858 Knickerbocker Avenue
Brooklyn, NY 11207BBL 3-03430-0028Map
Owner of record: Wai Lam
858 Knickerbocker Avenue is a walk-up apartment building built in 1910 in Brooklyn, 11207. It has 6 residential units across 3 floors. The owner of record is Wai Lam. HPD has recorded 160 housing violations here, most recently on May 5, 2026. 38 of the 50 most recent violations are still open. City tax records listed 6 rent-stabilized apartments here in 2024.
- HPD violations
- 160
- DOB violations
- 6
- ECB violations
- 7
- HPD complaints
- 265
What to know
No open immediately-hazardous violations among recent records.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
Counts come from owners' rent-stabilization filings shown on NYC Department of Finance tax bills, as extracted by JustFix. They tell you a building has stabilized apartments, not which ones.
Think your apartment is stabilized? Request its rent history from HCR (free), then check your renewal with the renewal calculator.
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 160
- ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
May 5, 2026
Open — Nov sent out - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Nov 18, 2025
Closed — Violation dismissed - ANon-hazardous
File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.
Jun 10, 2025
Open — Nov sent out - IInformation / order
And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.
Oct 18, 2018
Closed — Violation dismissed - CImmediately hazardous
M/d law abate the nuisance consisting of refrigerator (doors intact) at public hall, 1st story
Oct 18, 2017
Closed — Violation closed - BHazardous
Abate the nuisance consisting of roaches in the private hallway located at apt 1r, 1st story, 1st apartment from north at east
Sep 30, 2017 · Apt 1R
Closed — Violation dismissed - BHazardous
Repair or replace the smoke detector inoperative located at b-room 1r, 1st story, 1st b-room from north at east
Sep 30, 2017 · Apt 1R
Closed — Violation dismissed - BHazardous
Repair or replace the carbon monoxide detecting device(s). missing located at b-room 1r, 1st story, 1st b-room from north at east
Sep 30, 2017 · Apt 1R
Open — Nov sent out - BHazardous
Properly repair the broken or defective spring balance at south two window lower sash in the kitchen located at apt 1r, 1st story, 1st apartment from north at east
Sep 30, 2017 · Apt 1R
Closed — Violation dismissed - ANon-hazardous
Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected at public hall, 1st story
Sep 30, 2017
Closed — Violation closed
Show 40 more ↓
- ANon-hazardous
Post, in a form approved by the commissioner, and maintain a notice in a common area of the building regarding the procedures that should be followed when a gas leak is suspected
Aug 25, 2017
Open — Nov sent out - BHazardous
Provide an adequate supply of gas to the fixtures stove in the kitchen located at apt 1r, 1st story, 4th apartment from south at west
Aug 23, 2017 · Apt 1R
Open — Nov sent out - BHazardous
Properly secure the loose faucet at sink in the kitchen located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the broken or defective locking device on door to rear yard in the 3rd room from east located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Replace with new the missing knob on metal door in the 1st room from east located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Abate the nuisance consisting of mice in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the bathroom located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the source and abate the evidence of a water leak at ceiling in the bathroom located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the broken or defective mortise lock on metal door in the entrance located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly secure the loose metal frame at door in the entrance located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Replace with new the broken or defective wood door jamb to door frame in the 1st room from east located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - ANon-hazardous
Paint metal in accordance with dept. regulation all radiators and steam risers in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - ANon-hazardous
Refit lower sash windows in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 1l, 1st story, apartment at south
Apr 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair or replace the smoke detector mising located at apt 1l, 1st story, 1st apartment from north at east
Feb 24, 2017 · Apt 1L
Open — Nov sent out - ANon-hazardous
Refit windows sashes in the entire apartment located at apt 1l, 1st story, 1st apartment from north at east
Feb 24, 2017 · Apt 1L
Open — Nov sent out - ANon-hazardous
Provide properly trapped, sewer connected, rain leader so as to provide proper drainage and file an application for approval before doing the work at rear yard
Feb 24, 2017
Open — Nov sent out - BHazardous
Properly repair the broken or defective paving at rear yard
