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420 Classon Avenue

BrooklynBIN 3394252
HPD registration valid
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OverviewHealth scoreTimelineFinesOwner
Open Class C
0
Immediately hazardous
Open Class B
16
Hazardous
Open Class A
0
Non-hazardous
Fines due
$0.00
Balance on OATH/ECB summonses
Permits on file
6
DOB permit records
Last activity
Dec 31, 2025
Bedbugs 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 84 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 0
Open Class B violations
Hazardous
This building 16
Heat & hot water records
Violations and complaints, last 24 months
This building 0
Unpaid penalties
OATH/ECB summonses with balance due
This building $0
Bedbug filings with infestations
Annual LL69 filings on record
This building 0
Tenant litigation
Open HP actions in Housing Court
This building 1
Active vacate order
HPD or FDNY order to vacate, still in effect
This building No

Unified timeline

Every record from every agency, interleaved. 84 records on file.

Download this timeline (CSV) →
Dec 31, 2025
Sep 25, 2025
Nov 27, 2024
Feb 22, 2024
Nov 22, 2023
Jun 20, 2023
Jun 20, 2023
Jun 20, 2023
Jun 20, 2023
Apr 25, 2023
Apr 25, 2023
Apr 5, 2023
Apr 27, 2022
Dec 16, 2021
Feb 24, 2021
Nov 8, 2019
Nov 8, 2019
Nov 4, 2016
Oct 8, 2015
Feb 18, 2015
Apr 17, 2013
Mar 1, 2013
Mar 1, 2013
Dec 13, 2011
Dec 13, 2011
Aug 15, 2011
Oct 24, 2010
Jan 31, 2010
Jan 1, 2009
Jul 15, 2008

OATH / ECB summonses & fines

No balance is recorded as due across the 2 summonses below, out of $2,000.00 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 420 Classon Avenue
504054Mar 5, 1997FAILURE TO MAITNAIN CREATING HAZARDOUS CONDITION NOTED A THE MASONRY EMay 19, 1997WRITTEN OFF
503849Sep 25, 1996FAILURE TO MAINTAIN BUILDING EXTERIOR DEFECT IS MISSING STEPS AT FRONTJan 13, 1997WRITTEN OFF