| Owner | Filings | Most Recent |
|---|---|---|
| SL GREEN REALTY | 293 | 09/30/2026 |
| 450 PROPERTY OWNERS (US) LLC | 365 | 07/08/2026 |
| 450 PARK FEE OWNER LP | 1 | 03/22/2026 |
| NUCOR CONSTRUCTION | 1 | 03/22/2026 |
| C/O SL GREEN REALTY CORP | 1 | 03/22/2026 |
| 444 PARK AVE SOUTH OWNER | 1 | 03/22/2026 |
| 450 PK AVE LLC | 1 | 03/22/2026 |
| EMPIRE SCAFFOLD SYSTEM IN | 1 | 03/22/2026 |
| 450 PARK LLC C O TACONIC MGMT | 38 | 03/22/2026 |
| NEWMARK & COMPANY | 1 | 03/22/2026 |
| Date | Price | Unit | Seller → Buyer | $/sf |
|---|---|---|---|---|
| 06/24/2022 | $445.0M | — | — → — | $1,499/sf building |
| 05/22/2014 | $545.8M | — | 450 PARK AVENUE LLC → 450 PROPERTY OWNER (US), LLC | $1,838/sf building |
| Firm | Filings | Most Recent |
|---|---|---|
| WB ENGINEERS & CONSULTANTS PLLC | 50 | 07/28/2026 |
| LOFFREDO BROOKS ARCHITECTS P.C. | 7 | 04/14/2026 |
| FOGARTY FINGER ARCHITECTURE PLLC | 11 | 06/04/2024 |
| NDKAZALAS ARCHITECTURE P.C. | 1 | 01/12/2024 |
| ROBERT DERECTOR ASSOCIATES | 8 | 01/09/2024 |
| AKF ENGINEERS, LLP | 8 | 10/09/2023 |
| CANY ARCHITECTURE & ENGINEERING DPC | 1 | 09/15/2023 |
| HELLYER LEWIS SMITH INC | 1 | 09/06/2023 |
| GILSANZ MURRAY STEFICEK LLP | 2 | 08/25/2023 |
| AZ ARCHITECTURE D. P.C. | 4 | 06/12/2023 |
| ROSINI ENGINEERING, PC | 8 | 06/06/2023 |
| HC ARCHITECT, PC | 4 | 05/05/2023 |
| MOED DE ARMAS & SHANNON | 3 | 04/25/2023 |
| AMA CONSULTING ENGINEERS, PC | 5 | 03/10/2023 |
| TOHFAZ UDDIN PE PC | 1 | 10/26/2022 |
| ROBERT SILMAN ASSOCIATES | 1 | 10/20/2022 |
| THE EIPEL ENGINEERING GROUP, D.P.C. | 1 | 03/29/2022 |
| GENSLER | 3 | 03/28/2022 |
| CFS ENGINEERING, DPC | 3 | 12/27/2021 |
| JOHN F. GIUSEFFI, ARCHITECT, PC | 1 | 12/21/2021 |
| MOLONEY CONSULTING ENGINEERING PLLC | 1 | 12/08/2021 |
| THORNTON TOMASETTI | 2 | 10/14/2021 |
| TED MOUDIS ASSOCIATES | 1 | 04/26/2021 |
| JAROS BAUM & BOLLES | 4 | 03/05/2021 |
| PAUL PERDEK, PROF. ENG. PLLC | 1 | 04/11/2019 |
| Representative | Filings | Most Recent |
|---|---|---|
| WILLIAM VITACCO ASSOCIATES | 69 | 03/21/2026 |
| RIZZO GROUP | 59 | 03/21/2026 |
| A1 EXPEDITING SERVICE CORP. | 16 | 03/21/2026 |
| JP EXPEDITE | 8 | 03/21/2026 |
| METROPOLIS GROUP INC | 2 | 03/21/2026 |
| DIRECT ACCESS EXPEDITING, INC. | 2 | 03/21/2026 |
| MUNICIPAL BUILDING CONSULTANTS | 1 | 03/21/2026 |
| GILLMAN CONSULTING | 4 | 03/21/2026 |
| AE DESIGN SOLUTION | 2 | 03/21/2026 |
| Firm | Trade | Roles | Most Recent |
|---|---|---|---|
| STRUCTURE TONE, LLC | General Contractor | 25 | 07/08/2026 |
| JT MAGEN & COMPANY INC | General Contractor | 16 | 07/08/2026 |
| JRM CONSTRUCTION MGMT LLC | General Contractor | 12 | 07/08/2026 |
| JAMES E FITZGERALD INC | General Contractor | 12 | 09/30/2026 |
| CONCEPT CONSTRUCTION SERV | General Contractor | 11 | 07/08/2026 |
| NUCOR CONSTRUCTION CORP | General Contractor | 10 | 07/08/2026 |
| CLUNE CONSTRUCTION CO LP | General Contractor | 10 | 07/08/2026 |
