| Owner | Filings | Most Recent |
|---|---|---|
| IRONWOOOD REALTY | 279 | 07/08/2026 |
| PACE ENGINEERING P.C. | 3 | 07/08/2026 |
| JJS BUILDERS | 5 | 07/08/2026 |
| HGC PARTNERS | 33 | 07/08/2026 |
| 635 MADISON FEE PROPERTY OWNER LLC | 1 | 03/22/2026 |
| TECTONIC BUILDERS | 2 | 03/22/2026 |
| MADISON FEE OWNER LLC C/O | 1 | 03/22/2026 |
| 635 MADISON FEE OWNER LLC | 3 | 03/22/2026 |
| TECRONIC BUILDERS INC | 1 | 03/22/2026 |
| WESTLAND MANAGEMENT CORP | 3 | 03/22/2026 |
| Date | Price | Unit | Seller → Buyer | $/sf |
|---|---|---|---|---|
| 06/29/2018 | $153.0M | — | 635 MADISON FEE OWNER LLC → 635 MADISON FEE PROPERTY OWNER LLC | $1,021/sf building |
| 09/11/2014 | $145.0M | — | 635 MADISON OWNER LLC → 635 MADISON FEE OWNER LLC | $967/sf building |
| Firm | Filings | Most Recent |
|---|---|---|
| VINCENT J. LIOTTA P.E. | 2 | 08/10/2026 |
| E4P CONSULTING ENGINEERING PLLC | 6 | 03/24/2026 |
| MEYERS+ ENGINEERS | 1 | 09/30/2025 |
| ARCHYTECX DESIGN AND ARCHITECTURE | 1 | 03/06/2025 |
| ATMOSPHERE DESIGN & ARCH PLLC | 3 | 09/09/2022 |
| GILSANZ MURRAY STEFICEK LLP | 1 | 09/01/2022 |
| TERJESEN ASSOCIATES ARCHITECTS PC | 4 | 12/23/2021 |
| R.J. MCGEE ENGINEERING, PLLC | 3 | 12/23/2021 |
| IAQ SYSTEMS INC | 3 | 06/30/2021 |
| KIMMERLE NEWMAN ARCHITECTS | 1 | 06/30/2021 |
| HNY CONSULTING ENGINEERS LLC | 2 | 01/27/2021 |
| DS&F ARCHITECT, PC | 1 | 01/19/2021 |
| TODD ZWIGARD ARCHITECTS | 1 | 05/11/2020 |
| GREEN DESIGN | 1 | 01/31/2020 |
| ASHRAF CORP | 1 | 01/15/2020 |
| NIEGO ASSOCIATES | 1 | 05/30/2019 |
| Representative | Filings | Most Recent |
|---|---|---|
| ATMOSPHERE DESIGN GROUP, | 2 | 03/21/2026 |
| JENNY FLORES EXPEDITING | 2 | 03/21/2026 |
| ADAM BERGMAN CONSTRUCTION AND DEVEL | 14 | 03/21/2026 |
| RIZZO GROUP | 4 | 03/21/2026 |
| NEW YORK SIGN CONSULTANTS | 2 | 03/21/2026 |
| ARCHETYPE CONSULTANTS | 14 | 03/21/2026 |
| OUTSOURCE CONSULTANTS, INC. | 6 | 03/21/2026 |
| JAM CONSULTANTS, INC. | 2 | 03/21/2026 |
| VINCENT J. LIOTTA P.E. | 1 | 03/21/2026 |
| Firm | Trade | Roles | Most Recent |
|---|---|---|---|
| MK CONSTRUCTION GROUP | General Contractor | 14 | 07/08/2026 |
| TECTONIC BUILDERS INC | General Contractor | 13 | 07/08/2026 |
| QUINTEROS CONSTRUCTION OF | General Contractor | 3 | 03/21/2026 |
| KENNEDY, DANIEL | Electrical | 3 | 03/21/2026 |
| ANSHELEWITZ, ALVIN | Electrical | 3 | 03/21/2026 |
| FOLOR INC | General Contractor | 3 | 07/08/2026 |
| ART + 1, INC | General Contractor | 2 | 04/09/2026 |
| MNK ENTERPRISES LLC | General Contractor | 2 | 07/08/2026 |
| CROSSFIELD PLBG.&HTG.CORP | Fire Protection | 2 | 07/08/2026 |
| A PLUS PLUMBING CORP | Plumbing | 2 | 07/08/2026 |
| AP PLUMBING & HVAC LLC | Plumbing | 2 | 07/08/2026 |
| PRACTICAL PLBG & HTG INC | Fire Protection | 1 | 07/08/2026 |
| SKINNER PLMNG & HTG CORP | Fire Protection | 1 | 09/03/2026 |
| A&A PLUMBING CORP | Plumbing | 1 | 07/08/2026 |
| PRACTICAL PLBG & HTG INC | Plumbing | 1 | 07/08/2026 |
| MAUCERI SIGN | Scaffold | 1 | 07/08/2026 |
| ABDUL AZIZ | Electrical | 1 | 03/21/2026 |
