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Elevator apt, fireproof with stores
423 WEST 120TH STREET
MANHATTAN · Morningside Heights · BIN 1059515
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1914Year Built
10Stories
D6Building Class
R8Zoning
90,827 sfGross Floor Area
80Units
LL97 CoveredRent Stabilized2 Active Violations 1 unresolved · 1 paperwork only ▸FISP: SWARMP
Elevator apt, fireproof with stores · Owner of record: Trustees of Columbia University · 12,615 sf lot · 7.2 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingEquipmentGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Permit Issued — active, not yet Signed-off
RoofFISP: CYCLE 9 REPAIRS1p · 1 filing · 12 docs
BulkheadFacade scaffold and safety lines1p · 1 filing · 8 docs
Site & exteriorColumbia University Facilities & OperationsUnder Construction42p · 4 filings · 20 docs
Filed — no permit issuedWater tank and bulkhead3p · 1 filing · 3 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Thornton Tomasetti206/03/2026
Arc205/12/2025
Wellworth Consulting112/11/2023
FL&M Engineering Design & Inspection210/25/2023
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Synergy Building Consultants103/21/2026
United Safety Consultants103/21/2026
Millennium Designs of New York203/21/2026
Millennium Designs203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Spring ScaffoldingScaffold907/08/2026
Twins ElectricElectrical303/21/2026
Doumas ElectricElectrical203/21/2026
Foster Electrical ServiceElectrical203/21/2026
Titan Construction ServicesGeneral Contractor204/09/2026
Kraft ElectricElectrical103/21/2026
Combined ElectricElectrical103/21/2026
Henry Restorationspecialty_contractor109/01/2026
Platinum Electrical ServiceElectrical103/21/2026
Top Shelf ElectricElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Walter T. Gorman, P.E., P268206/03/2026
1+1 Design Studio1039205/12/2025
Outsource Special Inspection2827205/12/2025
Building Lifecycle
All (120)Filed (10)Permit Issued (12)Signed Off (4)Facade (FISP) (15)Violation (60)Objection (1)Special Inspection (18)
08/31/2026
Permit issued — General Construction
M01407460-I1-GC
06/03/2026
Filed — Alteration
PROPOSED LOCALIZED SLAB REPLACEMENT AND REPAIRS, INCLUDING NEW CONCRETE RAMP, LANDING, STAIRS, AND ASSOCIATED STRUCTURAL REPAIRS AT THE SOUTH COURTYARD AND CELLAR. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01407460-S1
06/01/2026
Filed — Alteration
PROPOSED LOCALIZED SLAB REPLACEMENT AND REPAIRS, INCLUDING NEW CONCRETE RAMP, LANDING, STAIRS, AND ASSOCIATED STRUCTURAL REPAIRS AT THE SOUTH COURTYARD AND CELLAR. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01407460-I1
05/27/2026
Special inspection requirement — Post-installed Anchors
Walter Gorman
05/27/2026
Special inspection requirement — Final
Walter Gorman
05/27/2026
Special inspection requirement — Tenant Protection Plan Compliance
Walter Gorman
05/27/2026
Special inspection requirement — Structural Steel - Welding
Walter Gorman
05/27/2026
Special inspection requirement — Structural Steel - Details
Walter Gorman
05/27/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Walter Gorman
05/27/2026
Special inspection requirement — Tenant Protection Plan Compliance
Walter Gorman
05/27/2026
Special inspection requirement — Masonry
Walter Gorman
05/27/2026
Special inspection requirement — Post-installed Anchors
Walter Gorman
05/27/2026
Special inspection requirement — Sprayed fire-resistant materials
Walter Gorman
05/27/2026
Special inspection requirement — Concrete - Cast-In-Place
Walter Gorman
05/26/2026
Special inspection requirement — Final
Walter Gorman
01/08/2026
Signed off — Alteration
M00986324-I1
01/08/2026
Permit issued — Suspended Scaffold
M00986324-I1-SC
10/31/2025
Signed off — Alteration
M00674470-I1
10/31/2025
Signed off — Alteration
M00974927-I1
10/21/2025
Signed off — Alteration
Facade repairs. No change in use or occupancy
M00848822-I1
09/18/2025
