| Owner | Filings | Most Recent |
|---|---|---|
| NYC School Construction Authority | 62 | 09/13/2026 |
| Date | Price | Unit | Seller → Buyer | $/sf |
|---|---|---|---|---|
| 06/20/2018 | $28.0M | — | 4509 EIGHTH LLC → New York City School Construction Authority | — not available |
| 05/27/2015 | $15.8M | — | 86-02 NORTHERN LLC → 4509 EIGHTH LLC | — not available |
| Firm | Filings | Most Recent |
|---|---|---|
| Dseny Engineering Services | 4 | 07/20/2026 |
| Thornton Tomasetti | 2 | 10/15/2025 |
| RKTB Architects | 1 | 06/29/2025 |
| Rosa Consulting Engineers | 2 | 05/02/2023 |
| Howard I Shapiro & Associates | 8 | 08/25/2022 |
| Tohfaz Uddin PE | 1 | 06/15/2022 |
| Representative | Filings | Most Recent |
|---|---|---|
| Essential Remodeling | 16 | 03/21/2026 |
| Dseny Engineering Services | 10 | 03/21/2026 |
| A1 Expediting Service | 2 | 03/21/2026 |
| Albert Aronov Architect | 2 | 03/21/2026 |
| Firm | Trade | Roles | Most Recent |
|---|---|---|---|
| United Hoisting & Scaff | Scaffold | 14 | 07/08/2026 |
| York Scaffold Equipment | Scaffold | 3 | 07/08/2026 |
| CVM Construction | General Contractor | 1 | 08/06/2026 |
| The Morganti Group | General Contractor | 1 | 07/08/2026 |
| CVM Construction | Scaffold | 1 | 08/06/2026 |
| Agency | License # | Filings | Most Recent |
|---|---|---|---|
| Twin Peaks | 317 | 2 | 10/15/2025 |
| Future Tech Consultants O | 589 | 6 | 05/02/2023 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| DOB NOW | Construction Fence | Permit Issued | CVM Construction | 08/05/2026 |
| DOB NOW | General Construction | Permit Issued | CVM Construction | 08/05/2026 |
| DOB NOW | Support of Excavation | Signed-off | The Morganti Group | 04/17/2023 |
| DOB NOW | Sidewalk Shed | Signed-off | United Hoisting & Scaff | 12/07/2022 |
| DOB NOW | Protection and Mechanical Methods | Signed-off | United Hoisting & Scaff | 12/06/2022 |
| DOB NOW | Supported Scaffold | Signed-off | United Hoisting & Scaff | 12/06/2022 |
| DOB NOW | Protection and Mechanical Methods | Signed-off | United Hoisting & Scaff | 10/27/2022 |
| DOB NOW | Supported Scaffold | Signed-off | York Scaffold Equipment | 10/05/2022 |
| DOB NOW | Supported Scaffold | Signed-off | York Scaffold Equipment | 08/05/2022 |
| DOB NOW | Sidewalk Shed | Signed-off | United Hoisting & Scaff | 03/10/2022 |
| DOB NOW | Supported Scaffold | Signed-off | United Hoisting & Scaff | 02/23/2022 |
| BIS | SP | ISSUED | A & F Fire Protection Co | 03/06/2026 |
| BIS | PL | ISSUED | WDF | 08/22/2025 |
| BIS | PL | ISSUED | Forsythe P&H | 01/22/2025 |
| BIS | SD | ISSUED | A & F Fire Protection Co | 09/30/2024 |
| BIS | — | ISSUED | The Morganti Group | 04/02/2024 |
| BIS | PL | ISSUED | Forsythe P&H | 01/30/2024 |
| BIS | PL | ISSUED | Forsythe P&H | 01/30/2024 |
| BIS | — | ISSUED | The Morganti Group | 11/08/2023 |
| BIS | PL | ISSUED | Civetta Mechanical | 07/14/2023 |
| BIS | EQ | ISSUED | The Morganti Group | 03/31/2023 |
| BIS | — | ISSUED | The Morganti Group | 03/30/2023 |
| BIS | SD | ISSUED | A & F Fire Protection Co | 03/15/2023 |
| BIS | — | ISSUED | The Morganti Group | 02/10/2023 |
| BIS | PL | ISSUED | Forsythe P&H | 02/08/2023 |
| BIS | PL | ISSUED | Forsythe P&H | 12/22/2022 |
| BIS | — | ISSUED | The Morganti Group | 11/21/2022 |
| BIS | PL | ISSUED | Civetta Mechanical | 07/13/2022 |
| BIS | — | ISSUED | The Morganti Group | 03/30/2022 |
| BIS | SD | ISSUED | A & F Fire Protection Co | 03/24/2022 |
| BIS | — | ISSUED | The Morganti Group | 03/17/2022 |
| BIS | PL | ISSUED | Forsythe P&H | 03/17/2022 |
| BIS | EQ | ISSUED | The Morganti Group | 03/15/2022 |
| BIS | OT | RE-ISSUED | The Morganti Group | 01/14/2022 |
| BIS | — | RE-ISSUED | The Morganti Group | 01/14/2022 |
| BIS | — | ISSUED | The Morganti Group | 09/28/2021 |
| BIS | PL | ISSUED | Forsythe P&H | 09/28/2021 |
| BIS | OT | ISSUED | The Morganti Group | 07/23/2021 |
| BIS | EQ | ISSUED | The Morganti Group | 02/03/2021 |
| BIS | OT | ISSUED | The Morganti Group | 12/28/2020 |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 07/10/2024 | Complete | Stanco System Electrical Cont | — |
| 03/20/2022 | Permit Issued | Ark Systems Electric | General Wiring, Lighting |
| 02/18/2022 | Complete | LCJ Electrical Contractors | — |
| 01/22/2020 | Permit Issued | Ark Systems Electric | 1 meters, 1 new_meters |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 10/15/2025 | Permit Issued | CVM Construction | 2 scope_items |
| 02/14/2022 | — | — | 1 scope_items |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 07/20/2026 | Permit Issued | CVM Construction | Fence |
| 06/21/2024 | — | — | Fence |
| 08/25/2022 | Signed-off | United Hoisting & Scaff | Scaffold, Sidewalk Shed |
| Date | Requirement | Inspector | Role |
|---|---|---|---|
| 10/06/2025 | Final | MAXIM KORNGOLD | progress |
| 10/06/2025 | Footing and Foundation | MAXIM KORNGOLD | progress |
| 10/06/2025 | Concrete - Cast-In-Place | MAXIM KORNGOLD | special |
| 08/04/2022 | Post-installed Anchors | Michael Marchese | special |
| 08/02/2022 | Post-installed Anchors | Michael Marchese | special |
| 02/14/2022 | Subgrade Inspections | — | special |
| 02/14/2022 | Excavations - Sheeting, Shoring, and Bracing | Michael Marchese | special |
| Tenant | Space | Floors | Renovation projects |
|---|---|---|---|
| P.S. 730K | Education | — | Project B01019588 Project B01069581 |
| P.S. 730 Brooklyn | Education | — | Project B00750488 |