643 Williams Ave, Brooklyn, NY 11207 Property Records

New York City property record for 643 Williams Ave, Brooklyn, NY 11207 · Last verified May 2026

Property Summary

Property TypeSingle Family Home
Details1,300 sqft · built 2000
Lot Size0.059 acres (2,556 sqft)
OwnerIndividual Name on File
Last Sale$102,000 (Jan 2001)
Tax Bill$1,899 (2025)
Deeds & MortgagesJun 2018 Line of Credit
APN04294-0126

Property Details

APN / Parcel Number

Primary APN04294-0126
Alternative APNs
  • 1401042940126
  • 3-04294-0126

Interior

Stories2 Stories
Building Area1,300 sqft Living Area
1st Floor Area626 sqft

Exterior

Year BuiltBuilt 2000
Effective Year BuiltEffective 2000
Lot Area2,556 sqft (0.059 acres)
Lot Dimensions142 ft deep x 18 ft wide

Location & Zoning

Account Number3-04294-0126
Street Address643 WILLIAMS AVE
CityBROOKLYN
StateNY
Zip11207-6728
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal Block4294
Legal Lot Number126
JurisdictionKINGS (BROOKLYN) NY
Township / Civil DivisionBROOKLYN
Census Block Group4
Census Block4004
Census Tract113000

Owner

Source: New York City records · APN 04294-0126

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 RecordIndividual Name on File
Mailing Address643 WILLIAMS AVE, BROOKLYN, NY 11207-6728
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJan 19, 2001 · Amount on Record
Deed SaleJan 19, 2001 · Amount on Record
Deed Book / Page5054 / 1136
Record UpdatedJun 08, 2026

June 2018: Grant Deed, Construction Loan

Document TypeGrant Deed
JurisdictionKINGS (BROOKLYN) NY
Recording DateJun 25, 2018
Property Address643 WILLIAMS AVE, BROOKLYN, NY 11207-6728
Document Number0000208823
Instrument DateJun 19, 2018
Instrument208823
Transaction TypeConstruction Loan
Record UpdatedAug 02, 2018
Title CompanyFIRST NATIONWIDE TITLE AGENCY LT

Transaction

Tax$0.00
Additional
  • Multiple Parcels

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address242 W 36TH ST #3RD NEW YORK NY 100187542, 3RD, NEW YORK, NY 10018-7542

Mortgage

Document Number208833
DateJun 25, 2018
Instrument208833
Lender
NameCPC FNDG SPE 1
TypeFunding / Finance Company
Address28 E 28TH ST # 9TH, NEW YORK, NY 10016-7939
Agreement
TypeLine of Credit
AmountAmount Recorded
Term24 Months
DueJun 24, 2020
Interest
Rate TypeAdjustable Rate

Mortgage

Document Number208842,
DateJun 25, 2018
Instrument208842
Lender
NameCPC FNDG SPE 1
TypeFunding / Finance Company
Address28 E 28TH ST # 9TH, NEW YORK, NY 10016-7939
Agreement
TypeLine of Credit
AmountAmount Recorded
Term24 Months
DueJun 24, 2020
Interest
Rate TypeAdjustable Rate

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$33,960 (-2.92%) Land $13,200 Building $20,760$566,000 (-2.92%) Land $220,000 Building $346,000
2025$1,899.00 (+6.57%)
2023$1,782.00 Homeowner's exemption Senior Citizen's exemption$34,980 Land $13,200 Building $21,780$583,000 Land $220,000 Building $363,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneNot on file

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 1,865 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
Optimum CommunicationsFiber8,000 / 8,000
VerizonFiber2,300 / 2,300
Optimum CommunicationsCable940 / 35

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

Mobile Coverage

5G and 4G LTE

Nearby Properties on Williams Ave

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