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557 Knickerbocker Avenue

BrooklynBIN 3346901
3 open Class C$22,157.00 recorded as dueHPD registration valid
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OverviewHealth scoreTimelineFinesOwner
Open Class C
3
Immediately hazardous
Open Class B
14
Hazardous
Open Class A
0
Non-hazardous
Fines due
$22,157.00
Balance on OATH/ECB summonses
Permits on file
8
DOB permit records
Last activity
Nov 30, 2025
Bedbugs record

Building health score

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

D
Health score · Jul 29, 2026
Scored from all 132 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 3
Open Class B violations
Hazardous
This building 14
Heat & hot water records
Violations and complaints, last 24 months
This building 0
Unpaid penalties
OATH/ECB summonses with balance due
This building $22,157
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. 132 records on file.

Download this timeline (CSV) →
Nov 30, 2025
Aug 19, 2025
Apr 3, 2025
Dec 30, 2024
Jun 10, 2024
May 13, 2024
May 1, 2024
Dec 7, 2023
Jul 13, 2023
Jul 13, 2023
Jun 20, 2023
Jun 20, 2023
Jun 20, 2023
Jun 20, 2023
May 16, 2023
Feb 6, 2023
Mar 14, 2022
Dec 15, 2021
Nov 29, 2021
Oct 21, 2021
Sep 29, 2021
Sep 2, 2021
Jul 2, 2021
Jul 2, 2021
Jul 1, 2021
Apr 14, 2021
Nov 5, 2020
Oct 21, 2020
Oct 20, 2020
Jun 15, 2020

OATH / ECB summonses & fines

$22,157.00 is recorded as due across the 7 summonses below, out of $25,312.00 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 557 Knickerbocker Avenue
203430Aug 19, 2025MAIN LINE CAN BE OPENED WHEN POWER ON. UNREADABLE MAIN LINE FUSE. INOPNov 5, 2025DEFAULT$1,562.00
1019358Oct 21, 2021FAILURE TO MAINTAIN BLDG IN CODECOMPLIANT MANNER ATOI@APT5B OBSERVED MMar 2, 2022ADMIT/IN-VIO
1784433Sep 2, 2021FAILURE TO COMPLY W/THE COMMISSIONER'S ORDER CONTAINED IN SUMMONS/VIOLJan 12, 2022DEFAULT$1,845.00
838451Jul 2, 2021FAILURE TO MAINTAIN BUILDING IN A CODE COMPLIANT MANNER.AT TIME OF INSNov 10, 2021IN VIOLATION
1364672Apr 7, 2019CU05X18,CU32H17,CU39M17,61B07,67X10,68B07,CU97O11,99BB05. CU05X17-DOORJul 22, 2019DEFAULT$6,250.00
1364708Apr 7, 201997X17 UPON INSPECTION THIS DEVICE WAS FOUND TO BE OUT OF SERVICE CREAJul 22, 2019DEFAULT$6,250.00
1452104Jul 24, 2018FAILURE TO FILE A FINAL INSPECTION FOR COMPLETED WORK WITHIN 1 YEAR OFOct 1, 2018DEFAULT$6,250.00