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504 Classon Avenue, Brooklyn

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504 Classon Avenue at a glance

504 Classon Avenue, Brooklyn has 4 open city records on file, 1 of them Class C (immediately hazardous), and no balance recorded as due on OATH/ECB summonses. The most recent record is dated Jul 16, 2026.

Open Class C
1
Immediately hazardous — click to see them
Open Class B
2
Hazardous — click to see them
Open Class A
1
Non-hazardous — click to see them
Fines due
$0.00
Balance on OATH/ECB summonses
Permits on file
2
Construction permits filed with DOB
Last activity
Jul 16, 2026
DOB record

Health score for 504 Classon Avenue

A composite of the public indicators below. How it is scored.

B
Health score · Aug 5, 2026
Scored from all 85 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 1
Open Class B violations
Hazardous
This building 2
Heat & hot water records
Violations and complaints, last 24 months
This building 3
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 0
Active vacate order
HPD or FDNY order to vacate, still in effect
This building Yes

Record timeline for 504 Classon Avenue

85 records on file, every agency interleaved. Class A, B and C are HPD’s hazard tiers: C is immediately hazardous, A and B explained here.

Download this timeline (CSV) →

OATH / ECB summonses & fines at 504 Classon Avenue

No balance is recorded as due across the 3 summonses below, out of $8,312.00 in penalties imposed. Balances are as the city publishes them; a settlement or write-off that never reached the dataset will not show here. New to these? How an OATH summons becomes a penalty, explained.

OATH and ECB summonses for 504 Classon Avenue
1671213May 17, 2021FAILURE TO MAINTAIN BLDG IN CODE COMPLIANT MANNER:AT REAR OF PREMISES Sep 29, 2021Defaulted (did not respond)
751022Nov 20, 2018WORK WITHOUT A PERMIT. NOTED: AT EXPOSURE 1 AND 2 ERECTED ON SIDE OF Feb 25, 2019Defaulted (did not respond)
948519Jun 17, 2006WORK W/O A PERMIT.WORK NOTED:OVER THE GRILL EXHAUST SYSTEM AT NORTH SIJul 31, 2006Written off