| NATIONAL MAINTENANCE | Scaffold | 1 | 07/08/2026 |
| AZIZ ABDUL | Electrical | 1 | 03/21/2026 |
| BRONXDALE ELECTRIC INC | Electrical | 1 | 03/22/2026 |
| DEGENNARO III, CHARLES | Electrical | 1 | 03/21/2026 |
| DEO SINGH | Electrical | 1 | 03/21/2026 |
| JEFFERSON NECKLES | Electrical | 1 | 03/21/2026 |
| O'CONNOR, MOXIE | Electrical | 1 | 03/21/2026 |
| PAUL BOCCIA | Electrical | 1 | 03/21/2026 |
| Agency | License # | Filings | Most Recent |
|---|---|---|---|
| VINCENT J. LIOTTA P. E. | 1974 | 2 | 08/10/2026 |
| HT ENGINEERING, PLLC | 6274 | 3 | 03/24/2026 |
| HANSEN ENGINEERING PC | 8174 | 1 | 09/30/2025 |
| GILSANZ MURRAY STEFICEK | 240 | 1 | 09/01/2022 |
| R.J. MCGEE ENGINEERING, P | 7878 | 4 | 12/23/2021 |
| CODEGREEN | 510 | 3 | 06/30/2021 |
| AK ENGINEERING PC | 678 | 1 | 01/26/2021 |
| SY ENGINEERING PLLC | 5149 | 4 | 11/10/2020 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| DOB NOW | Sprinklers | Permit Issued | SKINNER PLMNG & HTG CORP | 09/02/2026 |
| DOB NOW | Mechanical Systems | Signed-off | TECTONIC BUILDERS INC | 05/14/2026 |
| DOB NOW | Mechanical Systems | Permit Issued | ART + 1, INC | 10/29/2025 |
| DOB NOW | General Construction | Permit Issued | ART + 1, INC | 03/13/2025 |
| DOB NOW | Mechanical Systems | Permit Issued | MK CONSTRUCTION GROUP | 01/11/2024 |
| DOB NOW | Mechanical Systems | Permit Issued | MK CONSTRUCTION GROUP | 01/03/2023 |
| DOB NOW | Sprinklers | Signed-off | CROSSFIELD PLBG.&HTG.CORP | 01/05/2022 |
| DOB NOW | General Construction | Signed-off | MK CONSTRUCTION GROUP | 01/04/2022 |
| DOB NOW | Mechanical Systems | Permit Issued | MK CONSTRUCTION GROUP | 01/04/2022 |
| DOB NOW | Plumbing | Signed-off | CROSSFIELD PLBG.&HTG | 08/30/2021 |
| DOB NOW | Plumbing | Signed-off | A PLUS PLUMBING CORP | 08/25/2021 |
| DOB NOW | Sprinklers | Permit Issued | A + SPRINKLER CORP | 07/14/2021 |
| DOB NOW | General Construction | Permit Issued | TECTONIC BUILDERS INC | 07/14/2021 |
| DOB NOW | Plumbing | Signed-off | A PLUS PLUMBING CORP | 07/14/2021 |
| DOB NOW | Mechanical Systems | Permit Issued | TECTONIC BUILDERS INC | 07/13/2021 |
| DOB NOW | Plumbing | Signed-off | CROSSFIELD PLBG.&HTG | 06/29/2021 |
| DOB NOW | Sprinklers | Signed-off | CROSSFIELD PLBG.&HTG.CORP | 06/29/2021 |
| DOB NOW | Mechanical Systems | Permit Issued | MK CONSTRUCTION GROUP | 05/17/2021 |
| DOB NOW | General Construction | Signed-off | MK CONSTRUCTION GROUP | 05/12/2021 |
| DOB NOW | Sign | Signed-off | NATIONAL MAINTENANCE, INC | 03/01/2021 |
| DOB NOW | Plumbing | Signed-off | A&A PLUMBING CORP | 02/18/2021 |
| DOB NOW | General Construction | Permit Issued | FOLOR INC | 02/01/2021 |
| DOB NOW | Mechanical Systems | Permit Issued | FOLOR INC | 01/29/2021 |
| DOB NOW | Mechanical Systems | Signed-off | TECTONIC BUILDERS INC | 11/17/2020 |
| DOB NOW | Sprinklers | Signed-off | PRACTICAL PLBG & HTG INC | 11/17/2020 |
| DOB NOW | Plumbing | Signed-off | PRACTICAL PLBG & HTG INC | 11/12/2020 |
| DOB NOW | Construction Fence | Signed-off | TECTONIC BUILDERS INC | 10/21/2020 |
