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603 Knickerbocker Ave, Brooklyn, NY 11221 Property Records

New York City property record for 603 Knickerbocker Ave, Brooklyn, NY 11221 · Last verified May 2026

Property Summary

Property TypeDuplex
Details2,436 sqft · built 2008
Lot Size0.032 acres (1,372 sqft)
OwnerCompany Name on File
Last Sale$1,075,000 (Jan 2020)
Tax Bill$8,553 (2025)
Deeds & MortgagesAug 2021 Sale
Jan 2020 Sale & Mortgage
+ 1 more
APN03362-0129

Property Details

APN / Parcel Number

Primary APN03362-0129
Alternative APNs
  • 1106033620129
  • 3-03362-0129

Interior

Units2 Units
Stories3 Stories
Building Area2,436 sqft Living Area
1st Floor Area820 sqft

Exterior

Year BuiltBuilt 2008
Effective Year BuiltEffective 2008
Architectural StyleDuplex Single
Construction TypeBrick
Lot Area1,372 sqft (0.032 acres)
Lot Dimensions68.6 ft deep x 20 ft wide

Location & Zoning

Account Number3-03362-0129
Street Address603 KNICKERBOCKER AVE
CityBROOKLYN
StateNY
Zip11221-8124
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Legal Block3362
Legal Lot Number129
JurisdictionKINGS (BROOKLYN) NY
Township / Civil DivisionBROOKLYN
Census Block Group3
Census Block3000
Census Tract43500

Owner

Source: New York City records · APN 03362-0129

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 RecordCompany Name on File
Mailing Address603 KNICKERBOCKER AVE, BROOKLYN, NY 11221-8124
Owner TypeCompany

Deeds, Mortgages & Sale History

DateDocument
Aug 25, 2021Deed, Transfer
Jan 23, 2020Deed, Transfer
CITIZENS BANK N.A.
Oct 12, 2017Trustee's Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJan 23, 2020 · Amount on Record
Deed SaleJan 23, 2020 · Amount on Record
Prior SaleOct 12, 2017 · Amount on Record
Deed Document Number202028340
Record UpdatedJun 08, 2026

August 2021: Deed, Transfer

Document TypeDeed
JurisdictionKINGS (BROOKLYN) NY
Recording DateAug 25, 2021
Property Address603 KNICKERBOCKER AVE, BROOKLYN, NY 11221-8124
Document Number0000336519
Instrument DateAug 17, 2020
Instrument2021000336519
Transaction TypeTransfer
Record UpdatedAug 31, 2021

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address603 KNICKERBOCKER AVE, 603, BROOKLYN, NY 11221-8124

Transferred To (Grantee/Buyer)

NameVerified Name
Address603 KNICKERBOCKER AVE, BROOKLYN, NY 11221-8124

January 2020: Deed, Transfer

Document TypeDeed
JurisdictionKINGS (BROOKLYN) NY
Recording DateJan 23, 2020
Property Address603 KNICKERBOCKER AVE, BROOKLYN, NY 11221-8124
Document Number0000028340
Instrument DateJan 17, 2020
Instrument2020000028340
Transaction TypeTransfer
Record UpdatedJul 09, 2021

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Notice of Foreclosure Sale
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address232 BROADWAY, 232, BROOKLYN, NY 11211-6250

Transferred To (Grantee/Buyer)

NameVerified Name
Address315 E 72ND ST APT 6B, 6B, NEW YORK, NY 10021-4627

Mortgage

Document Number0000028341
DateJan 23, 2020
Instrument2020000028341
Lender
NameCITIZENS BANK N.A.
Agreement
AmountAmount Recorded

October 2017: Trustee's Deed, Transfer

Document TypeTrustee's Deed
JurisdictionKINGS (BROOKLYN) NY
Recording DateOct 12, 2017
Property Address603 KNICKERBOCKER AVE, BROOKLYN, NY 11221-8124
Document Number0000376858
Instrument DateSep 29, 2017
Instrument376858
Transaction TypeTransfer
Record UpdatedOct 17, 2017
Title CompanyATTORNEY ONLY

Transaction

AmountAmount Recorded
Tax$2.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address603 KNICKERBOCKER AVE BROOKLYN NY 112214741, BROOKLYN, NY 11221-4741

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateNew York
CountyKings County
MunicipalityNew York City
Unified School DistrictNew 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.

YearTax BillAssessed ValueAssessed Market Value
2026$106,860 (+26.49%) Land $9,720 Building $97,140$1,781,000 (+26.49%) Land $162,000 Building $1,619,000
2025$8,553.00 (+6%)$84,480 (-9.51%) Land $9,720 Building $74,760$1,408,000 (-9.51%) Land $162,000 Building $1,246,000
2024$8,069.00 (+5.45%)
2023$7,652.00$93,360 Land $9,720 Building $83,640$1,556,000 Land $162,000 Building $1,394,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360470435003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneNot on file
Nearby Flood Policies3 in force
Nearby Flood Claims1 (2026)
Claims Outside the SFHA1 of 1
Most Recent ClaimMay 2026, rainfall accumulation

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond 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, availability as of December 31, 2025 · Published October 2026 · based on 1,574 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
VerizonFiber2,300 / 2,300
Optimum CommunicationsCable940 / 35
T-Mobile USAFixed Wireless100 / 20
StarlinkSatellite (low-earth orbit)280 / 30

May also be available at this address: Optimum Communications, Verizon, Spectrum, Starry. Availability varies by address; speeds are provider-advertised maximums, not measured.

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