New York City property record for 323 Knickerbocker Ave, Brooklyn, NY 11237
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 6,854 sqft · built 1931 |
| Lot Size | 0.057 acres (2,500 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $730,000 (Oct 2006) |
| Tax Bill | $56,467 (2025) |
| Deeds & Mortgages | Dec 2022 Mortgage |
| APN | 03236-0005 |
| Primary APN | 03236-0005 |
|---|---|
| Alternative APNs |
|
| Units | 14 Units |
|---|---|
| Stories | 4 Stories |
| Building Area | 6,854 sqft Gross Area |
| 1st Floor Area | 2,000 sqft |
| Year Built | Built 1931 |
|---|---|
| Effective Year Built | Effective 1931 |
| Lot Area | 2,500 sqft (0.057 acres) |
| Lot Dimensions | 100 ft deep x 25 ft wide |
| Account Number | 3-03236-0005 |
|---|---|
| Street Address | 323 KNICKERBOCKER AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11237-3594 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | R6 |
| Legal Block | 3236 |
| Legal Lot Number | 5 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 42900 |
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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 1946 CONEY ISLAND AVE, 2, BROOKLYN, NY 11223-2329 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 27, 2006 · Amount on Record |
| Deed Sale | Oct 27, 2006 · Amount on Record |
| Deed Document Number | 2006102500922001 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 323 KNICKERBOCKER AVE, BROOKLYN, NY 11237-3594 |
| Transaction Type | Mortgage |
| Record Updated | Sep 29, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000455688 |
|---|---|
| Date | Dec 20, 2022 |
| Instrument | 2022000455688 |
| Name | KEARNY BANK |
|---|---|
| Address | 120 PASSAIC AVE, FAIRFIELD, NJ 07004 |
| 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 | $558,450 (+3.24%) Land $13,500 Building $544,950 | $1,241,000 (+3.24%) Land $30,000 Building $1,211,000 | |
| 2025 | $56,467.00 (+7.98%) | ||
| 2023 | $52,292.00 (+5.18%) | $540,900 (+6.47%) Land $13,500 Building $527,400 | $1,202,000 (+6.47%) Land $30,000 Building $1,172,000 |
| 2022 | $49,719.00 | $508,050 Land $13,500 Building $494,550 | $1,129,000 Land $30,000 Building $1,099,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 49 units insured incl. 49 condo units |
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 1,683 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 Cable · Fiber in parts of the area | 940 / 35 |
May also be available: Skywire Networks, Starry, T-Mobile.
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