| Owner | Filings | Most Recent |
|---|---|---|
| WATERMAN PROPERTIES | 37 | 09/25/2026 |
| CLASSIC CONSULTING GROUP | 3 | 09/13/2026 |
| 850 THIRD AVENUE OWNERS | 42 | 07/08/2026 |
| CHETRIT GROUP | 23 | 07/08/2026 |
| 850 THIRD AVENUE | 4 | 03/22/2026 |
| 850 THIRD AVENUE HOLDING LLC | 45 | 03/22/2026 |
| MPH HOLDINGS LLC | 2 | 03/22/2026 |
| EQUITY OFFICE PROPERTIES TRUST | 100 | 03/22/2026 |
| EOP 850 THIRD AVE LLC | 13 | 03/22/2026 |
| E O P 850 3RD AVENUE | 3 | 03/22/2026 |
| Date | Price | Unit | Seller → Buyer | $/sf |
|---|---|---|---|---|
| 01/08/2019 | $422.0M | — | 850 THIRD AVENUE HOLDING LLC → 850 THIRD AVENUE OWNER, LLC | $734/sf building |
| 03/30/2016 | $463.0M | — | — → — | $806/sf building |
| Firm | Filings | Most Recent |
|---|---|---|
| ALSIEUX ARCHITECTURE, LLC. | 2 | 07/30/2026 |
| SEVERUD ASSOCIATES CONSULTING ENGIN | 3 | 04/14/2026 |
| COSENTINI ASSOCIATES | 6 | 03/27/2026 |
| MDEAS ARCHITECTS | 4 | 03/27/2026 |
| HC PEC | 3 | 03/06/2026 |
| MOED DE ARMAS & SHANNON | 2 | 08/22/2025 |
| JACK GREEN ASSOCIATES | 7 | 11/19/2024 |
| SHAABAN ENGINEERING, LLC | 2 | 07/21/2022 |
| JOHN F. GIUSEFFI, ARCHITECT, PC | 1 | 08/23/2021 |
| JACK STONE ENGINEERS, PC | 1 | 08/23/2021 |
| A&M CONSULTING | 2 | 10/29/2019 |
| Representative | Filings | Most Recent |
|---|---|---|
| RIZZO GROUP | 7 | 03/21/2026 |
| WILLIAM VITACCO ASSOCIATES | 11 | 03/21/2026 |
| KAZAM CONSULTANTS | 4 | 03/21/2026 |
| DYNAMIC BUILDING CONSULTANTS | 4 | 03/21/2026 |
| Firm | Trade | Roles | Most Recent |
|---|---|---|---|
| TURNER CONSTRUCTION COMPANY | General Contractor | 11 | 07/10/2026 |
| JOHN GALLIN & SON, INC | General Contractor | 6 | 03/21/2026 |
| NATIONAL MAINTENANCE | Scaffold | 4 | 07/08/2026 |
| PJP INSTALLERS INC | General Contractor | 4 | 07/29/2026 |
| W.J. REGAN & COMPANY LLC | General Contractor | 3 | 03/21/2026 |
| VIP FIRE SPRINKLER INC | Fire Protection | 2 | 07/08/2026 |
| DONATO PLUMBING, INC | Plumbing | 2 | 07/08/2026 |
| WALSH, LINDA | Electrical | 1 | 03/21/2026 |
| KG SPRINKLER CORP | Fire Protection | 1 | 07/08/2026 |
| LEVINE, GEORGE | Fire Protection | 1 | 03/21/2026 |
| APITIUS, TIMOTHY | Electrical | 1 | 03/21/2026 |
| CLASSIC CONSULTING GROUP | General Contractor | 1 | 07/08/2026 |
| PAR PLUMBING CO., INC | Plumbing | 1 | 07/08/2026 |
| STANDARD FIRE PROTECT LLC | Fire Protection | 1 | 07/08/2026 |
| BANKS, KRISTOFER | Electrical | 1 | 03/21/2026 |
| BRANDL ELECTRIC INC. | Electrical | 1 | 03/22/2026 |
| KACHNIC, K | Electrical | 1 | 03/21/2026 |
| KLEIN, W | Electrical | 1 | 03/21/2026 |
| PRADDY, ANTHONY | Electrical | 1 | 03/21/2026 |
| THOMPSON, N | Electrical | 1 | 03/21/2026 |
| Agency | License # | Filings | Most Recent |
|---|---|---|---|
| CODEGREEN | 510 | 14 | 04/14/2026 |
| JACK GREEN ASSOCIATES | 422 | 6 | 11/19/2024 |
| MEP INSPECTIONS, INC | 1102 | 1 | 08/23/2021 |
| METROSPEC SIA | 6420 | 1 | 10/29/2019 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| DOB NOW | Suspended Scaffold | Permit Issued | SKYTRAC ACCESS GROUP LLC | 09/24/2026 |
| DOB NOW | Sidewalk Shed | Permit Issued | PJP INSTALLERS INC | 07/28/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 07/08/2026 |
| DOB NOW | Structural | Permit Issued | TURNER CONSTRUCTION COMPANY | 06/11/2026 |
| DOB NOW | Structural | Permit Issued | TURNER CONSTRUCTION COMPANY | 06/05/2026 |
| DOB NOW | Structural | Permit Issued | TURNER CONSTRUCTION COMPANY | 06/04/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | TURNER CONSTRUCTION COMPANY | 06/02/2026 |
| DOB NOW | Sprinklers | Permit Issued | KG SPRINKLER CORP | 06/02/2026 |
| DOB NOW | Sidewalk Shed | Permit Issued | SPRING SCAFFOLDING LLC | 05/28/2026 |
