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Brooklyn

643 Classon Ave

Brooklyn, NY 11238Company-ownedBBL 3011340002BIN 3000000
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Updated Aug 1, 2026 · 16 sources

Floors1
ClassE1
Market Value$432K

643 CLASSON AVE is a property located at 643 CLASSON AVE, Brooklyn, NY 11238. The building has 1 floor. The assessed market value is $432K. It last sold for $4.7M on Dec 22, 2021. Public records list the property as company-owned. There are 9 building permits on record (3 active). 3 docketed judgments carrying $7,800 in open balances are on record with OATH. Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

46records on file

The lot at 643 Classon Ave rises 1 story over Kings. It is carried on the public rolls at a market value of $432K, and assessed for tax at $194K. In the 56 years its record reaches back, the lot has drawn 46 separate government filings.

The documentary life of the address leans hard toward permit: 9 of its 46 records, fully 20%, fall under that one heading. Enforcement (9) and lien (9) trail well behind. No violations stand open against it today.

The pace is anything but even. The early decades pass in near silence; the filings cluster heavily in recent years, peaking in 2022.

Read together — 20% permit, 56 years of accumulation, a parcel of Kings — these scattered records compose a portrait of the address that no single page sets out to draw.

$432K of Kings, written across 46 government filings.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
updated

Property Details

Address643 CLASSON AVE, Brooklyn, NY 11238
E1
Year BuiltN/A
Floors1
Total UnitsN/A
Building AreaN/A
Lot SizeN/A
3011340002
3000000
OwnershipCompany-owned

Assessment & Sales

$432K
$194K
$18K
$4.7M
Last Sale DateDec 22, 2021

Building Permits

9 on record · 3 active
DemolitionDOB Legacy
SIGNED OFF
Filed Jun 22, 2022Job #322104307-01
View this permit's full record & inspection history →
DemolitionDOB Legacy
SIGNED OFF
Filed Jun 22, 2022Job #322104307-02
View this permit's full record & inspection history →
DemolitionDOB Legacy
ISSUED
Filed May 12, 2022Job #322104307-01-01
View this permit's full record & inspection history →
Construction EquipmentDOB Legacy
ISSUED
Filed May 11, 2022Job #322104307-02-01

EQ

View this permit's full record & inspection history →
Asbestos AbatementDEP
CLOSED
Filed Mar 29, 2022Job #TRU0541BK22
View this permit's full record & inspection history →

+ 4 more permits — view full report

Violations

none on record
Open judgment balance — docketed OATH judgments$7,800
Judgments · 3 docketed
OATH summonsJUDGMENT DOCKETED
Docketed Dec 31, 2022Ticket #051006161X
FAILED TO CONDUCT AIR SAMPLING DURING ABATEMENT AS REQUIRED
OATH summonsJUDGMENT DOCKETED
Docketed Dec 31, 2022Balance $1,300Ticket #051006160Y
UTILIZED IMPROPERLY LOCATED AIR SAMPLERS
OATH summonsJUDGMENT DOCKETED
Docketed Mar 31, 2023Balance $6,500Ticket #051006162H
FAILED TO USE HEPA FILTERS ON POWER TOOLS USED IN REMOVAL

No violations found in local records.

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Frequently Asked Questions

Are there building permits at 643 CLASSON AVE, Brooklyn?

Yes. 643 CLASSON AVE, Brooklyn, NY 11238 has 9 building permits on record, with 3 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a Demolition (SIGNED OFF) filed Jun 22, 2022.

Does 643 CLASSON AVE, Brooklyn have violations?

No violations were found in local records for 643 CLASSON AVE, Brooklyn, NY 11238. Violation data is sourced from DOB (safety and legacy), HPD (housing), and ECB (environmental control).

Does 643 CLASSON AVE, Brooklyn have docketed judgments?

Yes. 643 CLASSON AVE, Brooklyn, NY 11238 has 3 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $7,800. A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.

What is the property tax assessment for 643 CLASSON AVE?

643 CLASSON AVE, Brooklyn, NY 11238 has an assessed market value of $432K and a total assessed value of $194K (land: $18K). Assessment data is from the NYC Department of Finance (DOF).

When was 643 CLASSON AVE last sold?

643 CLASSON AVE, Brooklyn, NY 11238 last sold for $4.7M on Dec 22, 2021. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

Who owns 643 CLASSON AVE?

643 CLASSON AVE, Brooklyn, NY 11238 is company-owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 643 CLASSON AVE?

Search 643 CLASSON AVE on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.

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643 CLASSON AVE, Brooklyn, NY 11238 — Property Records, Permits, Violations, Tax & Zoning | RegWatch