| DOB NOW | Mechanical Systems | Signed-off | QUINTEROS CONSTRUCTION OF | 02/20/2020 |
| DOB NOW | Supported Scaffold | Signed-off | MNK ENTERPRISES LLC | 02/04/2020 |
| DOB NOW | Sidewalk Shed | Signed-off | MNK ENTERPRISES LLC | 01/16/2020 |
| DOB NOW | Sign | Signed-off | MAUCERI SIGN CO., INC | 05/31/2019 |
| BIS | OT | ISSUED | TECTONIC BUILDERS INC | 12/05/2020 |
| BIS | OT | ISSUED | TECTONIC BUILDERS INC | 11/12/2020 |
| BIS | OT | ISSUED | INIFINITY MANAGEMENT CORP | 07/21/2020 |
| BIS | OT | ISSUED | ALFA CONSTRUCTION CORP | 06/29/2020 |
| BIS | OT | ISSUED | INIFINITY MANAGEMENT CORP | 02/14/2020 |
| BIS | OT | ISSUED | KEY RESTORATION CORP | 02/14/2020 |
| BIS | SP | ISSUED | RRP PLUMBING CORP | 01/28/2020 |
| BIS | OT | ISSUED | ALFA CONSTRUCTION CORP | 05/28/2019 |
| BIS | MH | ISSUED | KSW MECHANICAL,LLC | 05/20/2019 |
| Filed | Status | Contractor | Scope | Make / Model / Capacity |
|---|---|---|---|---|
| 03/24/2026 | Signed-off | TECTONIC BUILDERS INC | Air Conditioning Systems | Cooling Lg ARUM241BTE5 20 tons · Vrf Outdoor ×1 |
| 09/30/2025 | Permit Issued | ART + 1, INC | Heating and Air Conditioning Systems | Heat / Cool Mitsubishi Electric MXZ-SM60NAM 60,000 BTU · Condensing Unit ×6 PVFY-P48NAMU-E1 54,000 BTU · Vrf Indoor ×3 PVFY-P24NAMU-E1 27,000 BTU · Vrf Indoor ×2 PVFY-P30NAMU-E1 34,000 BTU · Vrf Indoor ×2 PVFY-P36NAMU-E1 40,000 BTU · Vrf Indoor ×1 PVFY-P54NAMU-E1 60,000 BTU · Vrf Indoor ×1 TPEP036OA140A 21,000 BTU · Vrf Indoor ×1 |
| 09/20/2022 | — | — | Air Conditioning Systems | Cooling Mitsubishi Electric PURY-EP216TNU-A 432,000 BTU · Vrf Outdoor ×2 |
| 12/23/2021 | Permit Issued | MK CONSTRUCTION GROUP | Others | Other United Cool Air VA20G3AHA 2,000 BTU · Condensing Unit ×4 |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 08/10/2026 | Permit Issued | SKINNER PLMNG & HTG CORP | — |
| 12/23/2021 | Signed-off | CROSSFIELD PLBG.&HTG.CORP | — |
| 06/30/2021 | Permit Issued | A + SPRINKLER CORP | — |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 08/10/2026 | — | — | — |
| 06/30/2021 | Signed-off | A PLUS PLUMBING CORP | Water/Sanitary |
| 05/11/2020 | — | — | Water/Sanitary |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 02/13/2023 | Permit Issued | BRUNI ELECTRIC INC | General Wiring |
| 07/30/2021 | Complete | WEBSITE ELECTRIC CORP. | General Wiring |
| 06/17/2021 | Permit Issued | E & M ELECTRICAL NY CORP | General Wiring |
| 06/16/2021 | Permit Issued | E & M ELECTRICAL NY CORP | — |
| 04/29/2021 | Complete | BRONXDALE ELECTRIC INC | General Wiring |
| 03/04/2020 | Permit Issued | LIT MODE ELECL CONTG INC | — |
| 01/14/2020 | Permit Issued | RICHARD NEU | — |
| 12/28/2019 | Complete | STEVEN FARKAS | — |
| 07/10/2019 | Complete | CONDUCTOR ELECL SVCS INC | General Wiring |
| 04/09/2019 | Complete | GOWNA ELECTRIC INC | General Wiring |
| 12/17/2018 | Complete | PRINCIPAL ELECTRICAL CORP | General Wiring |
| Filed | Status | Contractor | Scope |
|---|---|---|---|
| 09/01/2022 | — | — | Steel |