| UPRIGHT FIRE PROTCTN LLC | Fire Protection | 8 | 07/08/2026 |
| MILLENIUM CENT CONTR CORP | General Contractor | 4 | 07/08/2026 |
| SIGNS CAD | Scaffold | 4 | 07/08/2026 |
| A&A PLUMBING CORP | Plumbing | 4 | 07/08/2026 |
| ABSOLUTE SPECIAL INSPTN | Fire Protection | 3 | 07/08/2026 |
| VERSATILE SERVICES LLC | General Contractor | 3 | 07/08/2026 |
| SKH MECHANICAL CORP | Fire Protection | 3 | 07/08/2026 |
| WARREN BUBAK | Electrical | 3 | 03/21/2026 |
| SIRINA FIRE PROT CORP | Fire Protection | 3 | 07/08/2026 |
| FERRAN CONTRACTING CORP | General Contractor | 3 | 03/21/2026 |
| PAR PLUMBING CO., INC | Plumbing | 3 | 07/08/2026 |
| ARMON MECHANICAL INC | Fire Protection | 2 | 07/08/2026 |
| A & M WARSHAW PLBG & HTG | Plumbing | 2 | 07/08/2026 |
| ASHLAND PLUMBING CORP | Plumbing | 2 | 07/08/2026 |
| LITESPEED ELECTRIC, INC | Electrical | 2 | 03/22/2026 |
| LEVINE, GEORGE | Fire Protection | 2 | 03/21/2026 |
| FULL CAPACITY FIRE CORP | Fire Protection | 2 | 07/08/2026 |
| RICHARD GRIMA | Electrical | 2 | 03/21/2026 |
| Agency | License # | Filings | Most Recent |
|---|---|---|---|
| WB ENGINEERING | 533 | 53 | 07/28/2026 |
| MILROSE CONSULTANTS LLC | 2003 | 7 | 01/09/2024 |
| DNA CONTROLLED INSPECTION | 554 | 12 | 10/09/2023 |
| ALAN MARGOLIN & ASSOC | 423 | 3 | 09/15/2023 |
| ATLANTIC ENGINEERINGLABOR | 1381 | 1 | 08/25/2023 |
| W. ALLEN ENGINEERING PLLC | 664 | 19 | 05/03/2023 |
| ROSINI ENGINEERING, PC | 3282 | 5 | 04/18/2023 |
| ATLAS ATC ENGINEERING INC | 8011 | 1 | 09/22/2022 |
| CFS ENGINEERING, PC | 615 | 3 | 12/27/2021 |
| MOLONEY CONSULTING ENGINE | 4904 | 1 | 12/08/2021 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| DOB NOW | General Construction | Permit Issued | JAMES E FITZGERALD INC | 09/29/2026 |
| DOB NOW | General Construction | Permit Issued | JAMES E FITZGERALD INC | 04/22/2026 |
| DOB NOW | Sprinklers | Permit Issued | ARMON MECHANICAL INC | 04/07/2026 |
| DOB NOW | Plumbing | Permit Issued | ARMON MECHANICAL INC | 04/07/2026 |
| DOB NOW | Sprinklers | Permit Issued | FIVE BOROUGH NYC LLC | 04/07/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | JAMES E FITZGERALD INC | 04/06/2026 |
| DOB NOW | Plumbing | Permit Issued | A&A PLUMBING CORP | 04/02/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | JAMES E FITZGERALD INC | 04/02/2026 |
| DOB NOW | General Construction | Permit Issued | JAMES E FITZGERALD INC | 03/31/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | STRUCTURE TONE, LLC | 03/31/2026 |
| DOB NOW | Plumbing | Signed-off | A&A PLUMBING CORP | 09/17/2025 |
| DOB NOW | Mechanical Systems | Signed-off | JAMES E FITZGERALD INC | 09/16/2025 |
| DOB NOW | Sprinklers | Signed-off | ARMON MECHANICAL INC | 09/09/2025 |
| DOB NOW | General Construction | Signed-off | JAMES E FITZGERALD INC | 08/27/2025 |
| DOB NOW | Sprinklers | Signed-off | CAPITOL FIRE SPRINKLER CO | 07/30/2024 |
