Brooklyn · Block 5550 · Lot 6 · 11204

6411 21 Avenue

2 floors · 2 apartments · 1,760 sq ft · built 1920 · class B3 · owner of record: 6411 21st Ave Llc

16open violations
$7,500ECB/OATH penalties owed
1HPD class C (immediately hazardous)
306dto Annual property registration

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New violations the morning after they're issued, plus deadline reminders. Free for one building.

Compliance deadlines

RequirementDueStatus
Annual property registration Check
HPD registration · September 1 each year
What this is

Residential buildings with three or more units, and one- and two-family homes the owner doesn't occupy, register with HPD every year ($13 fee). An unregistered building can't start a nonpayment case in Housing Court and faces civil penalties. Agency page

Sep 1, 2027
in 306 days
Required only if the owner doesn't live there

Open violations

ECB / OATH (4) · $7,500 owed
IssuedViolationHearingBalance
Jun 7, 2024Construction CLASS - 2
FAILURE TO COMPLY WITH THE COMMISSIONER'S ORDER TO FILE A CERTIFICATE OF CORRECTION WITH THE DEPARTMENT OF BUILDINGS. AT TIME OF INSPECTION, NO CERTIFICATE OF CORRECTION FILED FOR SUMMONSES #39106353Y AND 39106
#39116269K
Feb 19, 2026
IN VIOLATION
$1,250
Feb 20, 2024Construction CLASS - 1
WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AND/OR APPROVED AMENDMENTS. APPLICATION (JOB) #340188790 FILED FOR INTERIOR RENOVATION, MINOR EXTERIOR WORK, AND GARAGE. AT TIME OF INSPECTION, OBSERVED
#39106352M
Feb 19, 2026
IN VIOLATION
$2,500
Oct 3, 2023Construction CLASS - 2
PERMIT 340188790 WAS ISSUED 04-21-2023 FOR INTERIOR RENOVATION OF THE CELLAR FIRST & SECOND FLOORS AS SEEN ON PG A.100.01 & A.200.01, AT THIS INSPECTION A THIRD FLOOR NOT SHOWN ON THE APPROVED PLANS HAS BEEN AD
#39096290J
Mar 6, 2024
IN VIOLATION
$1,250
Oct 3, 2023Construction CLASS - 1
JOB 340188790 ISSUED 04-21-23 FOR INTERIOR WORK ON CELLAR FIRST AND SECOND FLOORS SEEN ON A100.01 & A200.01 OF THE PLANS. A THIRD FLOOR HAS BEEN ADDED AS SEEN IN EXTERIOR PHOTOS & IN JOB B00933549 FILED 09-13-2
#39096291L
Mar 6, 2024
IN VIOLATION
$2,500
DOB (2)
IssuedViolationStatus
Jun 1, 2022CONSTRUCTION
W/O PERMIT. OBSERVED NEW ADDITION STRUCTURE AT FRONT WITH GARAGE DOOR AND SIDE DOOR ATTACHED TO THE HOUSE APPROX.8"WX 10"L X12" H. ALSO OBSE RVED IN BASEMENT NEW PLUMBING, NEW ELECTRIC CABLES,NEW C JOIST FRAMING
#31101GO
VIOLATION WORK WITHOUT PERMIT - ACTIVE
Jun 1, 2022CONSTRUCTION
FAILURE TO MAINTURE BUILING IN CODE COMPLIANT MANNER OBSERVED EXCESSIVE GARAGE DEBRIS AROUND PROPERTY IN BASEMENT. REMEDY: REPAIR AND/OR REPLACE, REMOVE EXCESSIVE DEBRIS GARAGE
#C31102GO
DOB VIOLATION - ACTIVE
DOB NOW Safety (0)

None open.

HPD (14) · C 1 · B 10 · A 3
IssuedClassViolationCorrect by
Jan 31, 2014BApt 1STFL · SECTION 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR CEILING IN THE KITCHEN LOCATED AT APT 1STFL, 1st STORYMar 7, 2014
Jan 31, 2014BApt 1STFL · SECTION 27-2026, 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE KITCHEN LOCATED AT APT 1STFL, 1st STORYMar 7, 2014
Jan 31, 2014BSECTION 27-2005 ADMIN. CODE: PROPERLY SECURE THE LOOSE WOOD TREAD 9TH FROM BOTTOM UP IN STAIR AT BASEMENTMar 7, 2014
Jan 31, 2014BApt 1STFL · SECTION 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENTIRE APARTMENT LOCATED AT APT 1STFL, 1st STORYMar 7, 2014
Jan 31, 2014BSECTION 27-2005 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF OFFENSIVE ODOR AT BASEMENTMar 7, 2014
Jan 31, 2014BApt 1STFL · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1STFL, 1st STORYMar 7, 2014
Sep 2, 2010BApt 1FL · SECTION 27-2005 ADMIN. CODE: PROPERLY SECURE THE LOOSE ELECTRIC OUTLET IN THE 1st ROOM FROM NORTH AT WEST LOCATED AT APT 1FL, 1st STORYOct 7, 2010
Sep 2, 2010BApt 1FL · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 1FL, 1st STORYOct 7, 2010
Sep 2, 2010BApt 1FL · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 1FL, 1st STORYOct 7, 2010
Sep 2, 2010BApt 1FL · SECTION 27-2018 ADMIN. CODE: ABATE THE NUISANCE CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 1FL, 1st STORYOct 7, 2010
Sep 2, 2010AApt 1FL · SECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK AT DOOR IN THE ENTRANCE LOCATED AT APT 1FLDec 6, 2010
Sep 2, 2010AApt 1FL · SECTION 27-2013 ADMIN. CODE: PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT WALLS AND CEILING IN THE ENTIRE APARTMENT LOCATED AT APT 1FL, 1st STORYDec 6, 2010
Sep 2, 2010AApt 1FL · SECTION 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR CEILING AND WALLS IN THE KITCHEN LOCATED AT APT 1FL, 1st STORYDec 6, 2010
Sep 2, 2010CSECTION 27-2005 ADMIN. CODE: PROPERLY REPAIR THE BROKEN OR DEFECTIVE LOCK STREET DOOR TO BUILDING AT PUBLIC HALL, 1st STORYSep 8, 2010

Check the agency records

Always confirm on the city's own systems before acting: DOB BIS property profile · DOB NOW · HPD Online · Pay ECB/OATH penalties (CityPay)

City records as of Oct 30, 2026, 12:47 PM ET. BBL 3055500006.

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