7424 21 Avenue
Brooklyn, NY 11204BBL 3-06218-0041Map
Owner of record: Cheong Wing Lau
7424 21 Avenue is a walk-up apartment building built in 1927 in Brooklyn, 11204. It has 6 residential units across 3 floors. The owner of record is Cheong Wing Lau. HPD has recorded 376 housing violations here, most recently on October 19, 2026. 47 of the 50 most recent violations are still open.
- HPD violations
- 376
- DOB violations
- 3
- ECB violations
- 2
- HPD complaints
- 1,601
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 · 376
- CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Oct 19, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
Oct 17, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
Oct 17, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
M/d law abate the nuisance consisting of hot water exceeding the maximum temperature of 130 degrees at all hot water fixtures in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
Oct 17, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective lower sash window balance at south wall in the 1st room from north located at apt 3b, 3rd story, 1st apartment from north at east
Oct 16, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
Oct 13, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Provide ready access to buildings heating system door locked at basement at boiler room
Oct 7, 2026
Open — Nov sent out - CImmediately hazardous
Provide hot water at all hot water fixtures in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
Oct 7, 2026 · Apt 3B
Open — Nov certified on time - BHazardous
Repair the leaky and/or defective faucets at sink in the kitchen located at apt 3b, 3rd story, 1st apartment from north at east
Oct 5, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Remove the accumulation of refuse and/or rubbish and maintain in a clean condition the garbage and construction material at building front
Oct 4, 2026
Open — Nov sent out
Show 40 more ↓
- CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges at building entrance door , 1st story
Sep 30, 2026
Open — Nov sent out - ANon-hazardous
Properly repair or replace the broken or defective window balanses at lower sash window at south wall in the 2nd room from east located at apt 3b, 3rd story, 1st apartment from north at east
Jul 27, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective window balanses at lower sash window at east wall in the 2nd room from north located at apt 3b, 3rd story, 1st apartment from west at north
Jul 10, 2026 · Apt 3B
Open — Nov sent out - ANon-hazardous
Cleanse to the satisfaction of this department the the floors at all stories at public hall stairs
Jun 8, 2026
Open — Nov sent out - BHazardous
Replace with new the missing lower screen mesh at skylight
Jun 8, 2026
Open — Nov sent out - CImmediately hazardous
Abate the nuisance consisting of evidence of rats and all underlying causes creating the pest infestations, by using integrated pest management (ipm), eliminate all burrow entry and passageways, pest nests, holes, gaps or cracks in walls, ceilings, floors, fixing leaks and managing garbage in public areas. evidence found at .. yard
Jun 8, 2026
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Jun 8, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - BHazardous
Properly repair with similar material the broken or defective ceramic floor tiles at public hall, 3rd story
Jun 8, 2026
Open — Nov sent out - BHazardous
Repair the broken or defective plastered surfaces and paint in a uniform color at ceiling in the foyer located at apt 3b, 3rd story, 1st apartment from west at north
Jun 3, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Jun 3, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Jun 3, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - BHazardous
Properly repair or replace the broken or defective lower window sash counter balance at 1st widow from north at east in the 2nd room from north located at apt 3b, 3rd story, 1st apartment from west at north
Jun 3, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective ceramic tiles at landing area at public hall, 2nd story
Jun 3, 2026
Open — Nov sent out - ANon-hazardous
Cleanse to the satisfaction of this department the all storys stairs and landings at public hall stairs
Jun 3, 2026
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of roaches at public hall
Jun 3, 2026
Open — Nov sent out - BHazardous
Properly repair with similar material the broken or defective ceramic tiles at landing area at public hall, 3rd story
Jun 3, 2026
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective counter balances at lower sash window in the 1st room from east located at apt 3b, 3rd story, 1st apartment from west at north
May 27, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
May 27, 2026 · Apt 3B
Closed — Violation closed - BHazardous
Properly repair or replace the broken or defective lower sash window balanses at south wall in the 2nd room from east located at apt 3b, 3rd story, 1st apartment from north at east
May 21, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Properly repair or replace the broken or defective lower sash window balanses at south wall in the 2nd room from east located at apt 3b, 3rd story, 1st apartment from north at east
May 11, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
May 6, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Abate the infestation consisting of roaches in the entire apartment located at apt 3b, 3rd story, 1st apartment from north at east
May 6, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to buildings heating system mailbox full ph 9293128451 for person who have key from boiler room at public hall, 1st story
May 6, 2026
Open — Nov sent out - BHazardous
Remove the accumulation of refuse and/or rubbish and maintain in a clean condition the 1st yard from east
May 6, 2026
Open — Nov sent out - 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 1, 2026
Open — Nov sent out - BHazardous
Nyc fire code § 703.1.3; nyc fire code § 703.2: adjust door to prevent gaps between the top and side edges of door and door jamb exceeding the maximum allowable clearance of 1/8 of an inch and maximum allowable clearance of 3/4 of an inch between the door bottom and sill at door in the entrance located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - BHazardous
Repair, replace or provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules defective in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - 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 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - ANon-hazardous
