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527 Knickerbocker Avenue

BrooklynBIN 3076121
$216,250.00 recorded as dueHPD registration valid
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OverviewHealth scoreTimelineFinesOwner
Open Class C
0
Immediately hazardous
Open Class B
3
Hazardous
Open Class A
0
Non-hazardous
Fines due
$216,250.00
Balance on OATH/ECB summonses
Permits on file
10
DOB permit records
Last activity
Apr 28, 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 the 300 most recent of 336 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 0
Open Class B violations
Hazardous
This building 3
Heat & hot water records
Violations and complaints, last 24 months
This building 0
Unpaid penalties
OATH/ECB summonses with balance due
This building $216,250
Bedbug filings with infestations
Annual LL69 filings on record
This building 3
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

Records from every agency, interleaved. Showing the 300 most recent of 336 records on file; the CSV below has the full history.

Download this timeline (CSV) →
Apr 28, 2026
Apr 28, 2026
Apr 22, 2026
Dec 18, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
Apr 10, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Dec 23, 2024
May 16, 2024
Dec 22, 2023
Dec 13, 2023
Mar 21, 2023
Dec 20, 2022
Feb 28, 2022
Feb 19, 2021
Sep 24, 2020

OATH / ECB summonses & fines

$216,250.00 is recorded as due across the 30 summonses below, out of $239,330.00 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 527 Knickerbocker Avenue
1803778Apr 28, 2026WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AND/OR APPROVJan 12, 2027PENDING$1,250.00
1769950May 7, 2025BC 907.2.8 FAILURE TO PROVIDE CLASS J FIRE ALARM SYSTEM FOR TRANSIENT Sep 3, 2026Resolved$6,250.00
1769875May 7, 2025REMOVED OR DEFACED A WRITTEN POSTED VACATE ORDER.NOTED AT THE TIME OF Sep 3, 2026Resolved$5,000.00
1769910May 7, 2025FAILURE TO OBEY A VACATE ORDER FROM THE COMMISSIONER AS PER 28-207.4.NSep 3, 2026Resolved$10,000.00
1730566May 7, 2025FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE Sep 18, 2026Resolved$1,250.00
1730551May 7, 2025FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE Sep 18, 2026Resolved$1,250.00
1730589May 7, 2025FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE Sep 18, 2026Resolved$1,250.00
1730576May 7, 2025FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE Sep 18, 2026Resolved$1,250.00
1730608May 7, 2025FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE Sep 18, 2026Resolved$1,250.00
1832536May 7, 2025PERMANENT DWELLING USED/CONVERTED FOR OTHER THAN PERMANENT RESIDENTIALFeb 4, 2027Resolved$2,500.00
878496Apr 4, 2025WORK WITHOUT A PERMIT. WORK NOTED: AT 3RD FLOOR LEVEL APARTMENT 3F EREFeb 8, 2027Resolved$2,500.00
1832529Apr 4, 2025DWELLING CONVERTED, MAINTAINED OR OCCUPIED WITH 3 OR MORE ADDITIONAL DFeb 4, 2027Resolved$60,000.00
1832534Apr 4, 2025BC 907.2.8. FAILURE TO MAINTAIN BUILDING IN A CODE-COMPLIANT MANNER. FFeb 4, 2027Resolved$2,500.00
1832530Apr 4, 2025DWELLING CONVERTED, MAINTAINED OR OCCUPIED WITH 3 OR MORE ADDITIONAL DFeb 4, 2027Resolved$60,000.00
1832526Apr 4, 2025DWELLING CONVERTED, MAINTAINED OR OCCUPIED WITH 3 OR MORE ADDITIONAL DFeb 4, 2027Resolved$60,000.00
1124856Apr 20, 2010WORK W/O A PERMIT. EXPIRED PERMIT. PERMIT #310177055 EXPIRED 9.1.09. Sep 13, 2010IN VIOLATION
1230242Apr 20, 2010SEC. 714.1;27-323. FAILURE TO PROVIDE REQUIRED FIRE RATING ON STRUCTURSep 13, 2010IN VIOLATION
144678Apr 20, 2010FAILURE TO PROVIDE APPROVED/ACCEPTED PLANS AT JOB SITE AT TIME OF INSPSep 13, 2010IN VIOLATION
681166Apr 20, 2010FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING PER SECTION REQUIREMENTS. COSep 13, 2010IN VIOLATION
1208160Apr 20, 2010SEC. 302.1.1;27-419. FAILURE TO PROVIDE REQUIRED FIRE/SMOKE SEPARATIONSep 13, 2010IN VIOLATION
912265Jul 6, 2009SEC BC 706.7 (MISC) & 27-342 MISC VIOL: FAIL TO PROVIDE REQUIRED OPENISep 3, 2009WRITTEN OFF
875292Oct 15, 2008FAIL TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONST OPS." NO Dec 18, 2008IN VIOLATION
1142959Nov 9, 2007FAILED TO MAINTAIN FIRE STOPPING WHERE REQUIRED NOTED: FIRE CODE SHEETDec 31, 2007WRITTEN OFF
1142957Nov 9, 2007FAILED TO MAINTAIN BLDG DEFECTS NOTED: AT APT 1L AT SAID PREMISES 1)BADec 31, 2007WRITTEN OFF
728289Aug 11, 2007FAILURE TO MAINTAIN BLDG. DEFECTS NOTED: APT 1L BATHROOM FLOOR IS SAGGOct 15, 2007WRITTEN OFF
1088692Feb 15, 2007FAILURE TO MAINTAIN BUILDING. NOTED: FRONT ENTRANCE DOOR AT 1ST FLOOR Apr 16, 2007WRITTEN OFF
1085121Jan 23, 2006FAILURE TO PROVIDE AT LEAST 2 MEANS OF EGRESS FROM ROOM OR SPACE WHEREMar 20, 2006WRITTEN OFF
567339Oct 12, 2005FAILURE TO MAINTAIN BUILDING- HAZARDOUS. DEFECTS NOTED: 1) AT CELLAR LNov 28, 2005IN VIOLATION
1017824Sep 20, 2005FAILURE TO PROVIDE AT LEAST TWO MEANS OF EGRESS FROM ROOM OR SPACE WHENov 7, 2005WRITTEN OFF
436584Jul 19, 2002WORK WITHOUT A PERMIT ERECTED DOOR WAY AT 4 FLOOR TO DIVIDE ONE APARTMSep 9, 2002WRITTEN OFF