What was permitted
Significant foundation work is planned for 809 Madison Avenue in Manhattan's Upper East Side-Carnegie Hill neighborhood. This application is for foundation work related to both horizontal and vertical building enlargement.
This permit was issued on October 9, 2026, with a substantial estimated project cost of $750,000. CONSTRUCTION MANAGERS * is listed as the General Contractor.
Plan a similar project
Want work like this done at your place?
Tell us what you have in mind. We scope it, price it against work like this in Manhattan, and lines up the right contractor. You approve; we handle the back-and-forth.
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 | 846181241 |
|---|---|
| Work permit # | M01262427-S1-FO |
| Job filing number | — |
| Work type | Foundation |
| Status | Permit Issued |
| Job description | DevHUB Consultation 7.18.2025 @2pm. Application filed for foundation work associated with horizontal and vertical enlargement. |
| Floor / unit | Cellar-SO-5601-M01262427-I1, Cellar-SO-7530-M01262427-I1, Underground |
| Estimated cost | $750,000 |
| Approved | September 16, 2026 |
| Issued | October 9, 2026 |
| Expires | November 4, 2026 |
| BBL | — |
| BIN | — |
Property owner
Macklowe Properties
Simone Sarcona
Related searches
foundationManhattanUpper East Sidebuilding enlargementNew York Cityconstruction$100,000+