| Date | Type | Result | Report |
|---|---|---|---|
| 03/23/2022 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| 03/21/2022 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 02/09/2022 | Certified Water and Sanitary-WS-Fixtures-Finish | Certified | View ↗ |
| 01/07/2022 | Certified Sprinkler-SP-Fixtures-Finish | Certified | View ↗ |
| 01/03/2022 | Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test | Certified | View ↗ |
| 09/16/2021 | Certified Water and Sanitary-WS-Fixtures-Finish | Certified | View ↗ |
| 09/10/2021 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| 08/20/2021 | Certified Water and Sanitary-WS-Sanitary Piping-Roughing | Certified | View ↗ |
| Date | Requirement | Inspector | Role |
|---|---|---|---|
| 07/31/2026 | Sprinkler Systems | Vincent Liotta | special |
| 03/04/2026 | Post-installed Anchors | HENRY TORRES | special |
| 03/04/2026 | Mechanical Systems | HENRY TORRES | special |
| 03/04/2026 | Final | HENRY TORRES | progress |
| 03/04/2026 | Fire-Resistant Penetrations and Joints | HENRY TORRES | special |
| 08/26/2025 | Post-installed Anchors | Ryan Hansen | special |
| 08/26/2025 | Fire-Resistant Penetrations and Joints | Ryan Hansen | special |
| 08/26/2025 | Energy Code Compliance Inspections | Ryan Hansen | progress |
| 07/22/2025 | HVAC-R and service water heating system controls | Ryan Hansen | energy_progress |
| 07/22/2025 | Maintenance information | Ryan Hansen | energy_progress |
| 07/22/2025 | HVAC-R and service water heating equipment | Ryan Hansen | energy_progress |
| 07/22/2025 | HVAC-R and service water piping design and insulation | Ryan Hansen | energy_progress |
| 07/22/2025 | Duct leakage testing, insulation and design | Ryan Hansen | energy_progress |
| 07/16/2025 | Final | Ryan Hansen | progress |
| 07/16/2025 | Mechanical Systems | Ryan Hansen | special |
| 09/07/2022 | Lighting controls | HENRY TORRES | energy_progress |
| 09/07/2022 | Interior lighting power | HENRY TORRES | energy_progress |
| 07/18/2022 | Fire-Resistant Penetrations and Joints | HENRY TORRES | special |
| 07/18/2022 | HVAC-R and service water heating system controls | HENRY TORRES | energy_progress |
| 07/18/2022 | Duct leakage testing, insulation and design | HENRY TORRES | energy_progress |
| 07/18/2022 | Final | HENRY TORRES | progress |
| 07/18/2022 | Post-installed Anchors | HENRY TORRES | special |
| 07/18/2022 | Mechanical Systems | HENRY TORRES | special |
| 07/18/2022 | Sprayed fire-resistant materials | Philip Murray | special |
| 07/18/2022 | Structural Steel - Details | Philip Murray | special |
| Tenant | Space | Floors | Renovation projects |
|---|---|---|---|
| Suit Supply | Retail | Floors 1–3 | Project M01257008 Project M01188092 Project M00776477 |
| Manhattan Center for Vaginal Surgery | Medical / Healthcare | Floor 12 | Project M00528703 |
| Viva Eve | Medical / Healthcare | Floor 6 | Project M00516055 Project M00516772 Project M00494598 |
| Montblanc | Retail | Ground | Project M00452648 |