Feb 24, 2017
Open — Nov sent out - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. located at apt 1l, 1st story, 1st apartment from north at east
Feb 24, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair or replace the smoke detector missing located at apt 1l, 1st story, 1st apartment from north at east
Feb 24, 2017 · Apt 1L
Open — Nov sent out - CImmediately hazardous
Cleanse and disinfect to the satisfaction of this department after removing the aprx 6 inches of sewage water at basement
Feb 24, 2017
Closed — Violation closed - BHazardous
Remove all encumbrances consisting of bike stored at public hall, 1st story
Feb 18, 2017
Open — Nov sent out - ANon-hazardous
Refit window in the 1st room from north located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the broken or defective window counter balance lower sash in the 3rd room from north located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the 2nd room from north located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color north wall in the bathroom located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Closed — Violation closed - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 1l, 1st story, 1st apartment from north at east
Feb 18, 2017 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair the broken or defective counter balance at lower window sash at north wall in the 1st room from north located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Open — Nov sent out - BHazardous
Provide a safe and adequate supply of electric service to the fixtures at ceiling in the 1st room from north located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Closed — Violation closed - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling in the 2nd room from north located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective marble saddle at entrance in the 1st room from north located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles in the 3rd room from north at east located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling and all walls in the bathroom located at apt 1l, 1st story, 1st apartment from north at east
Dec 27, 2016 · Apt 1L
Open — Nov sent out - ANon-hazardous
Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agency?s housing information guide. a sample notice can be found at www.nyc.gov/hpd., 1st story
Aug 10, 2016
Open — Nov sent out - BHazardous
Replace with new the broken or defective non self locking - lock device at roof door at bulkhead
Aug 10, 2016
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of household items on 3rd story public hall
Aug 10, 2016
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of household items on 2nd story public hall
Aug 10, 2016
Closed — Violation closed - BHazardous
Remove all encumbrances consisting of household items on 1st story public hall
Aug 10, 2016
Closed — Violation closed
DOB building violations · 6
- Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 19, 2016
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 19, 2016
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 19, 2016
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 19, 2016
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 31, 2005
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 26, 2002
Dob violation - dismissed
ECB violations · 7
- Class - 1
Failure to have new or altered plumbing system tested. @ time of my insp @ 12:00pm @ the above date & address in apt# 1r on safety sweep i observed new gas valve installed on gas stove which had no proper testi
Jul 20, 2016 · Penalty $1,000
Resolve - Class - 1
Work w/out a permit. @ time of insp 12:00pm on 7/20/16 @ above address i observed on safety sweep in apt# 1r newly installed gas valve behind stove. pipe sealent was still fresh & wet. no permits on file. photo
Jul 20, 2016 · Penalty $1,600
Resolve - Class - 2
Unapproved/unsafe/unsuitable electrical equipment,apparatus,materials,devices,appliances or wiring in use.throughout the basement and main hallway at the entrance loose hanging wires open boxes and broken fixtu
Jul 20, 2016 · Penalty $800
Resolve - Class - 1
Failure to maintain bldg in a code in a code compliant manner:no fire stopping per bc 712.3 noted: seeral areas of the ceiling in the cellaris missing its fire rating.there are numerous openings in the ceiling,
Jul 20, 2016 · Penalty $1,000
Resolve - Class - 1
Gas being supplied to bldg w/out insp & certification by dob. @ time of insp 12:00pm on 7/20/16 @ above address i observed on safety sweep in apt# 1r newly installed gas valve for gas stove & stove was fully op
Jul 20, 2016 · Penalty $1,000
Resolve - Class - 2
Failure to maintian bldg in a code compliant manner.use of a prohibited hardware per bc1008.1.8 and 27-371.noted-in apt.1r,window gate fitteed with pad-lock.rem:provide legal hardware.
Jul 12, 2015 · Penalty $250
Resolve - Class - 1
Sec ec 250-24.a5. neutral bar shall not be bonded after the ser sw. basement panels. remedy: comply w/ec code.
