OpenViolations
/

451 Classon Avenue

BrooklynBIN 3056519
2 open Class C$28,750.00 recorded as due
Export CSV
OverviewHealth scoreTimelineFinesOwner
Open Class C
2
Immediately hazardous
Open Class B
6
Hazardous
Open Class A
0
Non-hazardous
Fines due
$28,750.00
Balance on OATH/ECB summonses
Permits on file
2
DOB permit records
Last activity
Jan 9, 2026
ECB/OATH record

Building health score

A composite of public indicators. Every input is a public record. See the full methodology.

C
Health score · Jul 29, 2026
Scored from all 27 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 2
Open Class B violations
Hazardous
This building 6
Heat & hot water records
Violations and complaints, last 24 months
This building 0
Unpaid penalties
OATH/ECB summonses with balance due
This building $28,750
Bedbug filings with infestations
Annual LL69 filings on record
This building 0
Tenant litigation
Open HP actions in Housing Court
This building 0
Active vacate order
HPD or FDNY order to vacate, still in effect
This building No

Unified timeline

Every record from every agency, interleaved. 27 records on file.

Download this timeline (CSV) →
Jan 9, 2026
Dec 30, 2025
Nov 10, 2025
Aug 31, 2025
Aug 28, 2025
Dec 30, 2024
Nov 4, 2023
May 9, 2023
May 9, 2023
May 9, 2023
Aug 1, 2022
Aug 1, 2022
Jun 30, 2022
Mar 24, 2022
Mar 21, 2022
Mar 18, 2022
Mar 18, 2022
Mar 18, 2022
Aug 19, 2018
Feb 23, 2018
Jun 12, 2017
Oct 8, 2015
Feb 18, 2015
Jan 3, 2003
Sep 4, 2002
Jun 28, 1991
May 22, 1991

OATH / ECB summonses & fines

$28,750.00 is recorded as due across the 6 summonses below, out of $33,500.00 in penalties imposed. The city’s published records do not show whether a penalty was paid, reduced, or written off.

OATH and ECB summonses for 451 Classon Avenue
1741959Jan 9, 2026FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MATTER. NOTED: FACADE AMar 18, 2026IN VIOLATION
1741757Nov 10, 2025FAILURE TO MAINTAIN BUILDING IN A CODE-COMPLIANT MANNER. ATOI, I OBSERMar 18, 2026IN VIOLATION
1389516May 9, 2023FAILURE TO MAINTAIN BUILDING WALL(S) OR APPURTENANCES; NOTED: OBSERVEDJul 19, 2023DEFAULT$12,500.00
1405641Aug 1, 2022WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS. AT TIME OF IDec 7, 2022DEFAULT$6,250.00
1405621Aug 1, 2022FAILURE TO SAFEGUARD ALL PERSON AND PROPERTY. AT TIME OF INSPECTION, 4Dec 7, 2022DEFAULT$10,000.00
754721Jun 28, 1991WORK WITHOUT A PERMIT: IN THAT ALTERATION OF ENTIRE BUILDING IN CELLARAug 12, 1991WRITTEN OFF