Queens · Block 892 · Lot 37 · 11105

20-22 21 Avenue

1 floors · 9,480 sq ft · built 1948 · class K1 · owner of record: Twin Stone Co Llc

9open violations
$50,000ECB/OATH penalties owed
0HPD class C (immediately hazardous)
782dto Gas piping inspection (2028 cycle)

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

Compliance deadlines

RequirementDueStatus
Annual parapet observation Check
Local Law 126 · By December 31 each year
What this is

If the building has a parapet facing a street, sidewalk or other public way, a competent person (such as a mason, engineer or architect) must observe it every year and the owner keeps the report for DOB on request. Detached one- and two-family homes are exempt. Agency page

Dec 31, 2026
in 51 days
Keep the report on file (not filed with DOB)
Gas piping inspection (2028 cycle) Likely applies
Local Law 152 · During 2028
What this is

Buildings with gas piping (except one- and two-family homes) need a periodic gas piping inspection by a licensed master plumber every four years. Community district 1 is on the 2028 cycle; certification is filed with DOB after the inspection. Buildings with no gas piping file a certification instead. Agency page

Dec 31, 2028
in 782 days
Next cycle year 2028
Annual boiler inspection (1 boiler) Applies
Boiler inspection · By December 31 each year
What this is

Boilers are inspected each calendar year and the report is filed in DOB NOW: Safety within 14 days of the inspection (low-pressure boilers in residential buildings of 5 or fewer families are exempt). Latest report on record: 2026-04-21 (Accepted). Agency page

On file2026 reports accepted

Open violations

ECB / OATH (8) · $50,000 owed
IssuedViolationHearingBalance
May 19, 2025Unknown CLASS - 2
BC 3307.2 NO DOT PERMIT&FAIL TO MAINTAIN PEDESTRIAN WALKWAY@PERMITTED NB SITE OBSERVE JOB FENCE TO CURB+ROADWAY BARRIER ON STREET@EXP#1(21 ST)&2 (21 AVE)WITHOUT REQUIRED DOT PERMIT FOR OBSTRUCTION&EXP2 TEMPORAR
#39540382P
Jul 29, 2025
DEFAULT
$10,000
May 19, 2025Unknown CLASS - 2
BC 3314.1 SUPPORTED SCAFFOLD.@PERMITTED 3STORY NB SITE OBSERVE SUPPORTED SCAFFOLD ALONG EXP#3&4 UP TO ROOF LEVEL NOT MAINTAINED SAFE-GUARDRAIL SYSTEM NOT MAINTAINED/MISSING WHERE FALL HAZARDS PRESENT OF OVER 6'
#39540383R
Jul 29, 2025
DEFAULT
$10,000
Feb 22, 2024Construction CLASS - 2
DURING INSPECTION OBSERVED 3 STORY NEW BUILDING TOPPED OFF, UPON FURTHER OBSERVED SIDE WALK SHED AND OVERHEAD PROTECTION AT EXPOSURE 1, 3 AND 4 PARTIALLY INSTALLED. UPON RESEARCHED ON DOB WEBSITE DETERMINE THAT
#39525821M
Apr 30, 2024
DEFAULT
$6,250
Dec 19, 2023Construction CLASS - 2
INACTIVE CLOSED JOB SITE. I OBSERVED EXISTING FENCE AND SCAFFOLD PERMIT # Q00341538-I1-FN WITH EXPIRATION DATED 7/6/2023 AND Q08029175-I1-SFWITH EXPIRATION DATED 11/1/2023 IS EXPIRED. UPON SEARCH IN BIS AND DOB
#39524410N
Mar 5, 2024
IN VIOLATION
$1,250
Feb 3, 2023Construction CLASS - 2
CLOSED SITE OBSERVED CONSTRUCTION FENCE AT THE PERIMETER OF THE BUILDING WALKING AROUND THE PERIMETER FOLLOWING CONDITION NOTED CONSTRUCTION FENCE PANEL LEANING, VERTICAL POST OUT OF PLUMB, PROTRUDING NAILS, SP
#39512627X
Apr 11, 2023
DEFAULT
$5,000
Nov 28, 2022Construction CLASS - 2
TIME OF INSPECTION AT 3 STORY NEW BUILDING CONSTRUCTION ACTIVITIES IN PROGRESS OBSERVED CONCRETE EMBEDDED SAFETY STRAPS AT ALL FLOOR. UPON REQUEST SEE INSPECTION LOG FOR SAFETY STRAPS AND CONSTRUCTION SUPERIN
#39509557M
Feb 7, 2023
DEFAULT
$6,250
Jun 30, 2021Construction CLASS - 2
FAILURE TO MAINTAIN ADEQUATE HOUSEKEEPING PER SECTION REQUIREMENTS.OBSERVED CONSTRUCTION SITE BEING USED AS A DUMPING AREA.LARGE AMOUNTS OF DEBRIS,GARBAGE AND CONSTRUCTION COMBUSTIBLE MATERIALS HAVE BEEN REGULA
#35579311K
Sep 21, 2021
DEFAULT
$6,250
Jun 30, 2021Construction CLASS - 2
JOB SITE FENCE NOT CONSTRUCTED OR MAINTAINED PURSUANT TO SUBSECTION.OBSERVED CONSTRUCTION FENCE INSTALLED AT EXP #1 AND #2 UNDER PERMIT #Q00440557-FN EXPIRES 11/20/2021.FENCE IS PARTIALLY DETACHED NOT PAINT AS
#35579312M
Sep 21, 2021
DEFAULT
$5,000
DOB (1)
IssuedViolationStatus
Mar 13, 2025IMMEDIATE EMERGENCY
REMEDY: REPAIR CONSTRUCTION FENCE
#19067
DOB VIOLATION - ACTIVE
DOB NOW Safety (0)

None open.

HPD (0)

None open.

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 Nov 10, 2026, 10:34 AM ET. BBL 4008920037.

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