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
07/30/2025
Cycle 9 facade report signed — SWARMP
06/30/2025
Cycle 9 facade report submitted
06/23/2025
Cycle 9 facade inspection completed
05/12/2025
Filed — Alteration
Facade repairs. No change in use or occupancy
M00848822-P1
05/12/2025
Special inspection requirement — Final
Joakim Aspegren
05/12/2025
Special inspection requirement — Tenant Protection Plan Compliance
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Hung Pui Ho
04/09/2025
Objection raised — Other
04/07/2025
Filed — Alteration
Installation of suspended scaffold for Local Law 11 Facade Inspections and Facade Repairs
M01206089-I1
03/13/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
Hung Pui Ho
03/13/2025
Special inspection requirement — Final
Joakim Aspegren
03/13/2025
Special inspection requirement — Tenant Protection Plan Compliance
JONAR MADRIAGA
03/12/2025
Permit issued — Sidewalk Shed
M00674470-I1-SH
03/11/2025
Permit issued — General Construction
M00848822-I1-GC
02/19/2025
Cycle 9 facade report submitted
02/19/2025
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/18/2025
Cycle 9 facade inspection completed
02/18/2025
Cycle 9 facade report signed — UNSAFE
01/07/2025
Filed — Alteration
M00986324-P1
06/13/2024
Permit issued — Suspended Scaffold
M00986324-I1-SC
05/29/2024
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/14/2024
Permit issued — Suspended Scaffold
M00986324-I1-SC
04/01/2024
Violation issued (HPD, closed)
A
03/21/2024
Violation issued (ECB, closed)
Construction
03/21/2024
Violation issued (ECB, closed)
Construction
03/14/2024
Permit issued — Sidewalk Shed
M00674470-I1-SH
02/22/2024
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/11/2024
Permit issued — Suspended Scaffold
M00986324-I1-SC
01/05/2024
Filed — Alteration
M00986324-I1
12/12/2023
Permit issued — Supported Scaffold
M00974927-I1-SF
12/11/2023
Filed — Alteration
M00974927-I1
10/25/2023
Filed — Alteration
M00674470-P1
10/19/2023
Permit issued — General Construction
M00848822-I1-GC
05/19/2023
Filed — Alteration
Facade repairs. No change in use or occupancy
M00848822-I1
03/10/2023
Permit issued — Sidewalk Shed
M00674470-I1-SH
03/16/2022
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/16/2022
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
03/14/2022
Violation issued (ECB, closed)
Construction
03/08/2022
Permit issued — Sidewalk Shed
M00674470-I1-SH
Latest 60 of 120 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedHenry Restoration08/31/2026
DOB NOWSuspended ScaffoldSigned-offTitan Construction Services01/08/2026
DOB NOWSidewalk ShedSigned-offSpring Scaffolding03/12/2025
DOB NOWGeneral ConstructionSigned-offTitan Construction Services03/11/2025
DOB NOWSuspended ScaffoldSigned-offTitan Construction Services06/13/2024
DOB NOWSuspended ScaffoldSigned-offTitan Construction Services05/14/2024
DOB NOWSidewalk ShedSigned-offSpring Scaffolding03/14/2024
DOB NOWSuspended ScaffoldSigned-offTitan Construction Services01/11/2024
DOB NOWSupported ScaffoldSigned-offSpring Scaffolding12/12/2023
DOB NOWGeneral ConstructionSigned-offTitan Construction Services10/19/2023
DOB NOWSidewalk ShedSigned-offSpring Scaffolding03/10/2023
DOB NOWSidewalk ShedSigned-offSpring Scaffolding03/08/2022
BISMHISSUEDGreenway USA06/13/2019
BISPLISSUEDAbsolute Plumbing & Heating05/15/2019
BISOTISSUEDGreenway USA05/06/2019
BISMHISSUEDJGT Contracting05/04/2018
BISOTISSUEDJGT Contracting05/04/2018
BISPLISSUEDAlafogiannis Plumbing & Heating04/06/2018
BISOTISSUEDThe Trustees of Columbia02/15/2018
BISOTISSUEDColumbia University04/07/2017
BISOTISSUEDColumbia University11/18/2016
BISOTISSUEDColumbia University01/21/2016
BISOTISSUEDColumbia University12/22/2015
BIS—ISSUEDColumbia University07/01/2015
BISOTISSUEDKay Waterproofing01/28/2015
BISPLISSUEDCC Controlled Plumbing Co11/08/2014
BISOTISSUEDColumbia University09/27/2014
BISPLISSUEDCC Controlled Plumbing Co09/26/2014
BISEQISSUEDRockledge Scaffold09/03/2014