| DOB NOW | Suspended Scaffold | Permit Issued | CLASSIC CONSULTING GROUP | 05/18/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 05/13/2026 |
| DOB NOW | Plumbing | Permit Issued | DONATO PLUMBING, INC | 04/29/2026 |
| DOB NOW | Plumbing | Permit Issued | DONATO PLUMBING, INC | 04/29/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | TURNER CONSTRUCTION COMPANY | 04/21/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 04/21/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 04/21/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 03/23/2026 |
| DOB NOW | Suspended Scaffold | Permit Issued | KAY WATERPROOFING CORP. | 03/18/2026 |
| DOB NOW | Protection and Mechanical Methods | Permit Issued | PJP INSTALLERS INC | 03/09/2026 |
| DOB NOW | Construction Fence | Permit Issued | PJP INSTALLERS INC | 03/09/2026 |
| DOB NOW | Sidewalk Shed | Permit Issued | PJP INSTALLERS INC | 03/06/2026 |
| DOB NOW | General Construction | Permit Issued | TURNER CONSTRUCTION COMPANY | 08/27/2025 |
| DOB NOW | General Construction | Signed-off | W.J. REGAN & COMPANY LLC | 01/06/2025 |
| DOB NOW | Sprinklers | Signed-off | STANDARD FIRE SUPP CORP | 11/25/2024 |
| DOB NOW | Sign | Signed-off | NATIONAL MAINTENANCE, INC | 02/12/2024 |
| DOB NOW | Sign | Signed-off | NATIONAL MAINTENANCE, INC | 02/12/2024 |
| DOB NOW | Sign | Signed-off | NATIONAL MAINTENANCE, INC | 07/21/2022 |
| DOB NOW | Sign | Signed-off | NATIONAL MAINTENANCE, INC | 07/21/2022 |
| DOB NOW | Mechanical Systems | Permit Issued | JOHN GALLIN SON | 08/24/2021 |
| DOB NOW | General Construction | Permit Issued | JOHN GALLIN SON | 08/24/2021 |
| DOB NOW | Mechanical Systems | Signed-off | JOHN GALLIN SON | 01/27/2021 |
| DOB NOW | Plumbing | Signed-off | PAR PLUMBING CO., INC | 11/07/2019 |
| DOB NOW | Sprinklers | Permit Issued | VIP FIRE SPRINKLER INC | 10/17/2019 |
| DOB NOW | Sprinklers | Permit Issued | VIP FIRE SPRINKLER INC | 08/08/2019 |
| BIS | SP | ISSUED | RAEL AUTOMATIC SPR.CO INC | 03/12/2020 |
| BIS | OT | ISSUED | R.W. DAKE & CO.,INC | 09/11/2019 |
| BIS | OT | ISSUED | R.W. DAKE & CO.,INC | 08/30/2019 |
| BIS | PL | ISSUED | LAB PLBG & HTG CO INC | 04/04/2019 |
| BIS | OT | ISSUED | JOHN GALLIN & SON, INC | 03/25/2019 |
| BIS | OT | ISSUED | JOHN GALLIN & SON, INC | 03/25/2019 |
| Filed | Status | Contractor | Scope | Make / Model / Capacity |
|---|---|---|---|---|
| 04/14/2026 | Permit Issued | TURNER CONSTRUCTION COMPA | Air Conditioning Systems, Ventilation Systems | Cooling United Cool Air TBD 60 tons ×32 Climatemaster CLIMATE MASTER SB168 56,000 CFM · Wshp ×2 Climacool CLIMA COOL UWCS30AFS 125 tons · Chiller ×1 Ventilation N/A na 1 CFM ×1 |
| 04/06/2026 | Permit Issued | TURNER CONSTRUCTION COMPA | Ventilation Systems | Ventilation __Junk__ na 1 BTU ×1 |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 04/14/2026 | — | — | 183 heads |
| 04/06/2026 | Permit Issued | KG SPRINKLER CORP | 80 heads |
| 11/19/2024 | Signed-off | STANDARD FIRE PROTECT LLC | — |
| 05/29/2020 | — | — | 957 heads |
| 01/15/2020 | — | — | 22 heads |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 04/14/2026 | Permit Issued | DONATO PLUMBING, INC | Water/Sanitary |
| 04/06/2026 | Permit Issued | DONATO PLUMBING, INC | Water/Sanitary |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 03/25/2026 | Permit Issued | ALLRAN ELECTRIC OF NY LLC | General Wiring |
| 03/02/2026 | Permit Issued | ECNY ELEC'L CONTR'S, INC | — |
| 02/27/2026 | Permit Issued | TOP SHELF ELECTRIC CORP | — |
| 11/12/2024 | Complete | NEAD ELECTRIC INC. | 10 meters, 1 new_meters |
| 07/18/2023 | Permit Issued | AE ELECTRIC INC | General Wiring |
| 09/26/2022 | Permit Issued | NATIONAL MAINT. INC | — |
