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8411 21 Avenue

Brooklyn, NY 11214BBL 3-06335-0006Map

Owner of record: A 21 Realty Corp

8411 21 Avenue is a walk-up apartment building built in 1924 in Brooklyn, 11214. It has 34 residential units across 4 floors. The owner of record is A 21 Realty Corp. HPD has recorded 42 housing violations here, most recently on June 25, 2025. 21 of the 42 most recent violations are still open. City tax records listed 33 rent-stabilized apartments here in 2024.

HPD violations
42
DOB violations
2
ECB violations
4
HPD complaints
43

What to know

Concern
7 open Class C

Immediately hazardous issues among recent violations are still open.

Good
Last violation Jun 25, 2025

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

Rent-stabilized units in 2024
33
About 97% of the building's 34 apartments

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.

Stabilized units by tax-bill year

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 · 42

  • C

    Replace or repair the self-closing doors that is missing or defective hinges at vestibule door , 1st story

    Jun 25, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at 1st yard door from east at south at public hall, 2nd story

    Jun 11, 2025

    Closed — Violation closed
  • B

    And dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes household items at 1st stack from east at north exterior wall at fire escape, 2nd story

    Jun 11, 2025

    Open — False certification
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at south court door at public hall, 1st story

    Jun 6, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at building entrance door

    Jun 6, 2025

    Closed — Violation closed
  • A

    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 a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • B

    Properly repair with similar material the broken or defective ceramic tiles at west wall under washbasin, in the bathroom located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • B

    Repair or replace the smoke detector defective in the entire apartment located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • B

    Repair or replace the carbon monoxide detecting device(s). defective, in the entire apartment located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • B

    Trace and repair the source and abate the visible mold condition... less than 10 square feet at the window frame 1st from west at north in the bathroom located at apt a1, 1st story, 1st apartment from west at north , section ''north'' original violation 17887252 issued 12-may-25 has been upgraded to class b per administrative code 27-2017.3a(3)(a) or (b).

    May 12, 2025 · Apt A1

    Open — First no access to re- inspect violation
Show 32 more ↓
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color at the ceiling and east wall, in the kitchen located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • A

    Trace and repair the source and abate the visible mold condition... less than 10 square feet at the window frame 1st from west at north in the bathroom located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation closed
  • C

    Abate the infestation consisting of mice in the entire apartment located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation dismissed
  • A

    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

    May 12, 2025

    Closed — Violation closed
  • C

    Remove device preventing door from being self-closing string looped at door knob from east exterior wall to entrance door at air shafts 1st from north at east, at public hall, 1st story

    May 12, 2025

    Closed — Violation dismissed
  • A

    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

    May 12, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges at the front entrance door to building, , 1st story

    May 12, 2025

    Closed — Violation closed
  • C

    Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt a1, 1st story, 1st apartment from west at north , section ''north''

    May 12, 2025 · Apt A1

    Closed — Violation closed
  • A

    Provide a safety cover at electrical outlet on east wall at public hall, 1st story

    Jul 30, 2019

    Closed — Violation dismissed
  • B

    Trace and repair the source and abate the nuisance consisting of mold ... at ceiling /1square feet/ in the bathroom located at apt c1, 3rd story, apartment at west , section at north

    Oct 12, 2017 · Apt C1

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 4th room from north located at apt c1, 3rd story, apartment at west , section at north

    Oct 12, 2017 · Apt C1

    Closed — Violation dismissed
  • B

    Repair the broken or defective plastered surfaces and paint in a uniform color north wall in the bathroom located at apt c1, 3rd story, apartment at west , section at north

    Oct 12, 2017 · Apt C1

    Closed — Violation dismissed
  • B

    Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following a minimum of 100 watts of incandescent light required. (light fixture present)

    Dec 23, 2014

    Closed — Violation dismissed
  • C

    Remove the illegal fastening padlock at metal gate at south front yard of the building yard, 1st story

    Aug 15, 2007

    Open — Nov certified late
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from north at east located at apt a2, 1st story, 2nd apartment from west at north , section at north

    Aug 15, 2007 · Apt A2

    Open — Nov certified late
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from east at south located at apt a2, 1st story, 2nd apartment from west at north , section at north

    Aug 15, 2007 · Apt A2

    Open — Nov certified late
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the 1st room from north at west located at apt a2, 1st story, 2nd apartment from west at north , section at north

    Aug 15, 2007 · Apt A2

    Open — Nov certified late
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the private hallway located at apt a2, 1st story, 2nd apartment from west at north , section at north

