Property Details
Assessment & Sales
Building Permits
146 on record · 114 activeGeneral ConstructionDOB NOWPERMIT ENTIREFiled May 14, 2026Est. cost $125KJob #M00742579-I1
General ConstructionDOB NOWON HOLD - PENDING SUPERSEDE OF APPLICANT OF RECORDFiled May 5, 2026Est. cost $125KJob #M00742579-P1
Cats RegistrationOtherCURRENTFiled Nov 1, 2024Job #443772
General ConstructionDOB NOWLOC ISSUEDFiled Aug 4, 2023Est. cost $1Job #M08027357-I1
General ConstructionDOB NOWLOC ISSUEDFiled Aug 4, 2023Est. cost $1Job #M08027365-I1
+ 141 more permits — view full report
Violations
82 on record · 4 open+ 1 more docketed judgment — view full report
DOB LegacyLandmarkACTIVEIssued Dec 13, 2024#2787215
DOB LegacyLandmarkACTIVEIssued Dec 13, 2024#2787216
DOB LegacyEGRADEACTIVEIssued Dec 1, 2021#2558564
+ 79 more violations on record — view full report
Get the Complete Report for 21 SOUTH WILLIAM ST
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View ReportFrequently Asked Questions
When was 21 SOUTH WILLIAM ST, Manhattan built?
The building at 21 SOUTH WILLIAM ST, Manhattan, NY 10004 was constructed in 1928. It is classified as a condo - multi-dwelling with 8 floors and 32 units. The building area is 23,980 sqft.
Are there building permits at 21 SOUTH WILLIAM ST, Manhattan?
Yes. 21 SOUTH WILLIAM ST, Manhattan, NY 10004 has 146 building permits on record, with 114 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (PERMIT ENTIRE) filed May 14, 2026.
Does 21 SOUTH WILLIAM ST, Manhattan have violations?
Yes. 21 SOUTH WILLIAM ST, Manhattan, NY 10004 has 82 violations on record, with 4 currently open. Breakdown: 50 DOB, 24 ECB, 8 HPD. Sources: NYC DOB, HPD, and ECB/OATH.
Does 21 SOUTH WILLIAM ST, Manhattan have docketed judgments?
Yes. 21 SOUTH WILLIAM ST, Manhattan, NY 10004 has 6 docketed judgments on record with the NYC Office of Administrative Trials & Hearings (OATH), with an open balance of $1,600. A docketed judgment is an enforceable money judgment entered by OATH after a hearing on a summons issued at this property; where the respondent is the property owner it can attach to the property as a lien.
What is the property tax assessment for 21 SOUTH WILLIAM ST?
21 SOUTH WILLIAM ST, Manhattan, NY 10004 has an assessed market value of $1.3M and a total assessed value of $601K (land: $32K). Assessment data is from the NYC Department of Finance (DOF).
When was 21 SOUTH WILLIAM ST last sold?
21 SOUTH WILLIAM ST, Manhattan, NY 10004 last sold for $775K on Mar 3, 2016. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.
What is the zoning for 21 SOUTH WILLIAM ST?
21 SOUTH WILLIAM ST, Manhattan, NY 10004 is zoned C5-5. 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.
Who owns 21 SOUTH WILLIAM ST?
21 SOUTH WILLIAM ST, Manhattan, NY 10004 is company-owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.
How do I get a full property report for 21 SOUTH WILLIAM ST?
Search 21 SOUTH WILLIAM ST on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report adds the complete title history, owner contacts, and a downloadable PDF.
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