New York City property record for 645 Knickerbocker Ave, Brooklyn, NY 11221
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 3,898 sqft · built 1915 |
| Lot Size | 0.04 acres (1,760 sqft) |
| Owner | Company Name on Record |
| Last Sale | $950,000 (Jun 2017) |
| Tax Bill | $7,027 (2025) |
| Deeds & Mortgages | Feb 2020 Mortgage Jun 2017 Sale |
| APN | 03365-0108 |
| Primary APN | 03365-0108 |
|---|---|
| Alternative APNs |
|
| Units | 5 Units |
|---|---|
| Stories | 4 Stories |
| Building Area | 3,898 sqft Living Area |
| 1st Floor Area | 1,000 sqft |
| Year Built | Built 1915 |
|---|---|
| Effective Year Built | Effective 1915 |
| Architectural Style | Multi-Family |
| Construction Type | Brick |
| Lot Area | 1,760 sqft (0.04 acres) |
| Lot Dimensions | 88.4 ft deep x 20 ft wide |
| Account Number | 3-03365-0108 |
|---|---|
| Street Address | 645 KNICKERBOCKER AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11221-7854 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Local Zoning Code | R6 |
| Legal Block | 3365 |
| Legal Lot Number | 108 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 43500 |
Source: New York City records, as of August 13, 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 | 401 E 83RD ST, 3B, NEW YORK, NY 10028-6191 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Feb 5, 2020 | Deed of Trust, Mortgage KEARNY BANK |
| Jun 19, 2017 | Grant Deed, Transfer MILLENNIUM ABSTRACT COMPANY, MILLENNIUM ABSTRACT CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 19, 2017 · Amount on Record |
| Deed Sale | Jun 19, 2017 · Amount on Record |
| Prior Sale | Jul 14, 2016 · Amount on Record |
| Deed Document Number | 2017224585 |
| Prior Transfer Date | Jun 26, 2004 |
| Prior Transfer Doc | 0000557129 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 645 KNICKERBOCKER AVE, BROOKLYN, NY 11221-7854 |
| Transaction Type | Mortgage |
| Record Updated | Aug 19, 2022 |
| Name | Verified Name |
|---|---|
| Address | 401 E 83RD ST 3B, 3B, NEW YORK, NY 10028-6191 |
| Document Number | 0000047397 |
|---|---|
| Date | Feb 5, 2020 |
| Instrument | 2020000047397 |
| Name | KEARNY BANK |
|---|---|
| Address | 120 PASSAIC AVE, FAIRFIELD, NJ 07004 |
| Amount | Amount Recorded |
|---|
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Jun 19, 2017 |
| Property Address | 645 KNICKERBOCKER AVE, BROOKLYN, NY 11221-7854 |
| Document Number | 0000224585 |
| Instrument Date | Jun 13, 2017 |
| Instrument | 224585 |
| Transaction Type | Transfer |
| Record Updated | Jun 26, 2017 |
| Title Company | MILLENNIUM ABSTRACT COMPANY, MILLENNIUM ABSTRACT CO |
| Amount | Amount Recorded |
|---|---|
| Tax | $3,800.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 401 E 83RD ST #3B NEW YORK NY 100286191, 3B, NEW YORK, NY 10028-6191 |
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 | $482,850 (+68.98%) Land $83,700 Building $399,150 | $1,073,000 (+68.98%) Land $186,000 Building $887,000 | |
| 2025 | $7,027.00 (+16.63%) | ||
| 2023 | $6,025.00 | $285,750 Land $83,700 Building $202,050 | $635,000 Land $186,000 Building $449,000 |
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 |
|---|---|
| Nearby Flood Policies | 1 in force |
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 1,574 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Spectrum, Starry.
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