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Building report

835 Clarkson Avenue

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

Built
1936
Units
25
Owner of record
THE CLARKSON WINTHROP GROUP LLC
Open HPD violations
50
HPD records on file
544

Violations at 835 Clarkson Avenue

544 on record
2026-02-01Class COpen

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... GREATER THAN 10 SQ FT AT WEST WALL IN THE 1st ROOM FROM NORTH AT WEST LOCATED AT APT 4G, 4th STORY, 1st APARTMENT FROM WEST AT NORTH ORIGINAL VIOLATION 18613377 ISSUED 01-FEB-26 HAS BEEN UPGRADED TO CLASS C PER ADMINISTRATIVE CODE 27-2017.3a(5)(a) or (b).

HPD · 550 · Record 18955372
2026-02-01Class BDismissed

§ 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 DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 4G, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 1503 · Record 18613380
2026-02-01Class BDismissed

§ 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 DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 4G, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 1503 · Record 18613379
2026-02-01Class CDismissed

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 4G, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 569 · Record 18613378
2026-02-01Class BClosed

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... GREATER THAN 10 SQ FT AT WEST WALL IN THE 1st ROOM FROM NORTH AT WEST LOCATED AT APT 4G, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 550 · Record 18613377

Who owns 835 Clarkson Avenue?

Owner of record: THE CLARKSON WINTHROP GROUP 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 835 Clarkson Avenue

Recorded residential units: 25. Recorded year built: 1936. 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 835 Clarkson Avenue

The full report includes the grade, all 544 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 544 HPD violations
  3. 03Housing court filings and outcomes
  4. 04Ownership history and LLC connections