| DOB NOW | Mechanical Systems | Signed-off | STRUCTURE TONE, LLC | 07/29/2024 |
| DOB NOW | General Construction | Signed-off | STRUCTURE TONE, LLC | 07/29/2024 |
| DOB NOW | General Construction | Permit Issued | STRUCTURE TONE, LLC | 07/08/2024 |
| DOB NOW | Sprinklers | Signed-off | H.J. FLOOD INC. | 06/11/2024 |
| DOB NOW | Sprinklers | Signed-off | H.J. FLOOD INC. | 05/02/2024 |
| DOB NOW | Structural | Permit Issued | FERRAN CONTRACTING CORP | 04/11/2024 |
| DOB NOW | Standpipe | Signed-off | H.J. FLOOD INC. | 03/27/2024 |
| DOB NOW | Sprinklers | Signed-off | H.J. FLOOD INC. | 03/26/2024 |
| DOB NOW | Mechanical Systems | Signed-off | STRUCTURE TONE, LLC | 02/27/2024 |
| DOB NOW | General Construction | Signed-off | STRUCTURE TONE, LLC | 02/27/2024 |
| DOB NOW | Standpipe | Signed-off | H.J. FLOOD INC. | 02/14/2024 |
| DOB NOW | Sprinklers | Signed-off | H.J. FLOOD INC. | 02/14/2024 |
| DOB NOW | Plumbing | Signed-off | PROSTAR PLUMBING AND HEAT | 02/05/2024 |
| DOB NOW | Sprinklers | Signed-off | A + SPRINKLER CORP | 02/05/2024 |
| DOB NOW | General Construction | Signed-off | CLUNE CONSTRUCTION CO LP | 01/22/2024 |
| DOB NOW | Mechanical Systems | Signed-off | CLUNE CONSTRUCTION CO LP | 01/22/2024 |
| DOB NOW | Sprinklers | Signed-off | LEGUCI PIPING&HEATING LLC | 01/17/2024 |
| DOB NOW | General Construction | Signed-off | STRUCTURE TONE, LLC | 01/16/2024 |
| DOB NOW | Plumbing | Signed-off | A&A PLUMBING CORP | 01/10/2024 |
| DOB NOW | General Construction | Signed-off | JAMES E FITZGERALD INC | 01/08/2024 |
| DOB NOW | Mechanical Systems | Signed-off | JAMES E FITZGERALD INC | 01/08/2024 |
| DOB NOW | Mechanical Systems | Signed-off | CONCEPT CONSTRUCTION SERV | 11/17/2023 |
| DOB NOW | Plumbing | Signed-off | A & M WARSHAW PLBG & HTG | 11/03/2023 |
| DOB NOW | Sprinklers | Signed-off | SKH MECHANICAL CORP | 09/19/2023 |
| DOB NOW | Sprinklers | Signed-off | FULL CAPACITY FIRE CORP | 09/15/2023 |
| Filed | Status | Contractor | Scope | Make / Model / Capacity |
|---|---|---|---|---|
| 07/28/2026 | Signed-off | JAMES E FITZGERALD INC | Air Conditioning Systems | Cooling Water Furnace V5AH018 500 CFM · Wshp ×1 |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 04/03/2026 | Permit Issued | FIVE BOROUGH NYC LLC | 169 heads |
| 04/03/2026 | Permit Issued | ARMON MECHANICAL INC | 173 heads |
| 09/04/2025 | Signed-off | ARMON MECHANICAL INC | 213 heads |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 07/10/2026 | Permit Issued | ARMON MECHANICAL INC | Water/Sanitary |
| 04/03/2026 | — | — | — |
| 04/03/2026 | — | — | — |
| 04/03/2026 | — | — | Water/Sanitary |
| 03/26/2026 | Permit Issued | A&A PLUMBING CORP | Water/Sanitary |
| 09/10/2025 | Signed-off | A&A PLUMBING CORP | Water/Sanitary |
| 09/04/2025 | — | — | — |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 04/28/2026 | Complete | A2K ELECTRIC CORP | General Wiring |