BISOTISSUEDKay Waterproofing09/03/2014
BISPLISSUEDAlafogiannis Plumbing & Heating02/12/2014
BISOTISSUEDC C Controlled Combustion09/25/2013
BISPLISSUEDCC Controlled Plumbing Co09/25/2013
BISOTISSUEDColumbia University08/07/2013
BISOTISSUEDColumbia University06/19/2013
BISEQISSUEDWest New York Restoration of CT12/12/2012
BISPLISSUEDAbsolute Plumbing & Heating09/27/2012
BISPLISSUEDAbsolute Plumbing & Heating01/21/2011
BISOTISSUEDColumbia University12/08/2010
BISOTISSUEDKay Waterproofing10/13/2010
+ 22 more permits on file
4 projects · most recent 10/24/2022
General Wiring
FiledStatusContractorScope
10/24/2022CompleteKraft Electric—
02/04/2022CompleteTop Shelf Electric—
11/03/2020Permit IssuedPowerone Elect'l Contracting13 meters, 1 new_meters
06/09/2019CompletePlatinum Electrical ServiceGeneral Wiring
1 project · most recent 06/03/2026
Concrete
FiledStatusContractorScope
06/03/2026Permit IssuedHenry RestorationConcrete
1 project · most recent 04/07/2025
Suspended Scaffold (SC)
FiledStatusContractorScope
04/07/2025——Suspended Scaffold (SC)
▾Special Inspection Requirements (DOB NOW) — 18
DateRequirementInspectorRole
05/27/2026Post-installed AnchorsWalter Gormanspecial
05/27/2026FinalWalter Gormanprogress
05/27/2026Tenant Protection Plan ComplianceWalter Gormanspecial
05/27/2026Structural Steel - WeldingWalter Gormanspecial
05/27/2026Structural Steel - DetailsWalter Gormanspecial
05/27/2026Structural Stability – Alterations of existing buildingsWalter Gormanspecial
05/27/2026Tenant Protection Plan ComplianceWalter Gormanspecial
05/27/2026MasonryWalter Gormanspecial
05/27/2026Post-installed AnchorsWalter Gormanspecial
05/27/2026Sprayed fire-resistant materialsWalter Gormanspecial
05/27/2026Concrete - Cast-In-PlaceWalter Gormanspecial
05/26/2026FinalWalter Gormanprogress
05/12/2025FinalJoakim Aspegrenprogress
05/12/2025Tenant Protection Plan ComplianceJONAR MADRIAGAspecial
05/12/2025Structural Stability – Alterations of existing buildingsHung Pui Hospecial
03/13/2025Structural Stability – Alterations of existing buildingsHung Pui Hospecial
03/13/2025FinalJoakim Aspegrenprogress
03/13/2025Tenant Protection Plan ComplianceJONAR MADRIAGAspecial
▾Tenants in the building
TenantSpaceFloorsRenovation projects
Columbia University Facilities & OperationsEducationCellar
Project M01407460 Alteration · Permit Entire · 06/01/2026
Names are taken automatically from the text of each project’s filed documents (title blocks and cover sheets) and screened to exclude owners, landlords and designers. They may be incomplete or wrong; check the filing.
▾Documents — 343 on file (BIS + DOB NOW)
▸Plans & Drawings10
▸DOB NOWPlans/Sketch10
09/02/2026M00674470-I1Request digital key ↗
09/02/2026M00674470-P1Request digital key ↗
08/31/2026M00848822-I1Request digital key ↗
Showing 3 of 10 on file for this type
▸Applications & Permits82
▸BISWORK PERMIT APPLICATION50
06/14/2019123871998Open ↗
06/14/2019123871998Open ↗
05/16/2019123871998Open ↗
Showing 3 of 50 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION32
07/09/2019123871998Open ↗
07/08/2019123871998Open ↗
05/03/2019123871998Open ↗
Showing 3 of 32 on file for this type
▸Seals & Professional Certifications72
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION40
05/03/2019123871998Open ↗
05/03/2019123871998Open ↗
10/09/2018123256083Open ↗
Showing 3 of 40 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST7
05/03/2019123871998Open ↗
09/08/2014122112258Open ↗
09/06/2014122118305Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature7
09/01/2026M00848822-P1Open ↗
09/01/2026M00848822-P1Open ↗
08/26/2026M01407460-S1Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature7
09/02/2026M00674470-I1Open ↗
09/02/2026M00674470-P1Open ↗
08/31/2026M00848822-I1Open ↗
Showing 3 of 7 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT4
05/03/2019123871998Open ↗
09/08/2014122112258Open ↗
09/06/2014122118305Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/01/2026M00848822-P1Open ↗