Jul 15, 2013
Resolve
Complaints
- Water leak
Heavy flow
Jun 25, 2024 · Apt 1R
Close - Heat/hot water
Entire building
Jan 17, 2022 · Apt BLDG
Close - Door/window
Window frame
Sep 26, 2017 · Apt 1R
Close - Unsanitary condition
Pests
Sep 26, 2017 · Apt 1R
Close - General
Cooking gas
Aug 25, 2017 · Apt 1R
Close - General
Cooking gas
Aug 23, 2017 · Apt 1R
Close - General
Cooking gas
Aug 22, 2017 · Apt 1R
Close - Safety
Smoke detector
Apr 14, 2017 · Apt 1L
Close - Safety
Carbon monoxide detector
Apr 14, 2017 · Apt 1L
Close - Plumbing
Radiator
Feb 17, 2017 · Apt 1L
Close
Show 40 more ↓
- Door/window
Door
Feb 17, 2017 · Apt 1L
Close - Paint/plaster
Ceiling
Feb 17, 2017 · Apt 1L
Close - Plumbing
Radiator
Feb 17, 2017 · Apt 1L
Close - Heat/hot water
Apartment only
Feb 17, 2017 · Apt 1L
Close - Paint/plaster
Wall
Feb 17, 2017 · Apt 1L
Close - Unsanitary condition
Mold
Feb 17, 2017 · Apt 1L
Close - Unsanitary condition
Sewage
Feb 17, 2017 · Apt 1L
Close - Electric
Lighting
Feb 10, 2017 · Apt 1L
Close - Plumbing
Bathtub/shower
Feb 8, 2017 · Apt 1L
Close - Safety
Smoke detector
Feb 8, 2017 · Apt 1L
Close - Safety
Window guard broken/missing
Feb 8, 2017 · Apt 3L
Close - Plumbing
Radiator
Dec 16, 2016 · Apt 1L
Close - Plumbing
Radiator
Dec 16, 2016 · Apt 1L
Close - Electric
Wiring
Dec 16, 2016 · Apt 1L
Close - Electric
Wiring
Dec 16, 2016 · Apt 1L
Close - Door/window
Window frame
Dec 16, 2016 · Apt 1L
Close - Paint/plaster
Wall
Dec 16, 2016 · Apt 1L
Close - Electric
No lighting
Dec 16, 2016 · Apt 1L
Close - Paint/plaster
Wall
Dec 16, 2016 · Apt 1L
Close - Flooring/stairs
Floor
Dec 16, 2016 · Apt 1L
Close - Paint/plaster
Radiator
Dec 16, 2016 · Apt 1L
Close - Paint/plaster
Wall
Dec 16, 2016 · Apt 1L
Close - Paint/plaster
Ceiling
Dec 16, 2016 · Apt 1L
Close - Unsanitary condition
Garbage/recycling storage
Aug 1, 2016 · Apt 1R
Close - Unsanitary condition
Garbage/recycling storage
Jul 30, 2016 · Apt BLDG
Close - Plumbing
Basin/sink
Jul 21, 2016 · Apt 1L
Close - Unsanitary condition
Garbage/recycling storage
Jul 21, 2016 · Apt 1L
Close - Paint/plaster
Radiator
Jul 21, 2016 · Apt 1L
Close - Paint/plaster
Wall
Jul 21, 2016 · Apt 1L
Close - Door/window
Window frame
Jul 21, 2016 · Apt 1L
Close - Door/window
Door
Jul 21, 2016 · Apt 1L
Close - Unsanitary condition
Pests
Jul 21, 2016 · Apt 1L
Close - Unsanitary condition
Pests
Jul 21, 2016 · Apt 1L
Close - Electric
Lighting
Jul 21, 2016 · Apt 1L
Close - Electric
Wiring
Jun 28, 2016 · Apt 2R
Close - Electric
Lighting
Jun 28, 2016 · Apt 2R
Close - Unsanitary condition
Pests
May 19, 2016 · Apt 1L
Close - Paint/plaster
Ceiling
May 19, 2016 · Apt 1L
Close - Electric
Wiring
May 19, 2016 · Apt 1L
Close - Paint/plaster
Ceiling
May 19, 2016 · Apt 1L
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C2)
- Year built
- 1910
- Floors
- 3
- Residential units
- 6
- Building area
- 4,725 ft²
- Lot area
- 2,250 ft²
- Zoning
- R6
- Community board
- 304
- Council district
- 37
- Block / lot
- 3430 / 28
- Assessed value
- $486,000
- Landmark / historic district
- No
HPD registration #350682, last renewed Jul 31, 2026.
Questions about 858 Knickerbocker Avenue
Who owns 858 Knickerbocker Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Wai Lam.
Does 858 Knickerbocker Avenue have violations?
Yes. NYC HPD has recorded 160 housing violations at this property.
Is 858 Knickerbocker Avenue rent stabilized?
NYC Department of Finance tax bills listed 6 rent-stabilized units here in 2024 (about 100% of its 6 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 858 Knickerbocker Avenue built?
City records list 1910 as the year it was built.
How many apartments are in 858 Knickerbocker Avenue?
It has 6 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.