New York City property record for 427 Knickerbocker Ave, Brooklyn, NY 11237
| Property Type | Mixed Use Commercial Office / Residential |
|---|---|
| Details | 5,967 sqft · built 1931 |
| Lot Size | 0.057 acres (2,500 sqft) |
| Owner | Company Name on File |
| Tax Bill | $47,868 (2025) |
| Deeds & Mortgages | Jan 2023 Mortgage May 2017 Sale & Line of Credit |
| APN | 03279-0002 |
| Primary APN | 03279-0002 |
|---|---|
| Alternative APNs |
|
| Units | 14 Units |
|---|---|
| Stories | 3 Stories |
| Building Area | 5,967 sqft Gross Area |
| 1st Floor Area | 1,425 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 | 3-03279-0002 |
|---|---|
| Street Address | 427 KNICKERBOCKER AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11237-6812 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Mixed Use Commercial Office / Residential |
| Local Zoning Code | C4-3 |
| Legal Block | 3279 |
| Legal Lot Number | 2 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 43100 |
Source: New York City assessment roll, APN 03279-0002, as of 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 | Company Name on File |
|---|---|
| Mailing Address | 550 FASHION AVE, 15, NEW YORK, NY 10018-3250 |
| Owner Type | Company |
| Vesting | Company |
| Date | Document |
|---|---|
| Jan 17, 2023 | Deed of Trust, Mortgage FLAGSTAR BANK, N.A. |
| May 19, 2017 | Trustee's Deed, Transfer · Line of Credit ISRAEL DISCOUNT BK/NY |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 427 KNICKERBOCKER AVE, BROOKLYN, NY 11237-6812 |
| Transaction Type | Mortgage |
| Record Updated | Dec 01, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000015253 |
|---|---|
| Date | Jan 17, 2023 |
| Instrument | 2023000015253 |
| Name | FLAGSTAR BANK, N.A. |
|---|---|
| Address | 102 DUFFY AVE, HICKSVILLE, NY 11801 |
| Amount | Amount Recorded |
|---|
| Document Type | Trustee's Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | May 19, 2017 |
| Property Address | 427 KNICKERBOCKER AVE, BROOKLYN, NY 11237-6812 |
| Document Number | 0000190291 |
| Instrument Date | May 12, 2017 |
| Instrument | 190291 |
| Transaction Type | Transfer |
| Record Updated | Jun 20, 2017 |
| Title Company | ROYAL ABSTRACT/NY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $24,000.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 7 PENN PLZ #1600 NEW YORK NY 100013976, 1600, NEW YORK, NY 10001-3976 |
| Document Number | 196052 |
|---|---|
| Date | May 19, 2017 |
| Instrument | 196052 |
| Name | ISRAEL DISCOUNT BK/NY |
|---|---|
| Type | Bank |
| Address | 511 5TH AVE, NEW YORK, NY 10017-4903 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: New York City assessment roll as of 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 and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $433,350 (+11.2%) Land $84,600 Building $348,750 | $963,000 (+11.2%) Land $188,000 Building $775,000 | |
| 2025 | $47,868.00 (+17.6%) | ||
| 2023 | $40,704.00 | $389,700 Land $84,600 Building $305,100 | $866,000 Land $188,000 Building $678,000 |
Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360470431002, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 4 (1980–1984) |
| Most Recent Claim | Jun 1984 · rainfall accumulation |
| 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, 1,683 locations within half a mile, 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 |
| Optimum Communications Cable · Fiber in parts of the area | 940 / 35 |
May also be available: Starry, T-Mobile USA, Xchange Telecom.
Source: EPA Safe Drinking Water Information System, water system NY7003493, 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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