New York City property record for 345 Knickerbocker Ave, Brooklyn, NY 11237
| Property Type | Public Hospital |
|---|---|
| Details | 11,400 sqft · built 1931 |
| Lot Size | 0.121 acres (5,250 sqft) |
| Owner | Company Name on File |
| Last Sale | $2,000,000 (Sep 2012) |
| Tax Bill | $72,033 (2025) |
| APN | 03247-0006 |
| Primary APN | 03247-0006 |
|---|---|
| Alternative APNs |
|
| Units | 6 Units |
|---|---|
| Stories | 3 Stories |
| Building Area | 11,400 sqft Gross Area |
| 1st Floor Area | 2,850 sqft |
| Office | 10,750 sqft |
| Year Built | Built 1931 |
|---|---|
| Effective Year Built | Effective 1994 |
| Lot Area | 5,250 sqft (0.121 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Account Number | 3-03247-0006 |
|---|---|
| Street Address | 345 KNICKERBOCKER AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11237 |
| Property Category | Public Works |
| Property Type | Public Works > Public Hospital |
| Local Zoning Code | R6 |
| Legal Block | 3247 |
| Legal Lot Number | 6 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 42900 |
Source: New York City assessment roll, 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 File |
|---|---|
| Mailing Address | 1133 E 7TH ST, BROOKLYN, NY 11230-4007 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 6, 2012 · Amount on Record |
| Deed Sale | Sep 6, 2012 · Amount on Record |
| Deed Document Number | 2012351185 |
| Prior Transfer Date | Jul 31, 2012 |
| Prior Transfer Doc | 0000351184 |
| Record Updated | Jun 8, 2026 |
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 | $729,900 (+6.08%) Land $66,150 Building $663,750 | $1,622,000 (+6.08%) Land $147,000 Building $1,475,000 | |
| 2025 | $72,033.00 (+0.67%) | ||
| 2023 | $71,553.00 Additional exemption filed | $688,050 Land $66,150 Building $621,900 | $1,529,000 Land $147,000 Building $1,382,000 |
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
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; 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 |
|---|
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 1,683 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 |
| Optimum Communications Cable · Fiber in parts of the area | 940 / 35 |
May also be available: Starry, T-Mobile USA, Xchange Telecom.
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