221 Knickerbocker Avenue

221 Knickerbocker Avenue in Bushwick, Brooklyn, has 19 open HPD violations, 5 of them class C, and no rent-stabilized units are on its tax bill, as of Oct 25, 2026. StreetSpy grade: D (55/100).

Mixed residential & commercial · 4 units · Built 1931

StreetSpy grade: D (Poor, 55/100)

• 5 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• The owner has 2 buildings on record; 1 graded D or F.
• No rent-stabilized units on the tax bill. Increases aren't capped by stabilization, though Good Cause Eviction may still limit them.

More open violations per unit than 8 in 10 Brooklyn buildings this size.

• Repairs: High (19 open, 5 class C), records as of Oct 25, 2026
• Heat and hot water: No complaints, 12 mo, records as of Oct 25, 2026
• Pests: Clear (Owner reported none, 3 yr), records as of Oct 27, 2026
• Safety: Clear (No open DOB violations), records as of Oct 23, 2026
• Registration: Renewal not yet in city data, records as of Oct 3, 2026

How the grade works

Housing code violations (HPD)

19 open violations: 5 class C (immediately hazardous), 13 class B, 1 class A. 1 issued in the last 12 months. 26 on record. Oldest open violation issued 2007-11-27. Newest violation issued 2026-05-05.

0 closed in the last 90 days. Median 35 days from issue to close for the 1 violations closed in the last 12 months.

2 open violations are classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: Gas defect, kitchen, 3rd floor. PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT RANGE IN THE KITCHEN LOCATED AT APT 3R, 3rd STORY, APARTMENT AT EAST (apt 3R), issued 2008-07-14. HPD violation 7373307
• Class C: Door, lock or intercom defect (hallway). SECTION 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING HASP AND EYE BOLT CABLE OF BEING PAD LOCK AT SCUTTLE COVER AT PUBLIC HALL, 3rd STORY, issued 2008-07-14. HPD violation 7373352
• Class C: Floor or stair defect (hallway). REPLACE WITH NEW THE MISSING BALUSTERS AT PUBLIC HALL STAIRS, 2nd STORY, issued 2008-06-26. HPD violation 7345064
• Class C: Garbage not removed (exterior). SECTION 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE REAR YARD OF BUILDING, issued 2008-06-26. HPD violation 7345058
• Class C: Damaged plaster or paint, bathroom. REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR COLLAPSING CEILING AND WALLS AT COMMUNITY BATHROOM, 1st STORY, issued 2007-11-27. HPD violation 7027592
• Class B: Lighting defect (entrance). 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 REQUIRED., issued 2012-02-22. HPD violation 9334144
• Class B: Roaches, throughout the apartment, 2nd floor. ABATE THE NUISANCE CONSISTING OF VERMIN ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 2L), issued 2009-04-16. HPD violation 7823843
• Class B: Mice, throughout the apartment, 2nd floor. ABATE THE NUISANCE CONSISTING OF VERMIN MICE IN THE ENTIRE APARTMENT LOCATED AT APT 2L, 2nd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 2L), issued 2009-04-16. HPD violation 7823842

311 housing complaints

0 in the last 12 months, 0 in 5 years.

Bedbugs

The owner reported 0 infested units in the last 3 years of filings. HPD's bedbug filings are self-reported by the owner once a year; HPD does not inspect to confirm them.

• 2026: No bedbug filing on record for this year
• 2025: Owner reported 0 infested units
• 2024: Owner reported 0 infested units
• 2023: Owner reported 0 infested units
• 2022: Owner reported 0 infested units
• 2021: Owner reported 0 infested units

Buildings department (DOB)

No open DOB violations. 0 DOB violations on record. Check on DOB BIS.

Evictions and housing court

0 executed evictions in the last 3 years (0 on record). 0 open HPD cases; 0 harassment findings.

Rent stabilization

No rent-stabilized units on the tax bill.

Owner and management

Owner: HONG QING TANG. Managing agent: XIA XUN JIANG. This owner has 2 buildings on record, 1 graded D or F. See the full portfolio.

Last HPD registration Aug 31, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3031870007, HPD building ID 321196. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Jefferson St (L), 5 min walk
• DeKalb Av (L), 8 min walk
• Central Av (M), 8 min walk

How the grade is calculated

Sources: NYC HPD Housing Maintenance Code Violations, NYC 311 Service Requests, NYC HPD Bedbug Reporting, NYC Marshal Evictions (DOI), NYC HPD Housing Litigations, NYC DOB Violations, NYC DOF tax bills (via JustFix Who Owns What portfolio API, v2), NYC HPD Property Registration. Methodology. Report generated 2026-10-28.