398 Knickerbocker Ave, Brooklyn, NY 11237 Property Records

New York City property record for 398 Knickerbocker Ave, Brooklyn, NY 11237

Property Summary

Property Type	Mixed Use Commercial Office / Residential
Details	4,175 sqft · built 1931
Lot Size	0.057 acres (2,500 sqft)
Owner	Company Name on File
Last Sale	$600,000 (Dec 1997)
Tax Bill	$12,234 (2025)
APN	`03268-0040`

Property Details

APN / Parcel Number

Primary APN	`03268-0040`
Alternative APNs	`1104032680040` `3-03268-0040`

Interior

Units	4 Units
Stories	3 Stories
Building Area	4,175 sqft Gross Area
1st Floor Area	1,400 sqft

Exterior

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

Location & Zoning

Account Number	3-03268-0040
Street Address	398 KNICKERBOCKER AVE
City	BROOKLYN
State	NY
Zip	11237-4102
Property Category	Commercial
Property Type	Commercial > Office > Mixed Use Commercial Office / Residential
Local Zoning Code	C4-3
Legal Block	3268
Legal Lot Number	40
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	3
Census Block	3001
Census Tract	43100

Owner

Source: New York City records · APN 03268-0040

Assessment roll updated 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	437 KNICKERBOCKER AVE, BROOKLYN, NY 11237-4508
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 11, 1997 · Amount on Record
Deed Sale	Dec 11, 1997 · Amount on Record
Deed Book / Page	4080 / 0605
Record Updated	Jun 08, 2026

Tax Assessment & Valuation

Source: New York City records · Assessment roll updated May 4, 2026 · Last verified May 2026

Property Jurisdictions

Type	Name
State	New York
County	Kings County
Municipality	New York City
Unified School District	New York City Department Of Education (PK - 12)

Tax Bill & Assessment History

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$148,440 (+42.84%) Land $15,000 Building $133,440	$2,474,000 (+42.84%) Land $250,000 Building $2,224,000
2025	$12,234.00 (+0.76%)
2023	$12,142.00	$103,920 Land $15,000 Building $88,920	$1,732,000 Land $250,000 Building $1,482,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360470431003, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file
Nearby Flood Policies	1 in force
Nearby Flood Claims	3 (2015–2021)
Claims Outside the SFHA	3 of 3
Most Recent Claim	Sep 2021 · Remnants Of Hurricane Ida

Wildfire

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.

Internet Providers

Source: FCC Broadband Data Collection 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.

Based on FCC filings for 1,683 locations within half a mile of this property.

Drinking Water

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

Violations Reported to EPA

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.