What was permitted
Homeowners in Chelsea-Hudson Yards may notice extensive plumbing work underway at 424 West 33 Street. This project involves significant upgrades to the building's systems, as it's being partially converted from office space to residential units.
This permit was issued on May 4, 2026, with an estimated project cost of $2,601,000. The work is being managed by DEMAR PLUMBING CORP.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 403346495 |
|---|---|
| Work permit # | M01188248-S2-PL |
| Job filing number | — |
| Work type | Plumbing |
| Status | Permit Issued |
| Job description | Plumbing work associated with Alt-CO to partially convert existing office building to residential use. |
| Floor / unit | Cellar, Floor Number(s) 1 through 13, Roof |
| Estimated cost | $2,601,000 |
| Approved | December 5, 2025 |
| Issued | May 4, 2026 |
| Expires | June 1, 2026 |
| BBL | — |
| BIN | — |
Property owner
Not Applicable
Ernesto Bacalzo
Related searches
plumbingoffice to residential conversionChelsea-Hudson YardsManhattannew york citybuilding permit$2,601,000 project cost