186 21 Street
Brooklyn, NY 11232BBL 3-00643-0011Map
Owner of record: 21st Development Group LLC
186 21 Street is an elevator apartment building built in 2017 in Brooklyn, 11232. It has 26 residential units across 5 floors. The owner of record is 21st Development Group LLC. HPD has recorded 10 housing violations here, most recently on May 8, 2026. City tax records listed 8 rent-stabilized apartments here in 2024.
- HPD violations
- 10
- DOB violations
- 17
- ECB violations
- 21
- HPD complaints
- 6
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 · 10
- 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 8, 2026
Closed — Violation dismissed - CImmediately hazardous
Provide an adequate supply of heat for the apartment in the entire apartment located at apt 3f, 3rd story, 3rd apartment from west at north
Dec 15, 2025 · Apt 3F
Closed — Violation dismissed - CImmediately hazardous
Provide ready access to buildings heating system door locked at cellar at boiler room
Dec 15, 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.
Apr 20, 2021
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
Feb 9, 2021
Closed — Violation dismissed - ANon-hazardous
§ 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
Feb 9, 2021
Closed — Violation dismissed - ANon-hazardous
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.
Feb 9, 2021
Closed — Violation dismissed - ANon-hazardous
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
Feb 9, 2021
Closed — Violation dismissed - ANon-hazardous
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
Feb 9, 2021
Closed — Violation dismissed - 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
Feb 9, 2021
Closed — Violation dismissed
DOB building violations · 17
- Elevator elevatorrequired
E-elevator elevatorrequired
Dec 23, 2020
Dob violation - resolved - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jan 9, 2019
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Oct 31, 2018
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jan 10, 2018
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Jan 10, 2018
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Nov 15, 2017
Dob violation - dismissed - Fail to certify class 1 none
Failure to certify correction on immediately hazardous (class 1) ecb violation
Nov 15, 2017
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2015 inspection report
Feb 24, 2017
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2014 inspection report
Oct 1, 2015
Dob violation - dismissed - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2013 inspection report
Mar 3, 2015
Dob violation - dismissed
Show 7 more ↓
- Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2012 inspection report
May 15, 2014
Dob violation - dismissed - Low pressure boiler boiler required
Lblvio-low pressure boiler boiler required
Dec 31, 2009
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 1, 2009
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 3, 2008
Dob violation - dismissed - Construction other optional
C-construction other optional
Nov 28, 2005
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Mar 26, 2002
Dob violation - dismissed - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Feb 10, 1997
Dob violation - dismissed
ECB violations · 21
- Class - 2
Sec. 3307.2.1 failure to comply w/dot regulations. at time of inspection i observed proposed 5 sty residential new bldg complete to roof levvel w/on going work present. no one is currently working-however i obs
Apr 24, 2019
Resolve - Class - 2
On an energy compliance inspection i observed continuous insulation exterior wall at exp. (2) installed substandard contrary to approved plans on page (a505-01) please contact : energycodeinspections@building
Mar 13, 2019 · Penalty $1,000
Resolve - Class - 1
Failure to notify the development prior to the commencement of earthwork. at time of inspection, i observed an active job site of 5 story building erected and almost completed at interior (finishes)stage w/o no
Oct 1, 2018
Resolve - Class - 1
Housekeeping: at the time of my inspection of a 5 sty bldg currently at roof level w/construction operations in progress. i observed housekeeping not being adequately maintained as cement,wood & brick debri is
Aug 7, 2018 · Penalty $625
Resolve - Class - 1
Sec. 3309.10 roof protection: at the time of my inspection of a 5 sty bldg currently at rof level w/construction operations in progress. in respose to a public complaint from the adjancent property stating that
Aug 7, 2018 · Penalty $2,500
Resolve - Class - 2
Insulation placement do nto meet min requirements. nb #320909068 in anenergy compliance inspection i observed insulation on exp2 installed subsandard and not matching approved plans. rmdy: please contact energ
Mar 29, 2018
Resolve - Class - 1
Work does not conform to approved plans.at time of inspction obsered an active construction site with rebar work in progress.jobsite is a foundation stage.during inspection noted that the rakers located at soe
Aug 15, 2017
Resolve - Class - 1
Construction superintendent failed to perform duties as per rule.at time of inspection obseved an active construction site with rebar work in progress.jobsite is a foundation stage.during inspection noted sever
Aug 15, 2017 · Penalty $10,000
Resolve - Class - 2
Failure to comply with the commissioner order to file a certificate ofcorrection with the dob.this section aplies to ecb violation#35218560h;rem:file certificate of correction.
