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5820 21 Avenue

Brooklyn, NY 11204BBL 3-05507-0048Map

Owner of record: Congregation Beis Mordechai Semihai

5820 21 Avenue is a mixed residential and retail building built in 1931 in Brooklyn, 11204. It has 1 residential unit across 2 floors. The owner of record is Congregation Beis Mordechai Semihai. HPD has recorded 34 housing violations here, most recently on November 18, 2025. 1 of the 34 most recent violations are still open.

HPD violations
34
DOB violations
2
ECB violations
4
HPD complaints
0

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation Nov 18, 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

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 34

  • I

    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
  • A

    Paint metal in accordance with dept. regulation riser in the 2nd bathroom from north located at apt 2, 2nd story, 1st apartment from south at west

    Aug 15, 2025 · Apt 2

    Closed — Violation dismissed
  • B

    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 2, 2nd story, 1st apartment from south at west

    Aug 15, 2025 · Apt 2

    Closed — Violation dismissed
  • A

    Paint metal in accordance with dept. regulation riser in the 1st bathroom from north located at apt 2, 2nd story, 1st apartment from south at west

    Aug 15, 2025 · Apt 2

    Closed — Violation dismissed
  • B

    Repair, replace or provide an approved and operational smoke detecting device, installed in accordance with department of buildings rules and regulations inoperable in the entire apartment located at apt 2, 2nd story, 1st apartment from south at west

    Aug 15, 2025 · Apt 2

    Closed — Violation dismissed
  • A

    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 6, 2025

    Closed — Violation dismissed
  • A

    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

    Closed — Violation dismissed
  • I

    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 17, 2023

    Closed — Violation dismissed
  • A

    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

    Closed — Violation dismissed
  • I

    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 4, 2022

    Closed — Violation dismissed
Show 24 more ↓
  • A

    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 22, 2022

    Closed — Violation dismissed
  • A

    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 6, 2021

    Closed — Violation dismissed
  • I

    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 6, 2021

    Closed — Violation dismissed
  • A

    § 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor missing at public hall, 1st story

    Sep 5, 2019

    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

    Sep 5, 2019

    Closed — Violation dismissed
  • C

    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 missing at public hall, 1st story

    Sep 5, 2019

    Closed — Violation closed
  • A

    Post a proper notice of smoke detector requirements, in a form approved by the commissioner, at or near the mail box missing at public hall, 1st story

    Sep 5, 2019

    Closed — Violation dismissed
  • A

    Post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building. at public hall, 1st story

    Sep 5, 2019

    Closed — Violation dismissed
  • A

    Post a proper notice of carbon monoxide detecting device requirements, in a form approved by the commissioner, in a common area of a class a multiple dwelling near inspection certificate or provide notice to tenants in a private dwelling. at public hall, 1st story

    Sep 5, 2019

    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

    Sep 5, 2019

    Closed — Violation dismissed
  • I

    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
  • I

    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
  • B

    Remove all encumbrances consisting of debris and household items at public hall, 1st story

    Sep 2, 2015

    Closed — Violation closed
  • A

    Repair the broken or defective plastered surfaces and paint in uniform color ceiling at skylight area in the private hallway located at apt 2, 2nd story

    Sep 2, 2015 · Apt 2

    Closed — Violation closed
  • I

    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 6, 2015

    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 50 watts minimum.

    Oct 8, 1987

    Closed — Violation closed
  • B

    D26-19.07 adm code 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 100 watts.

    Jun 9, 1986

    Open — Nov sent out
  • A

    D26-20.08,20.09 adm code file certification of satisfactory installation of smoke detecting device in accordance with h.p.d. rules and regulations.

    Jan 20, 1982

    Closed — Violation closed
  • A

    D26-21.05 adm code post and maintain a street number on the front of the dwelling plainly visible from the sidewalk.

    Apr 20, 1979

    Closed — Violation closed
  • A

    D26-41.15 adm code post and maintain a proper sign on wall of entrance story showing the registration number assigned by the department and the address of the building.

    Apr 20, 1979

    Closed — Violation closed
  • A

    Section 329, m/d law and dept. rules and regs. provide a completed certificate of inspection visits in a proper frame at or near mailboxes, bottom edge of frame between 48-62 inches above floor frame missing.

    Apr 20, 1979

    Closed — Violation closed
  • B

    D26-10.01 adm code replace with new the missing fire proof self closing doors at top & bottom of cellar stairs.

    May 27, 1976

    Closed — Violation closed
  • B

    Section 65 m/d law provide under completed permit, a proper enclosure for the central heating plant, cellar center.

    May 27, 1976

    Closed — Violation closed
  • B

    D26-32.01 adm code discontinue unlawful cooking space or file plans and application with this department to legalize same, if lawfully feasible, cellar center.

    May 27, 1976

    Closed — Violation closed

DOB building violations · 2

  • Construction other optional

    Work w/out permit

    Jun 20, 2007

    Vw*-violation - work w/o permit dismissed
  • Construction other optional

    Work without a permit. work noted: cut opening at 1st fl and installed 3' metal door and metal stairs into a shared driveway. cut opening at 2nd sty and installed door & balcony also over hanging into a shared driveway. stop all work. remedy: obtain a permit if feasible. contact dob at 802-3685 prior to return to work

    Mar 16, 2000

    Vw*-violation - work w/o permit dismissed

ECB violations · 4

  • Hazardous

    Work w/o permit. extension below porch at rear of bldg approx 15' x 20' was erected w/o obtain permit as per department record.(steel porch at 2nd fl level rear was erected under permit # 302219604).

    Jun 20, 2007

    Resolve
  • Non-hazardous

    Failure to provide 8' height fence where required during const operations. noted filed appl #30221964 exp 1/17/07 "propose to erect porch atrear as shown! however no 8' height fence provided at rear yrd east

    Jan 16, 2007 · Penalty $480

    Resolve
  • Non-hazardous

    Work w/o a permit:work note:cut opening at 1st story and installed 3'-0" metal door and metal stairs into a shaped driveway.(2)cut opening at 2nd story and installing door and balcony also over hanging into a

    Mar 16, 2000

    Resolve
  • Non-hazardous

    Failure to provide plans at premises at time of inspection . defect is: no approved plans at site for renovation under job # 300924757-01- al remedy: stop all work. 2- provide approved plans to show door openin

    Jan 12, 2000

    Resolve

Complaints

No HPD complaints in our records

Complaint data is still being backfilled from NYC Open Data.

Sales history

No recorded sales in our data

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

Building details

Building type
Mixed residential and retail building (S1)
Year built
1931
Floors
2
Residential units
1
Building area
3,280 ft²
Lot area
2,483 ft²
Zoning
R5
Community board
312
Council district
44
Block / lot
5507 / 48
Assessed value
$160,920
Landmark / historic district
No

HPD registration #322950, last renewed Dec 5, 2025.

Questions about 5820 21 Avenue

Who owns 5820 21 Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Congregation Beis Mordechai Semihai.

Does 5820 21 Avenue have violations?

Yes. NYC HPD has recorded 34 housing violations at this property.

Is 5820 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 5820 21 Avenue built?

City records list 1931 as the year it was built.

How many apartments are in 5820 21 Avenue?

It has 1 residential units and 2 units in total.

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