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820 Knickerbocker Avenue

BrooklynBIN 3422144
HPD registration valid
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OverviewHealth scoreTimelineFinesOwner
Open Class C
0
Immediately hazardous
Open Class B
0
Hazardous
Open Class A
0
Non-hazardous
Fines due
$0.00
Balance on OATH/ECB summonses
Permits on file
8
DOB permit records
Last activity
Dec 16, 2025
Bedbugs record

Building health score

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

A
Health score · Jul 29, 2026
Scored from all 24 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 0
Open Class B violations
Hazardous
This building 0
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 0
Active vacate order
HPD or FDNY order to vacate, still in effect
This building No

Unified timeline

Every record from every agency, interleaved. 24 records on file.

Download this timeline (CSV) →
Dec 16, 2025
Dec 5, 2024
Dec 1, 2023
Mar 1, 2023
Mar 29, 2022
May 28, 2021
Nov 30, 2020
Feb 6, 2020
Oct 18, 2019
May 29, 2018
May 29, 2018
Nov 29, 2016
Dec 9, 2015
Mar 3, 2015
Dec 5, 2014
Nov 3, 2014
Jan 22, 2014
Aug 27, 2013
Jul 1, 2013
Jul 1, 2013
Jul 1, 2013
Jul 1, 2013
Oct 28, 2010
Sep 28, 2010

OATH / ECB summonses & fines

No balance is recorded as due across the 1 summons below, out of $2,500.00 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 820 Knickerbocker Avenue
1375925Oct 28, 2010FAILURE TO MAINTAIN OBSERVED:FENCE DEFECTIVE @ STREETSIDE OF LOT,SECTIDec 20, 2010WRITTEN OFF—