Interior Renovation: Duplex Apartment at 829 Park Avenue, Manhattan
829 PARK AVENUE, MANHATTAN, 10021 · Upper East Side-Carnegie Hill
What was permitted
An interior renovation project is underway for a duplex apartment on the prestigious Park Avenue in Manhattan's Upper East Side. The work involves non-structural demolition, general construction, and finishing touches, without altering the building's egress or occupancy.
This permit was issued on June 23, 2026, with an estimated project cost of $205,000. TJ EVERLASTING CONT CORP is the General Contractor for this apartment renovation.
Homeowners undertaking interior renovations on Park Avenue can expect costs around $205,000 for significant updates.
What it cost
Issued
June 23, 2026
Expires
March 25, 2027
License
General Contractor
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Filed by TJ EVERLASTING CONT CORP · 2 permits across 1 neighborhood
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 389395568 |
| Work Permit # | M01186407-I1-GC |
| Job Filing Number | — |
| Work Type | General Construction |
| Status | Permit Issued |
| Job Description | Interior renovation to existing Duplex Apt. #11B. Work to include non-structural demolition, general construction, and finishes. No change in egress or occupancy. |
| Floor / Unit | Floor Number(s) 11 through 12 |
| Estimated Cost | $205,000 |
| Approved | June 24, 2025 |
| Issued | June 23, 2026 |
| Expires | March 25, 2027 |
| BBL | — |
| BIN | — |
Property Owner
Alice Mahoney