Staten Island, NY 10305
Property records from NYC Department of Buildings, HPD, DOF & more
256 MASON AVE is a property located at 256 MASON AVE, Staten Island, NY 10305. It is classified as a office - professional building. The building was constructed in 1986. It has 3 floors and 3 units. The building area is 77,502 square feet on a 56,100 sqft lot. The property is zoned R3-1. The assessed market value is $53M. The owner on file is STATEN ISLAND UNIVERSITY HOSPITAL. There are 20 building permits on record (11 active). There are 20 violations on record (0 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 256 MASON AVE, Staten Island, NY 10305 was constructed in 1986. It is classified as a office - professional building with 3 floors and 3 units. The building area is 77,502 sqft.
Yes. 256 MASON AVE, Staten Island, NY 10305 has 20 building permits on record, with 11 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_other (PERMIT ENTIRE) filed Apr 14, 2026.
Yes. 256 MASON AVE, Staten Island, NY 10305 has 20 violations on record, with 0 currently open. Breakdown: 19 DOB, 1 ECB. Sources: NYC DOB, HPD, and ECB/OATH.
256 MASON AVE, Staten Island, NY 10305 has an assessed market value of $53M and a total assessed value of $23.9M (land: $1M). Assessment data is from the NYC Department of Finance (DOF).
256 MASON AVE, Staten Island, NY 10305 is zoned R3-1. 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 256 MASON AVE, Staten Island, NY 10305 is STATEN ISLAND UNIVERSITY HOSPITAL (Individual). Ownership data is from NYC Department of Finance assessment rolls.
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