What was permitted
Residents near 821 Madison Avenue in the Upper East Side-Carnegie Hill neighborhood might observe interior demolition work. This permit is specifically for preparing spaces from the cellar up to the 5th floor for a sprinkler system installation.
Issued on April 16, 2026, with an estimated cost of $53,100, the demolition is being managed by AGGRESSIVE FIRE PROT LLC. This project focuses solely on interior demolition and does not involve any structural changes.
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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 | 113006368 |
|---|---|
| Work permit # | M01378240-S3-EW-SP |
| Job filing number | — |
| Work type | Sprinklers |
| Status | Permit Issued |
| Job description | interior demolition of cellar through 5th floors. No structural demolition. |
| Floor / unit | Cellar, Floor Number(s) 001 through 005 |
| Estimated cost | $53,100 |
| Approved | April 14, 2026 |
| Issued | April 16, 2026 |
| Expires | September 1, 2026 |
| BBL | — |
| BIN | — |
Property owner
Not Applicable
Jenny Zhan
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