2026-05-06Class ADismissed
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD · 1507 · Record 18893329
Building report
423 Throop Avenue
Public records for this building, including violations, complaints, housing court cases and ownership details.
- Built
- 1931
- Units
- 6
- Owner of record
- THROOP INVESTORS ONE LLC
- Open HPD violations
- 177
- HPD records on file
- 276
Violations at 423 Throop Avenue
276 on record2025-06-11Class ADismissed
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD · 1507 · Record 18004050
2024-04-12Class ADismissed
(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
HPD · 1507 · Record 16874555
2023-11-21Class IDismissed
§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISES FOR NONPAYMENT OF RENT UNTIL A VALID REGISTRATION STATEMENT IS FILED.
HPD · 780 · Record 16431483
2023-11-14Class BOpen
§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
HPD · 702 · Record 16378966
Most serious open violation
2023-11-08Class COpen
§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED DOOR AT BOILER ROOM, 1st STORY
HPD · 672 · Record 16368574
177 open · 276 total on recordSee 176 more open violations
Who owns 423 Throop Avenue?
Owner of record: THROOP INVESTORS ONE 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 423 Throop Avenue
Recorded residential units: 6. Recorded year built: 1931. 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 423 Throop Avenue
The full report includes the grade, all 276 violations with dates and outcomes, housing court filings and ownership details.
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Included
- 01Overall grade and scores by category
- 02Details for all 276 HPD violations
- 03Housing court filings and outcomes
- 04Ownership history and LLC connections