Cleanse to the satisfaction of this department the visible mold at grout joints of the ceramic tiles at west and north walls around bathtub, in the bathroom located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - BHazardous
And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes metal cook pots on the , at fire escape at east , 2nd story
Apr 3, 2026
Open — Nov sent out - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
M/d law abate the nuisance consisting of hotwater exceeded allowed temperature of the 130.f degrees at hotwater fixture, in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Apr 3, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges at the vestibule door at public hall, 1st story
Mar 30, 2026
Closed — Violation closed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges springs, in the entrance located at apt 3b, 3rd story, 1st apartment from west at north
Mar 30, 2026 · Apt 3B
Open — Nov sent out - CImmediately hazardous
Abate the infestation consisting of mice in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Mar 30, 2026 · Apt 3B
Open — Notice of issuance sent to tenant - CImmediately hazardous
M/d law abate the nuisance consisting of hotwater exceeded allowed temperature of the 130.f degrees at hotwater fixtures, in the entire apartment located at apt 3b, 3rd story, 1st apartment from west at north
Mar 30, 2026 · Apt 3B
Open — Nov sent out - ANon-hazardous
Cleanse to the satisfaction of this department the visible mold at caulking, grouts joints of the ceramic tiles at west, north and east walls around bathtub, in the bathroom located at apt 3b, 3rd story, 1st apartment from west at north
Mar 30, 2026 · Apt 3B
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 missing sign,
Mar 16, 2026
Closed — Violation closed - ANon-hazardous
Post a proper notice regarding rent stabilization law, in a form approved by the commissioner, in a conspicuous location within the common area at the buildings entrance. for more information about signage requirements, please visit: https://www.nyc.gov/site/hpd/services-and-information/required-signage.page
Mar 16, 2026
Open — Not complied with
DOB building violations · 3
- Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jun 1, 1994
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Aug 16, 1993
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jun 1, 1993
Dob violation - active
ECB violations · 2
- Class - 2
Observed one weil mclain gas fired boiler with a plug in the back flow, the temperature and pressure gauge is defective, the boiler room door does not close. observed an ao smith water heater leaking water. cor
Oct 8, 2025 · Penalty $1,250
Resolve - Class - 3
B354,15,16,32a,38,50a. 50a- no sign in hallway for basement location or super's phone # of location.
Sep 7, 2011 · Penalty $200
Active
Complaints
- Heat/hot water
Entire building
Oct 23, 2026 · Apt BLDG
Open - Unsanitary condition
Pests
Oct 23, 2026 · Apt 3B
Open - Heat/hot water
Entire building
Oct 22, 2026 · Apt 3B
Open - Heat/hot water
Entire building
Oct 21, 2026 · Apt BLDG
Open - Door/window
Window pane
Oct 20, 2026 · Apt 3B
Open - Unsanitary condition
Pests
Oct 20, 2026 · Apt 3B
Open - Heat/hot water
Apartment only
Oct 20, 2026 · Apt 3B
Open - Unsanitary condition
Pests
Oct 18, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 18, 2026 · Apt 3B
Close - Unsanitary condition
Pests
Oct 17, 2026 · Apt 3B
Close
Show 40 more ↓
- Heat/hot water
Entire building
Oct 16, 2026 · Apt BLDG
Close - Electric
Power outage
Oct 16, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 16, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 16, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 14, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 14, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 13, 2026 · Apt BLDG
Close - Door/window
Window frame
Oct 13, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 13, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 12, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 11, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 10, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 10, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 10, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 9, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 9, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 9, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 9, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 9, 2026 · Apt BLDG
Close - Unsanitary condition
Pests
Oct 8, 2026 · Apt 3B
Close - Unsanitary condition
Pests
Oct 8, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 7, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 7, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 7, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 6, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 6, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 5, 2026 · Apt 3B
Close - Heat/hot water
Apartment only
Oct 5, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 4, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 4, 2026 · Apt 3B
Close - Heat/hot water
Entire building
Oct 4, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 3, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 3, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 3, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 1, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Oct 1, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Sep 30, 2026 · Apt BLDG
Close - Plumbing
Water supply
Sep 30, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Sep 27, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Sep 27, 2026 · Apt BLDG
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C2)
- Year built
- 1927
- Floors
- 3
- Residential units
- 6
- Building area
- 5,214 ft²
- Lot area
- 2,600 ft²
- Zoning
- R5
- Community board
- 311
- Council district
- 43
- Block / lot
- 6218 / 41
- Assessed value
- $574,650
- Landmark / historic district
- No
HPD registration #328483, last renewed Feb 6, 2026.
Questions about 7424 21 Avenue
Who owns 7424 21 Avenue?
The owner of record in NYC Department of City Planning PLUTO data is Cheong Wing Lau.
Does 7424 21 Avenue have violations?
Yes. NYC HPD has recorded 376 housing violations at this property.
Is 7424 21 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 7424 21 Avenue built?
City records list 1927 as the year it was built.
How many apartments are in 7424 21 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.