340 21 Street
Brooklyn, NY 11215BBL 3-00898-0032Map
Owner of record: 340 Realty LLC
340 21 Street is a walk-up apartment building built in 1931 in Brooklyn, 11215. It has 8 residential units across 4 floors. The owner of record is 340 Realty LLC. HPD has recorded 58 housing violations here, most recently on May 1, 2026. 12 of the 50 most recent violations are still open. City tax records listed 8 rent-stabilized apartments here in 2024.
- HPD violations
- 58
- DOB violations
- 11
- ECB violations
- 1
- HPD complaints
- 20
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. The newest 10 per agency here; the full lists are a click away.
HPD housing violations · 58
- 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 - 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 19, 2025
Open — Info nov sent out - BHazardous
Properly repair with similar material the broken or defective stucco at south wall of the building , 1st story
Mar 6, 2025
Open — Nov certified late - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt 8, 4th story
Mar 6, 2025 · Apt 8
Closed — Violation closed - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 8, 4th story
Mar 6, 2025 · Apt 8
Open — Nov certified late - BHazardous
Provide an approved and operational carbon monoxide detecting device, installed in accordance with applicable law and rules. in the entire apartment located at apt 3, 2nd story
Mar 6, 2025 · Apt 3
Open — Nov certified late - BHazardous
Repair or replace the smoke detector defective in the entire apartment located at apt 3, 2nd story
Mar 6, 2025 · Apt 3
Open — Nov certified late - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinges in the entrance located at apt, 1st story
Mar 6, 2025
Closed — Violation closed - CImmediately hazardous
Replace or repair the self-closing doors that is missing or defective hinches at building entrance door
Mar 6, 2025
Closed — Violation closed - 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
Closed — Violation dismissed
DOB building violations · 11
- Low pressure boiler boiler required
Violation issued-failure to file 2018 external low pressure inspection
Jun 20, 2023
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2017 inspection report
Nov 8, 2019
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2014 inspection report
Oct 1, 2015
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2013 inspection report
Mar 3, 2015
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2011 inspection report
Mar 1, 2013
Dob violation - active - Low pressure boiler boiler required
Violation issued for failure to file annual boiler 2010 inspection report
Dec 13, 2011
Dob violation - active - Low pressure boiler boiler required
Lblvio-low pressure boiler boiler required
Dec 31, 2009
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 1, 2009
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 6, 2006
Dob violation - active - Boilers boiler required
Ll6291-local law 62/91 - boilers boiler required
Jan 31, 2005
Dob violation - active
ECB violations · 1
- Class - 2
Weilmclain steam boiler has the outside metal chimney base corroded+weather cap is missing@top+discharge pipe missing@safety valve+no chimney base cleanout@hwh connection+room light defective;correct violation+
May 12, 2025
Resolve
Complaints
- Unsanitary condition
Pests
Feb 15, 2021 · Apt 6
Close - Unsanitary condition
Pests
Jan 29, 2017 · Apt 8
Close - Unsanitary condition
Pests
Jan 29, 2017 · Apt 6
Close - Unsanitary condition
Pests
Jan 29, 2017 · Apt 7
Close - Unsanitary condition
Pests
Jan 29, 2017 · Apt 3R
Close - Unsanitary condition
Garbage/recycling storage
Jun 9, 2015 · Apt BLDG
Close - Electric
Power outage
Jun 9, 2015 · Apt BLDG
Close - Heating
Heat related
Oct 24, 2005 · Apt BLDG
Close - Nonconst
Rubbish
Jul 11, 2005 · Apt 6
Close - General
Mold
Jul 11, 2005 · Apt 6
Close
Sales history
No recorded sales in our data
Building details
- Building type
- Walk-up apartment building (C1)
- Year built
- 1931
- Floors
- 4
- Residential units
- 8
- Building area
- 5,884 ft²
- Lot area
- 2,504 ft²
- Zoning
- R6B
- Community board
- 307
- Council district
- 39
- Block / lot
- 898 / 32
- Assessed value
- $874,350
- Landmark / historic district
- No
HPD registration #317656, last renewed Sep 28, 2024.
Questions about 340 21 Street
Who owns 340 21 Street?
The owner of record in NYC Department of City Planning PLUTO data is 340 Realty LLC.
Does 340 21 Street have violations?
Yes. NYC HPD has recorded 58 housing violations at this property.
Is 340 21 Street rent stabilized?
NYC Department of Finance tax bills listed 8 rent-stabilized units here in 2024 (about 100% of its 8 apartments). To confirm a specific apartment, request its rent history from NYS Homes and Community Renewal.
When was 340 21 Street built?
City records list 1931 as the year it was built.
How many apartments are in 340 21 Street?
It has 8 residential units.
Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.