Alteration (Major) · DOB Job #123918644
400 West 23rd Street, Manhattan
- Borough
- Manhattan
- Neighborhood
- Chelsea-Hudson Yards
- Job Number
- 123918644
- Filing Type
- Alteration (Major)
- Status
- Plan Exam - Approved
- Stories Proposed
- 6 stories
- Height Proposed
- 74 ft
- Dwelling Units Proposed
- 20
- Estimated Cost
- $1K
- Last DOB Action
- Feb 23, 2026
- BBL (Borough-Block-Lot)
- 1007200047
- Owner / Applicant
- Ninth Realty Llc
- Architect / Engineer of Record
- Austin Regan (Registered Architect)
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40.74667, -74.00176 · Open in Google Maps →
Permits & Contractors on File
- Ninth Realtt LlcAL permit
Live from DOB Permit Issuance, cross-referenced by this job number — the business actually pulling the permit, not necessarily the filing applicant above.
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Source: NYC Department of Buildings, Job Application Filings.