| 09/26/2022 | Permit Issued | NATIONAL MAINT. INC | — |
| 11/04/2019 | Complete | CORP. ELEC'L TECHNOLOGIES | — |
| 03/25/2019 | Complete | NJS ELEC'L SERVICES CORP. | General Wiring |
| 08/30/2018 | Complete | BRANDL ELECTRIC INC. | General Wiring |
| 05/07/2018 | Complete | UNITY ELECTRIC CO INC | — |
| 04/17/2018 | Complete | APPROVED ELEC CONT'G INC | General Wiring |
| 04/11/2018 | Complete | APPROVED ELEC CONT'G INC | General Wiring |
| 02/14/2018 | Complete | CAMPBELL & DAWES LTD ELEC | General Wiring |
| 01/23/2018 | Complete | BIGMAN BROS., INC. | — |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 04/14/2026 | Permit Issued | TURNER CONSTRUCTION COMPA | Steel, Concrete |
| 04/14/2026 | Permit Issued | TURNER CONSTRUCTION COMPA | Steel, Concrete |
| 04/06/2026 | Permit Issued | TURNER CONSTRUCTION COMPA | Steel |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 03/06/2026 | Permit Issued | PJP INSTALLERS INC | Fence |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 07/30/2026 | Permit Issued | CLASSIC CONSULTING GROUP | Suspended Scaffold (SC) |
| 03/17/2026 | Permit Issued | KAY WATERPROOFING CORP. | — |
| Date | Requirement | Inspector | Role |
|---|---|---|---|
| 03/27/2026 | HVAC-R and service water piping design and insulation | James Sullivan Jr | energy_progress |
| 03/27/2026 | Post-installed Anchors | James Sullivan Jr | special |
| 03/27/2026 | Structural Steel - Welding | James Sullivan Jr | special |
| 03/27/2026 | Structural Steel - High Strength Bolting | James Sullivan Jr | special |
| 03/27/2026 | Structural Steel - Details | James Sullivan Jr | special |
| 03/27/2026 | Structural Stability – Alterations of existing buildings | James Sullivan Jr | special |
| 03/27/2026 | Wall Panels, Curtain Walls, and Veneers | James Sullivan Jr | special |
| 03/27/2026 | Ventilation and air distribution system | James Sullivan Jr | energy_progress |
| 03/27/2026 | Maintenance information | James Sullivan Jr | energy_progress |
| 03/27/2026 | Shutoff dampers | James Sullivan Jr | energy_progress |
| 03/27/2026 | Electrical motors and elevators | James Sullivan Jr | energy_progress |
| 03/27/2026 | HVAC-R and service water heating system controls | James Sullivan Jr | energy_progress |
| 03/27/2026 | HVAC-R and service water heating equipment | James Sullivan Jr | energy_progress |
| 03/25/2026 | Structural Steel - Details | James Sullivan Jr | special |
| 03/24/2026 | Post-installed Anchors | James Sullivan Jr | special |
| 03/24/2026 | Duct leakage testing, insulation and design | James Sullivan Jr | energy_progress |
| 03/24/2026 | Ventilation and air distribution system | James Sullivan Jr | energy_progress |
| 03/24/2026 | HVAC-R and service water heating system controls | James Sullivan Jr | energy_progress |
| 03/24/2026 | Maintenance information | James Sullivan Jr | energy_progress |
| 03/24/2026 | Electrical motors and elevators | James Sullivan Jr | energy_progress |
| 03/24/2026 | HVAC-R and service water piping design and insulation | James Sullivan Jr | energy_progress |
| 03/24/2026 | Fire-Resistant Penetrations and Joints | James Sullivan Jr | special |
| 03/10/2026 | Lighting controls | James Sullivan Jr | energy_progress |
| 03/10/2026 | Interior lighting power | James Sullivan Jr | energy_progress |
| 03/10/2026 | Metering | James Sullivan Jr | energy_progress |
| Tenant | Space | Floors | Renovation projects |
|---|---|---|---|
| Hall Capital Partners | Office | Floor 20 | Project M00574753 |
| Discovery Frette | Office | — | Project M00332174 Project M00332179 Project M00332182 |
| Touch Tunes | Office | Floor 15 | Project M00243640 |