| 01/13/2025 | Complete | POWER-TECH INSTALL. ELEC' | General Wiring |
| 12/15/2024 | Complete | POWER-TECH INSTALL. ELEC' | General Wiring |
| 07/29/2024 | Permit Issued | BARRIOS ELECTRIC INC | — |
| 05/23/2024 | Complete | METROPOLIS ELECTRIC CORP | General Wiring |
| 04/24/2024 | Complete | TRIBORO ELEC'L CONTR'G CO | General Wiring |
| 04/10/2024 | Complete | POWER-TECH INSTALL. ELEC' | General Wiring |
| 02/20/2024 | Complete | POWER-TECH INSTALL. ELEC' | General Wiring |
| 10/18/2022 | Complete | ROCKMOR ELEC. ENTERPR INC | General Wiring |
| 10/17/2022 | Complete | POWER-TECH INSTALL. ELEC' | General Wiring |
| 03/17/2022 | Complete | KLEINKNECHT ELEC. CO.,INC | General Wiring |
| 02/22/2022 | Complete | NEAD ELECTRIC INC. | General Wiring |
| 01/31/2022 | Complete | KLEINKNECHT ELEC. CO.,INC | — |
| 01/26/2022 | Complete | ROCKMOR ELEC. ENTERPR INC | General Wiring |
| 10/15/2021 | Complete | KLEINKNECHT ELEC. CO.,INC | General Wiring |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 09/15/2023 | Permit Issued | FERRAN CONTRACTING CORP | Steel, Concrete |
| Date | Type | Result | Report |
|---|---|---|---|
| 07/20/2026 | Certified Remove/Cap - work done in accordance with code | Certified | View ↗ |
| 07/20/2026 | Certified Water and Sanitary-WS-Fixtures-Finish | Certified | View ↗ |
| 07/16/2026 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| 07/14/2026 | Certified Remove/Cap - work done in accordance with code | Certified | View ↗ |
| 06/18/2026 | Pass-Final PL - Up to 3 Requested Floors | Pass | View ↗ |
| 06/09/2026 | Fail-Final PL - Up to 3 Requested Floors | Fail | View ↗ |
| 05/28/2026 | Certified Gas-Gas-Piping-Roughing | Certified | View ↗ |
| 05/28/2026 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| 05/21/2026 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| 05/18/2026 | Pass-Final CND-Occupancy Inspection | Pass | View ↗ |
| 01/07/2026 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| 12/30/2025 | Certified Remove/Cap - work done in accordance with code | Certified | View ↗ |
| 12/30/2025 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 11/20/2025 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| 07/25/2025 | Pass-Final CND-Occupancy Inspection | Pass | View ↗ |
| 02/21/2025 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| 02/06/2025 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 11/22/2024 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| 11/15/2024 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 09/23/2024 | Pass-Final CND-Occupancy Inspection | Pass | View ↗ |
| 09/18/2024 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 09/12/2024 | Fail-Final CND-Occupancy Inspection | Fail | View ↗ |
| 09/10/2024 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 09/10/2024 | Certified Sprinkler-SP-Piping Dry/Wet-Underground | Certified | View ↗ |
