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871 Knickerbocker Avenue

BrooklynBIN 3079573
2 open Class CHPD registration valid
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OverviewHealth scoreTimelineFinesOwner
Open Class C
2
Immediately hazardous
Open Class B
6
Hazardous
Open Class A
0
Non-hazardous
Fines due
$0.00
Balance on OATH/ECB summonses
Permits on file
7
DOB permit records
Last activity
Dec 27, 2025
Bedbugs record

Building health score

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

B
Health score · Jul 29, 2026
Scored from all 138 public records for this building
Open Class C violations
Immediately hazardous, uncertified
This building 2
Open Class B violations
Hazardous
This building 6
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. 138 records on file.

Download this timeline (CSV) →
Dec 27, 2025
Jan 24, 2025
Jun 3, 2024
Jun 3, 2024
May 31, 2024
May 31, 2024
Jan 24, 2024
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Aug 2, 2023
Jul 3, 2023
Jun 20, 2023
Mar 23, 2023
Oct 27, 2022
Feb 8, 2022
Sep 17, 2021
Dec 23, 2020
Nov 25, 2019
Jul 17, 2019
Jun 21, 2019
Jun 3, 2019
Jun 3, 2019
Jun 3, 2019

OATH / ECB summonses & fines

No balance is recorded as due across the 1 summons below, out of $1,250.00 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 871 Knickerbocker Avenue
1378054May 16, 2017AS PER CLASS 2 (B265) 28-303.7 FAILURE TO FILE A COMPLETE BOILER Jul 3, 2017DEFAULT