    Aug 15, 2007 · Apt A2

    Open — Nov certified late
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration acoustic drop ceiling in the entire apartment located at apt d3, 4th story, 2nd apartment from west at north

    Jul 9, 2005 · Apt D3

    Open — Nov sent out
  • C

    Repair the broken or defective plastered surfaces and paint in a uniform color ceiling in the bathroom located at apt b3, 2nd story, 2nd apartment from west at north , section at north

    Jul 28, 2004 · Apt B3

    Open — Nov sent out
  • B

    Arrange and make self-closing the doors front entrance 1 sty northeast apt a3. located at apt a3

    Sep 8, 1989 · Apt A3

    Open — Nov sent out
  • A

    Provide a lock and key to the entrance door of dwelling unit and, if a cl a multiple dwelling, also chain door guard entrance 1 sty northeast apt a3. located at apt a3

    Sep 8, 1989 · Apt A3

    Open — Nov sent out
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration suspended ceiling rear room & kitchen 1 sty northeast apt a3. located at apt a3

    Sep 8, 1989 · Apt A3

    Open — Nov sent out
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration suspended ceiling 2 sty north apt b3. , section '' ''

    Sep 8, 1989 · Apt B3

    Open — Nov sent out
  • B

    D26-10.01, 10.05 adm code and dept. rules and regulations. remove the encumbrance obstructing egress from fire escapes 4 sty southwest.

    Sep 1, 1989

    Open — Nov sent out
  • C

    D26-17.10 adm code post notice, in form approved by the department, stating the name and location of the person designated by the owner to have key to building's heating system 1 sty pub hall.

    Sep 1, 1989

    Open — Nov certified late
  • B

    D26-10.01, 10.05 adm code arrange and make self-closing the doors bulkhead to roof north & south sections.

    Sep 1, 1989

    Open — Nov sent out
  • B

    D26-10.01 adm code replace with new the missing glass dumbwaiter skylight north & south roof front.

    Sep 1, 1989

    Open — Nov sent out
  • B

    D26-10.01, 10.05 adm code arrange and make self-closing the doors north west bulkhead to roof.

    Sep 1, 1989

    Open — Nov sent out
  • A

    D26-10.01 adm code repair the broken or defective plastered surfaces and paint in a uniform color walls northeast room 4 sty apt d3. , section '' ''

    Nov 26, 1986 · Apt D3

    Open — Nov sent out
  • A

    D26-12.01 adm code remove the dirty and/or loose paper and repaper or paint to the satisfaction of this department wall 4 sty apt d3 kitchen. , section '' ''

    Nov 26, 1986 · Apt D3

    Open — Nov sent out
  • A

    § 300 m/d law file plans and application and legalize the following alteration or restore to the legal condition existing prior to the making of said alteration drop ceilings installed thru out 4 sty apt d3. , section '' ''

    Nov 26, 1986 · Apt D3

    Open — Nov sent out

DOB building violations · 2

  • Failure to post energy grade/score none

    Failure to display energy efficiency score and energy efficiency grade as per adcode sec. 28-309.12.3

    Apr 29, 2021

    Dob violation - active
  • Boilers boiler required

    Ll6291-local law 62/91 - boilers boiler required

    Jul 25, 1994

    Dob violation - dismissed

ECB violations · 4

  • Class - 2

    Failure to comply with the commissioner's order contained in summons/violation #35314633j issued 11/20/18 and to file a certificate of correction pursuant to 28-201.1 and 1rcny 102-01. rem: comply with commissi

    Jan 9, 2019

    Resolve
  • Class - 1

    Occupancy contrary to that allowed by the certificate of occupancy or dob records. hpd #145400 indicates the building is m-dwelling for 35 units "a"/47 stories. found at time of inspection at basement level at

