4022 9 Avenue
Brooklyn, NY 11232BBL 3-00920-0045Map
Owner of record: Wan Biu Liu
4022 9 Avenue is a walk-up apartment building built in 1945 in Brooklyn, 11232. It has 4 residential units across 2 floors. The owner of record is Wan Biu Liu. HPD has recorded 53 housing violations here, most recently on April 30, 2026. 34 of the 50 most recent violations are still open.
- HPD violations
- 53
- DOB violations
- 0
- ECB violations
- 0
- HPD complaints
- 8
What to know
Immediately hazardous issues among recent violations are still open.
Date of the most recent HPD inspection that found a problem.
No balance due on recent ECB violations.
Rent stabilization
No rent-stabilized units in 2018–2024 tax bills
Violations
Most recent first. Showing up to 50 per agency.
HPD housing violations · 53
- 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.
Apr 30, 2026
Open — Nov sent out - BHazardous
And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes shopping cart, flower pot on the 2nd story balcony at north fire escape
Aug 18, 2025
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at the ceiling, in the 2nd room from east at north located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling, north and east walls, in the 1st room from east at south located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - ANon-hazardous
Replace with new the defective flush pipe of water closet wood window casing 1st from east at south, in the 1st room from east at south located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Nov sent out - CImmediately hazardous
Properly repair or replace the broken or defective glass pane at lower sash 1st window from east at south,. in the bathroom located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeding the allowed temperature of 130.f degrees at hotwater fixtures, in the entire apartment located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - ANon-hazardous
Post and maintain a proper notice on wall of the entrance story in english and spanish on the availability of the agencys housing information guide. a sample notice can be found at www.nyc.gov/hpd. at public hall, 1st story
Aug 15, 2025
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective latch set at entrance door to public hall stairs at public hall, 1st story
Aug 15, 2025
Open — Nov sent out - CImmediately hazardous
Remove device preventing door from being self-closing plastic wedge jammed the entrance door to public hall stairs at public hall, 1st story
Aug 15, 2025
Open — Nov sent out
Show 40 more ↓
- ANon-hazardous
§ 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame readily accessible for signature, bottom edge of frame between 48-62 inches above floor at ,missing accessable frame, at public hall, 1st story
Aug 15, 2025
Open — Nov sent out - ANon-hazardous
Post a proper notice of carbon monoxide detecting device requirements, in a form approved by commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in private dwellings
Aug 15, 2025
Open — Nov sent out - ANon-hazardous
Paint with light colored paint to the satisfaction of this department the ceiling, at public hall, 2nd story
Aug 15, 2025
Open — Nov sent out - ANon-hazardous
Paint with light colored paint to the satisfaction of this department the reccess of the skylight at public hall, 2nd story
Aug 15, 2025
Open — Nov sent out - 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 15, 2025
Open — Nov sent out - CImmediately hazardous
Remove the illegal fastening double cylinder key operated lock installed at the front entrance door to building, , 1st story, section ''east''
Aug 15, 2025
Open — Nov sent out - BHazardous
Trace and repair the source and abate the visible mold condition... less than square 10 feet at the window frame in the bathroom located at apt 2f, 2nd story, 1st apartment from east at south , section ''east'' original violation 18161641 issued 15-aug-25 has been upgraded to class b per administrative code 27-2017.3a(3)(a) or (b).
Aug 15, 2025 · Apt 2F
Open — Notice of issuance sent to tenant - BHazardous
Remove all encumbrances consisting of flower pots with wood shelf at public hall, 2nd story
Aug 15, 2025
Open — Nov sent out - BHazardous
Remove all encumbrances consisting of shopping cart at public hall, 1st story
Aug 15, 2025
Open — Invalid certification - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges at the front entrance door to building , , 1st story, section ''east''
Aug 15, 2025
Closed — Violation closed - BHazardous
Properly repair with similar material the broken or defective fire retardant material at the recess of the skylight, at public hall, 2nd story
Aug 15, 2025
Open — Invalid certification - BHazardous
Properly repair with similar material the broken or defective fire retardant materials at the ceiling, at public hall, 2nd story
Aug 15, 2025
Open — Invalid certification - BHazardous
Trace and repair the source and abate the visible mold condition... greater than 10 square feet at window frames 1st, 2nd, 3rd from north at east, in the 1st room from east at south located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - ANon-hazardous
Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mailbox ,missing sign, at public hall, 1st story
Aug 15, 2025
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective missing stile clips at the top rail of the lower sash window 1st from north at east, in the 1st room from east at south located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - ANon-hazardous
Trace and repair the source and abate the visible mold condition... less than square 10 feet at the window frame in the bathroom located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - ANon-hazardous
Cleanse to the satisfaction of this department the visible mold at grout joints of the ceramic tiles at south and west walls around bathtub, in the bathroom located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color the ceiling,east and south walls in the kitchen located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles in the kitchen located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - BHazardous
Properly repair with similar material the broken or defective wood window stool 2nd from east at south, in the kitchen located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges at door 1st from west at north, in the entrance located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective latch set at 1st door from north at east, in the entrance located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - CImmediately hazardous
Properly repair or replace the broken or defective mortise lock at 1st door from north at east , in the entrance located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Closed — Violation closed - BHazardous
Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations defective, in the entire apartment located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - BHazardous
Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules missing, in the entire apartment located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - BHazardous
Properly repair the source and abate the evidence of a water leak at the ceiling, in the 1st room from east at south located at apt 2f, 2nd story, 1st apartment from east at south , section ''east''
Aug 15, 2025 · Apt 2F
Open — Invalid certification - 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 5, 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.
Nov 29, 2024
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.
Apr 3, 2024
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 22, 2023
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.
Mar 20, 2023
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 14, 2022
Closed — Violation dismissed - 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.
Feb 18, 2022
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.
Feb 18, 2022
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.
Apr 5, 2021
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.
Apr 5, 2021
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 12, 2018
Closed — Violation dismissed - 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 1, 2016
Closed — Violation dismissed - 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 6, 2015
Closed — Violation dismissed - 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.
Feb 5, 2015
Closed — Violation dismissed
DOB building violations · 0
No DOB violations on record
ECB violations · 0
No ECB violations on record
Complaints
- Unsanitary condition
Mold
Aug 12, 2025 · Apt 2F
Close - Paint/plaster
Ceiling
Aug 12, 2025 · Apt 2F
Close - Paint/plaster
Wall
Aug 12, 2025 · Apt 2F
Close - Paint/plaster
Ceiling
Aug 12, 2025 · Apt 2F
Close - Water leak
Heavy flow
Aug 12, 2025 · Apt 2F
Close - Unsanitary condition
Pests
Jul 17, 2019 · Apt 2F
Close - Safety
Carbon monoxide detector
Jul 17, 2019 · Apt 2F
Close - Safety
Smoke detector
Jul 17, 2019 · Apt 2F
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C3)
- Year built
- 1945
- Floors
- 2
- Residential units
- 4
- Building area
- 4,623 ft²
- Lot area
- 2,750 ft²
- Zoning
- R6
- Community board
- 312
- Council district
- 38
- Block / lot
- 920 / 45
- Assessed value
- $475,650
- Landmark / historic district
- No
HPD registration #324640, last renewed Nov 10, 2025.
Questions about 4022 9 Avenue
Who owns 4022 9 Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Wan Biu Liu.
Does 4022 9 Avenue have violations?
Yes. NYC HPD has recorded 53 housing violations at this property.
Is 4022 9 Avenue rent stabilized?
No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.
When was 4022 9 Avenue built?
City records list 1945 as the year it was built.
How many apartments are in 4022 9 Avenue?
It has 4 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.