Manhattan, NY 10027
Property records from NYC Department of Buildings, HPD, DOF & more
503 WEST 121 ST is a property located at 503 WEST 121 ST, Manhattan, NY 10027. It is classified as a elevator apartment - semi-fireproof. The building was constructed in 1910. It has 6 floors and 30 units. The building area is 30,498 square feet on a 7,194 sqft lot. The property is zoned R8. The assessed market value is $5.7M. The owner on file is TRUSTEES OF COLUMBIA UNIVERSITY. There are 20 building permits on record (10 active). There are 20 violations on record (6 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.
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+ 15 more violations on record — view full report
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Get Free ReportThe building at 503 WEST 121 ST, Manhattan, NY 10027 was constructed in 1910. It is classified as a elevator apartment - semi-fireproof with 6 floors and 30 units. The building area is 30,498 sqft.
Yes. 503 WEST 121 ST, Manhattan, NY 10027 has 20 building permits on record, with 10 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a dob_now_job_issued (LOC ISSUED) filed Feb 17, 2026.
Yes. 503 WEST 121 ST, Manhattan, NY 10027 has 20 violations on record, with 6 currently open. Breakdown: 10 DOB, 3 ECB, 7 HPD. Sources: NYC DOB, HPD, and ECB/OATH.
503 WEST 121 ST, Manhattan, NY 10027 has an assessed market value of $5.7M and a total assessed value of $2.6M (land: $135K). Assessment data is from the NYC Department of Finance (DOF).
503 WEST 121 ST, Manhattan, NY 10027 is zoned R8. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.
The owner on record for 503 WEST 121 ST, Manhattan, NY 10027 is TRUSTEES OF COLUMBIA UNIVERSITY (X). Ownership data is from NYC Department of Finance assessment rolls.
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