 |
| Primary APN | 00429-0049 |
|---|---|
| Alternative APNs |
|
| Units | 3 Units |
|---|---|
| Stories | 3 Stories |
| Building Area | 3,094 sqft Living Area |
| 1st Floor Area | 773 sqft |
| Year Built | Built 1899 |
|---|---|
| Effective Year Built | Effective 1899 |
| Architectural Style | Triplex |
| Lot Area | 1,740 sqft (0.04 acres) |
| Lot Dimensions | 90 ft deep x 19.3 ft wide |
| Account Number | 3-00429-0049 |
|---|---|
| Street Address | 405 UNION ST |
| City | BROOKLYN |
| State | NY |
| Zip | 11231-4911 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | R6B |
| Legal Block | 429 |
| Legal Lot Number | 49 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 7500 |
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 | 405 UNION ST, BROOKLYN, NY 11231-4911 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 27, 2024 · Amount on Record |
| Deed Sale | Sep 27, 2024 · Amount on Record |
| Prior Sale | Nov 30, 2021 · Amount on Record |
| Deed Document Number | 2024252866 |
| Prior Transfer Date | Mar 13, 2014 |
| Prior Transfer Doc | 0000297579 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Nov 30, 2021 |
| Property Address | 405 UNION ST, BROOKLYN, NY 11231-4911 |
| Document Number | 0000470326 |
| Instrument Date | Nov 15, 2021 |
| Instrument | 2021000470326 |
| Transaction Type | Transfer |
| Record Updated | Dec 7, 2021 |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 90 MAIN STN, 90, NARROWSBURG, NY 12764 |
| Name | Verified Name |
|---|---|
| Address | 405 UNION ST, BROOKLYN, NY 11231-4911 |
| Document Number | 0000470327 |
|---|---|
| Date | Nov 30, 2021 |
| Instrument | 2021000470327 |
| Name | MERS |
|---|
| Amount | Amount Recorded |
|---|
Source: New York City assessment roll, as of May 4, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Kings County |
| Municipality | New York City |
| Unified School District | New York City Department Of Education (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $233,580 (+8.38%) Land $31,140 Building $202,440 | $3,893,000 (+8.38%) Land $519,000 Building $3,374,000 | |
| 2025 | $9,499.00 (+6.46%) | ||
| 2023 | $8,923.00 | $215,520 Land $31,140 Building $184,380 | $3,592,000 Land $519,000 Building $3,073,000 |
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.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Flood Insurance Cost | Premium on Record median of 12 policies |
| Nearby Flood Policies | 12 in force |
| Nearby Flood Claims | 5 (2012–2026) |
| Claims Outside the SFHA | 4 of 5 |
| Most Recent Claim | Aug 2026 · rainfall accumulation |
| Claims by Event |
|
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: 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.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 1,820 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: Skywire Networks, Starry.
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