| 09/06/2024 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| Date | Requirement | Inspector | Role |
|---|---|---|---|
| 07/29/2026 | Final | David Bonifacic | progress |
| 07/29/2026 | Metering | David Bonifacic | energy_progress |
| 07/29/2026 | HVAC-R and service water heating system controls | David Bonifacic | energy_progress |
| 07/29/2026 | Electrical motors and elevators | David Bonifacic | energy_progress |
| 07/29/2026 | Energy Code Compliance Inspections | David Bonifacic | progress |
| 07/29/2026 | Duct leakage testing, insulation and design | David Bonifacic | energy_progress |
| 07/29/2026 | Maintenance information | David Bonifacic | energy_progress |
| 07/29/2026 | HVAC-R and service water heating equipment | David Bonifacic | energy_progress |
| 07/29/2026 | Lighting controls | David Bonifacic | energy_progress |
| 07/29/2026 | Mechanical Systems | David Bonifacic | special |
| 07/29/2026 | HVAC-R and service water piping design and insulation | David Bonifacic | energy_progress |
| 07/29/2026 | Interior lighting power | David Bonifacic | energy_progress |
| 07/21/2026 | Final | David Bonifacic | progress |
| 07/21/2026 | HVAC-R and service water piping design and insulation | David Bonifacic | energy_progress |
| 07/21/2026 | HVAC-R and service water heating equipment | David Bonifacic | energy_progress |
| 07/21/2026 | Mechanical Systems | David Bonifacic | special |
| 07/21/2026 | Metering | David Bonifacic | energy_progress |
| 07/21/2026 | Duct leakage testing, insulation and design | David Bonifacic | energy_progress |
| 07/21/2026 | Electrical motors and elevators | David Bonifacic | energy_progress |
| 07/21/2026 | Energy Code Compliance Inspections | David Bonifacic | progress |
| 07/21/2026 | Lighting controls | David Bonifacic | energy_progress |
| 07/21/2026 | Maintenance information | David Bonifacic | energy_progress |
| 07/21/2026 | HVAC-R and service water heating system controls | David Bonifacic | energy_progress |
| 07/21/2026 | Interior lighting power | David Bonifacic | energy_progress |
| 07/13/2026 | Post-installed Anchors | David Bonifacic | special |
| Tenant | Space | Floors | Renovation projects |
|---|---|---|---|
| Citizens Bank | Office | Floor 6 | Project M00922907 |
| Aston Martin Lagonda Limited | Retail | Floor 1 | Project M00888533 Project M00866604 Project M00866620 Project M00866636 Project M00866654 Project M00853938 Project M08004731 Project M08004736 Project M08004738 Project M08008926 Project M08004708 |
| Bank United | Office | Floor 2, Mezzanine | Project M00682470 Project M00682498 Project M00696806 Project M00699569 Project M00682427 Project M00682116 Project M00638878 Project M00638615 Project M00638867 |
| Muzinich & Co | Office | Floors 18, 19 | Project M00632126 Project M00632098 Project M00632110 Project M00632133 Project M00632292 |
| Steadfast Financial | Office | Floors 20, 21 | Project M00492629 Project M00492627 |