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Building report

899 Knickerbocker Avenue

Public records for this building, including violations, complaints, housing court cases and ownership details.

Built
1904
Units
12
Owner of record
SK 257 COOPER, LLC
Open HPD violations
14
HPD records on file
61

Violations at 899 Knickerbocker Avenue

61 on record
2026-09-08Class AOpen

§27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WITHIN THE COMMON AREA AT THE BUILDINGS ENTRANCE. FOR MORE INFORMATION ABOUT SIGNAGE REQUIREMENTS, PLEASE VISIT: HTTPS://WWW.NYC.GOV/SITE/HPD/SERVICES-AND-INFORMATION/REQUIRED-SIGNAGE.PAGE

HPD · 1520 · Record 19203139
2026-09-08Class COpen

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

HPD · 530 · Record 19203138
2026-09-08Class BOpen

§ 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

HPD · 1503 · Record 19203137
2026-09-08Class BOpen

§ 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE OBSTRUCTING BARS OR UNLAWFUL GATES FROM AT LEAST 1 WINDOW OR PROVIDE APPROVED TYPE GATE , IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

HPD · 522 · Record 19203136
2026-09-08Class BOpen

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE BATHROOM LOCATED AT APT 2A, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH

HPD · 508 · Record 19203135

Who owns 899 Knickerbocker Avenue?

Owner of record: SK 257 COOPER, LLC. An owner name can come from an earlier filing. Compare the latest HPD registration with the recorded deed before relying on it.

Apartments at 899 Knickerbocker Avenue

Recorded residential units: 12. Recorded year built: 1904. These building facts do not show current vacancies or when a particular apartment was renovated.

This tax lot appears in the RGB list based on 2024 building registrations, published as of November 2025. That is a building-level historical signal; it does not identify which apartments are stabilized today. Check the official rent-stabilized building lists.

Look up more about this building

See the full record for 899 Knickerbocker Avenue

The full report includes the grade, all 61 violations with dates and outcomes, housing court filings and ownership details.

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Included
  1. 01Overall grade and scores by category
  2. 02Details for all 61 HPD violations
  3. 03Housing court filings and outcomes
  4. 04Ownership history and LLC connections