    Nov 20, 2018

    Resolve
  • Non-hazardous

    49, 49-no check valve(back flow preventer)on boiler feed line

    Jun 8, 2001

    Resolve
  • Non-hazardous

    49-no domestic relief value on water line

    Oct 10, 1997

    Resolve

Complaints

  • Water leak

    Slow leak

    Apr 21, 2025 · Apt A1

    Close
  • Electric

    Lighting

    Apr 21, 2025 · Apt A1

    Close
  • Unsanitary condition

    Sewage

    Jul 22, 2019 · Apt A8

    Close
  • Heat/hot water

    Entire building

    Jan 2, 2018 · Apt A3

    Close
  • Paint/plaster

    Ceiling

    Oct 10, 2017 · Apt C1

    Close
  • Unsanitary condition

    Mold

    Oct 10, 2017 · Apt C1

    Close
  • General

    Floor

    Oct 20, 2011 · Apt C6

    Close
  • General

    Floor

    Oct 20, 2011 · Apt C6

    Close
  • Plumbing

    Water-leaks

    Oct 20, 2011 · Apt C6

    Close
  • Plumbing

    Water-leaks

    Oct 20, 2011 · Apt C6

    Close
Show 33 more ↓
  • Plumbing

    Water-leaks

    Oct 20, 2011 · Apt C6

    Close
  • Plumbing

    Water-leaks

    May 24, 2011 · Apt C6

    Close
  • Plumbing

    Water-leaks

    May 24, 2011 · Apt C6

    Close
  • Plumbing

    Water-leaks

    May 24, 2011 · Apt C6

    Close
  • Paint/plaster

    Ceiling

    Dec 2, 2010 · Apt A8

    Close
  • Plumbing

    Water-leaks

    Dec 2, 2010 · Apt A8

    Close
  • Plumbing

    Water-leaks

    Dec 2, 2010 · Apt A8

    Close
  • Paint/plaster

    Ceiling

    Dec 2, 2010 · Apt A8

    Close
  • General

    Floor

    Dec 2, 2010 · Apt A8

    Close
  • General

    Floor

    Dec 2, 2010 · Apt A8

    Close
  • Electric

    Lighting

    Oct 27, 2009 · Apt A2

    Close
  • Electric

    Lighting

    Oct 27, 2009 · Apt A2

    Close
  • Plumbing

    Basin/sink

    Oct 27, 2009 · Apt A2

    Close
  • Plumbing

    Basin/sink

    Oct 27, 2009 · Apt A2

    Close
  • Plumbing

    Basin/sink

    Oct 27, 2009 · Apt A2

    Close
  • Plumbing

    Bathtub/shower

    Oct 27, 2009 · Apt A2

    Close
  • Plumbing

    Shower-stall

    Oct 27, 2009 · Apt A2

    Close
  • Electric

    Wiring

    Oct 27, 2009 · Apt A2

    Close
  • Heating

    Heat related

    Oct 17, 2009 · Apt A2

    Close
  • Electric

    Lighting

    Aug 14, 2007 · Apt A2

    Close
  • Paint/plaster

    Wall

    Aug 14, 2007 · Apt A2

    Close
  • Nonconst

    Vermin

    Jul 5, 2005 · Apt D3

    Close
  • Nonconst

    Janitor/super

    Jun 12, 2005 · Apt C3

    Close
  • Electric

    Electric-supply

    Jun 12, 2005 · Apt C3

    Close
  • Heating

    Heat related

    Feb 10, 2005 · Apt A7

    Close
  • Heating

    Heat related

    Feb 10, 2005 · Apt A7

    Close
  • Heating

    Heat related

    Jan 24, 2005 · Apt A7

    Close
  • Electric

    Lighting

    Jan 24, 2005 · Apt A7

    Close
  • Paint/plaster

    Wall

    Nov 8, 2004 · Apt 1A

    Close
  • Plumbing

    Water-leaks

    Jul 25, 2004 · Apt B3

    Close
  • Plumbing

    Water-leaks

    Jul 25, 2004 · Apt B3

    Close
  • Paint/plaster

    Ceiling

    Jul 25, 2004 · Apt B3

    Close
  • Heating

    Heat related

    Apr 18, 2003 · Apt A7

    Close

Sales history

No recorded sales in our data

Sales come from the NYC Department of Finance rolling sales file.

Building details

Building type
Walk-up apartment building (C1)
Year built
1924
Floors
4
Residential units
34
Building area
30,000 ft²
Lot area
10,000 ft²
Zoning
R5
Community board
311
Council district
43
Block / lot
6335 / 6
Assessed value
$904,050
Landmark / historic district
No

HPD registration #302329, last renewed Sep 13, 2025.

Questions about 8411 21 Avenue

Who owns 8411 21 Avenue?

The owner of record in NYC Department of City Planning PLUTO data is A 21 Realty Corp.

Does 8411 21 Avenue have violations?

Yes. NYC HPD has recorded 42 housing violations at this property.

Is 8411 21 Avenue rent stabilized?

NYC Department of Finance tax bills listed 33 rent-stabilized units here in 2024 (about 97% of its 34 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.

When was 8411 21 Avenue built?

City records list 1924 as the year it was built.

How many apartments are in 8411 21 Avenue?

It has 34 residential units.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.