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Building report

503 12th Street

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

Built
1916
Units
34
Owner of record
503-9 12 ST LLC
Open HPD violations
26
HPD records on file
265

Violations at 503 12th Street

265 on record
2026-06-23Class COpen

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT C2, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 568 · Record 19024377
2026-06-23Class COpen

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT C2, 2nd STORY, 1st APARTMENT FROM WEST AT NORTH

HPD · 569 · Record 19024376
2026-02-22Class BDismissed

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE MARBLE TREAD 5TH FROM BOTTOM AT PUBLIC HALL STAIRS, 1st STORY

HPD · 502 · Record 18661063
2026-02-22Class CDismissed

§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM WRONG INFORMATION AT PUBLIC HALL, 1st STORY

HPD · 671 · Record 18661062
2026-02-22Class CDismissed

§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LOCKED AT CELLAR AT BOILER ROOM

HPD · 672 · Record 18661061
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Who owns 503 12th Street?

Owner of record: 503-9 12 ST 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 503 12th Street

Recorded residential units: 34. Recorded year built: 1916. 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 503 12th Street

The full report includes the grade, all 265 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 265 HPD violations
  3. 03Housing court filings and outcomes
  4. 04Ownership history and LLC connections