Aug 15, 2017
Resolve - Class - 2
Failure to comply with the commissioner order to file a certificate ofcorrection with the dob.this section applies to ecb violation #35218561j;rem:file certificate of correction.
Aug 15, 2017
Resolve
Show 11 more ↓
- Class - 1
Work does not conform to approved plans.at time of inspection observedan active construction site with rebar work in progress.jobsite is a foundation stage.during inspection noted that the contrctor excavated w
Aug 15, 2017 · Penalty $1,000
Resolve - Class - 1
Bc3303.11/failure to maintain required means of egress.at time of inspection observed an active construction site with rebar work in progress.during inspection noted that there was no means of egress from the c
Aug 15, 2017 · Penalty $1,600
Resolve - Class - 1
Bc3304.4.4/failure to provide 3'-6'guardrails around excavtion.at timeof inspection i observed workers working in excavation site with no guardrails around excavation at expo 4.rem:comply with code.
Aug 15, 2017 · Penalty $1,200
Resolve - Class - 2
Bc28-204.5/having falsely certified correction to ecb violation#35218560h;on 4-3-17 violation ws written for failure to provide adequate means of egress from excavation i re-inspected on 8-15-17 same condition
Aug 15, 2017
Resolve - Class - 2
Bc28-204.5/having falsely certified correction to ecb violation#35218561j;on 4-3-17 violation was written for no guardrails around excavation i re-inspected jobsite on 8-15-17 same condition exist,no guardrail
Aug 15, 2017
Resolve - Class - 1
Work does not conform to approved plans.at time of inspection observedan active construction site with rebar work in progress.jobsite is a foundation stage.during inspction noted that the rakers connection to t
Aug 15, 2017 · Penalty $1,000
Resolve - Class - 2
Jobsite fence not constructed pursuant subsection.at time of inspection observed an active construction site with rebar work in progress.jobsite at foundation stage.during inspection noted that there is missing
Aug 15, 2017
Resolve - Class - 1
Bc3307.7/failure to provide adequate means of egress from excavation.at time of inspection i did observe worker doing rebar work for foudation with no adequate means of egress.rem:comply with code.
Aug 15, 2017
Resolve - Class - 1
Work does not conform to approved construction documents. at the time of inspection,i did observe at exp#3. the excavation was not doing as per plans at an angle of 45 degrees or 1)slope. remedy: conform work
Apr 3, 2017 · Penalty $1,000
Resolve - Class - 1
Sec. 3304.7 failure to provide adequate means of egress,from excavation. at the time of inspection,i did observe workers doing rebar work for foundation w/no adequate egress. remedy: comply w/code.
Apr 3, 2017 · Penalty $400
Resolve - Class - 1
Sec. 3304.4.4 failure to provide 3'-6" guardrails around excavation. at the time of inspection,i did observed workers working in excavation site w/no guardrails around excavation. remedy: comply w/code.
Apr 3, 2017 · Penalty $400
Resolve
Complaints
- Unsanitary condition
Garbage/recycling storage
Aug 10, 2026 · Apt BLDG
Close - Heat/hot water
Entire building
Feb 9, 2026 · Apt BLDG
Close - Heat/hot water
Apartment only
Jan 28, 2026 · Apt 1B
Close - Heat/hot water
Apartment only
Dec 12, 2025 · Apt 3F
Close - Unsanitary condition
Mold
Jul 27, 2023 · Apt 2A
Close - Heat/hot water
Entire building
Feb 2, 2021 · Apt 5A
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Elevator apartment building (D1)
- Year built
- 2017
- Floors
- 5
- Residential units
- 26
- Building area
- 34,347 ft²
- Lot area
- 12,521 ft²
- Zoning
- R6B
- Community board
- 307
- Council district
- 38
- Block / lot
- 643 / 11
- Assessed value
- $3,363,750
- Landmark / historic district
- No
HPD registration #389395, last renewed Sep 16, 2025.
Questions about 186 21 Street
Who owns 186 21 Street?
The owner of record in NYC Department of City Planning PLUTO data is 21st Development Group LLC.
Does 186 21 Street have violations?
Yes. NYC HPD has recorded 10 housing violations at this property.
Is 186 21 Street rent stabilized?
NYC Department of Finance tax bills listed 8 rent-stabilized units here in 2024 (about 31% of its 26 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 186 21 Street built?
City records list 2017 as the year it was built.
How many apartments are in 186 21 Street?
It has 26 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.