711 Knickerbocker Avenue

711 Knickerbocker Avenue in Bushwick, Brooklyn, has 17 open HPD violations, 6 of them class C, and 4 of 6 units are rent-stabilized, as of Oct 25, 2026. StreetSpy grade: F (38/100).

Mixed residential & commercial · 6 units · Built 1910

StreetSpy grade: F (Severe, 38/100)

• 6 immediately hazardous violations open (the class that covers no heat, pests, lead paint and similar).
• 1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a.
• The head officer on this registration is named on 5 buildings' registrations; 4 graded D or F.
• 4 of 6 units are rent-stabilized; 5 on the 2007 tax bill.

More open violations per unit than 7 in 10 Brooklyn buildings this size.

• Repairs: High (17 open, 6 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: Medium (1 open DOB violation), 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)

17 open violations: 6 class C (immediately hazardous), 6 class B, 5 class A. 0 issued in the last 12 months. 234 on record. Oldest open violation issued 2006-10-16. Newest violation issued 2025-09-19.

HPD recorded no violation closed here in the last 12 months.

1 open violation is classified rent-impairing under NY Multiple Dwelling Law section 302-a. Section 302-a; NY Courts guidance on getting repairs.

• Class C: Mice, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3R), issued 2024-11-29. HPD violation 17454079
• Class C: Roaches, throughout the apartment, 3rd floor. HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3R), issued 2024-11-29. HPD violation 17454080
• Class C: Broken window or sash, kitchen, 3rd floor. HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE WINDOW GLASS PANE AT LOWER SASH FIRST WINDOW FROM SOUTH AT WEST IN THE KITCHEN LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3R), issued 2023-07-25. HPD violation 16109980
• Class C: Leak or water damage, ceiling, kitchen, 3rd floor. , 2027 HMC: PROPERLY REPAIR THE SOURCE AND ABATE THE EVIDENCE OF A WATER LEAK AT CEILING IN THE KITCHEN LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3R), issued 2023-07-25. HPD violation 16109977
• Class C: Fire escape defect, 4th room from the north, 3rd floor. , 2007 ADM CODE REMOVE THE ILLEGAL FASTENING KEY OPERATED LOCK AT ROOM DOOR TO FIRE ESCAPE IN THE 4th ROOM FROM NORTH LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST (apt 3R), issued 2019-01-22. HPD violation 12861296
• Class C: Missing window guards, throughout the apartment, 3rd floor. SECTION 27-2043.1 HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 3; WG TO REPLACE = 0; WG TO REPAIR = 0; IN THE ENTIRE APARTMENT LOCATED AT APT 3F, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH (apt 3F), issued 2016-03-30. HPD violation 11175104
• Class B: Mold, bathroom, 3rd floor. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... AT LESS THAN 10 SQFT CEILING IN THE BATHROOM CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM NORTH AT EAST ORIGINAL VIOLATION 17907811 ISSUED 20-MAY-25 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b). (apt 3R), issued 2025-09-19. HPD violation 18245089
• Class B: Mold, ceiling, bathroom, 3rd floor. HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... APPROXIMATELY 10 SQFT AT THE CEILING IN THE BATHROOM LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH (apt 3R), issued 2024-11-29. HPD violation 17454075

311 housing complaints

2 in the last 12 months, 11 in 5 years. Most common: Paint/Plaster (1), Water Leak (1).

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: No bedbug filing on record for this year

Buildings department (DOB)

1 open DOB violation, a Local Law violation issued before 2000. 5 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

4 of 6 units rent-stabilized as of 2024. Stabilized renewals: 0% for one year and 0% for two years under RGB Order #58 (Oct 1, 2026 to Sep 30, 2027).

Rent-stabilized units on city tax bills: 4 in 2024, 5 in 2007. Source: DOF tax bills for 2007 and 2024; years with no bill on file are left out.

Owner and management

Owner: 711 NYC LLC. Head officer: GUY ALTBERG. Managing agent: GUY ALTBERG. This owner has 5 buildings on record, 4 graded D or F. See the full portfolio.

Last HPD registration Jul 23, 2025. Registration on file through Sep 1, 2026; renewal not yet in the city's data.

Tax lot and city IDs

BBL 3033920010, HPD building ID 321397. HPD Online, ACRIS, DOB BIS.

Nearest subway

• Halsey St (L), 7 min walk
• Myrtle-Wyckoff Avs (M), 7 min walk
• Myrtle-Wyckoff Avs (L), 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.