08/26/2026M01407460-S1Open ↗
08/23/2026M01407460-I1Open ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM3
12/13/2012121456986Open ↗
10/20/2010120497649Open ↗
05/06/2010120333781Open ↗
▸Trade Schedules & Equipment26
▸BISSCHEDULE B - PLUMBING11
09/30/2013121791169Open ↗
05/14/2013121608484Open ↗
11/17/2010120530568Open ↗
Showing 3 of 11 on file for this type
▸BISSELF-CERT PLUMBING NOTICE7
12/09/2014121791169Open ↗
12/31/2012120530568Open ↗
Showing 2 of 7 on file for this type
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE6
05/03/2019123871998Open ↗
05/18/2018123256083Open ↗
12/14/2017123256083Open ↗
Showing 3 of 6 on file for this type
▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT1
09/30/2013121791169Open ↗
▸BISBOILERS - SUPPORTING DOCUMENTATION1
12/09/2014121791169Open ↗
▸Safety & Tenant Protection4
▸BISSTREET TREE CHECKLIST2
09/03/2014122078660Open ↗
10/20/2010120497649Open ↗
▸BISTenant Protection Plan and Notes2
05/03/2019123871998Open ↗
12/14/2017123256083Open ↗
▸Environmental & Asbestos31
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'15
11/17/2010120530568Open ↗
10/20/2010120497649Open ↗
Showing 2 of 15 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)9
12/14/2017123256083Open ↗
01/21/2016122627434Open ↗
07/16/2015122078660Open ↗
Showing 3 of 9 on file for this type
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/31/2026M00848822-I1Open ↗
08/16/2026M01407460-S1Open ↗
08/16/2026M01407460-I1Open ↗
Showing 3 of 4 on file for this type
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER2
05/06/2010120333781Open ↗
Showing 1 of 2 on file for this type
▸BISDEP ASBESTOS PROJECT COMPLETION FORM1
05/03/2019123871998Open ↗
▸Energy Compliance16
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS12
05/03/2019123871998Open ↗
05/03/2019123871998Open ↗
10/09/2018123256083Open ↗
Showing 3 of 12 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS3
10/09/2018123256083Open ↗
03/15/2017121791169Open ↗
02/11/2015122112258Open ↗
▸BISTR8: Energy Code Progress Inspections1
09/30/2013121791169Open ↗
▸Approvals, Objections & Sign-offs33
▸BISADMINISTRATIVE OBJECTIONS15
05/14/2013121608484Open ↗
12/13/2012121456986Open ↗
11/17/2010120530568Open ↗
Showing 3 of 15 on file for this type
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST10
10/09/2018123256083Open ↗
03/15/2017121791169Open ↗
04/15/2015122118305Open ↗
Showing 3 of 10 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION3
05/09/2018123256083Open ↗
03/15/2017121791169Open ↗
03/15/2017121791169Open ↗
▸BISSCHEDULE A - OCCUPANCY / USE2
02/05/2015122078660Open ↗
09/03/2014122078660Open ↗
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter2
08/28/2026M00986324-P1Open ↗
08/28/2026M00986324-I1Open ↗
▸BISLETTERS - APPROVED FABRICATION CERTIFICATIONS1
04/15/2015122118305Open ↗
▸Cost, Insurance & Ownership40
▸BISCOST AFFIDAVIT33
05/03/2019123871998Open ↗
10/09/2018123256083Open ↗
12/14/2017123256083Open ↗
Showing 3 of 33 on file for this type
▸BISHIC LICENSE OR AFFIDAVIT4
05/06/2019123871998Open ↗
01/27/2016122627434Open ↗
07/14/2015122078660Open ↗
Showing 3 of 4 on file for this type
▸BISWELDERS AFFIDAVIT3
12/09/2014121791169Open ↗
12/09/2014121791169Open ↗
12/09/2014121791169Open ↗
▸Filing & Intake Forms22
▸BISEFILING COVER SHEET12
05/03/2019123871998Open ↗
12/14/2017123256083Open ↗
01/21/2016122627434Open ↗
Showing 3 of 12 on file for this type
▸BISADDITIONAL INFORMATION6
07/09/2019123871998Open ↗
05/23/2018123256083Open ↗
04/09/2018123256083Open ↗
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▸BISBOROUGH INTAKE FORM4
07/08/2019123871998Open ↗
05/16/2019123871998Open ↗
10/09/2018123256083Open ↗
Showing 3 of 4 on file for this type
▸Other Documents7
▸DOB NOWCalculations3
08/13/2026M01206089-I1Open ↗
08/13/2026M00986324-P1Open ↗
08/13/2026M00986324-I1Open ↗
▸DOB NOWManufacturer's Specifications3
08/13/2026M00986324-P1Open ↗
08/13/2026M00986324-I1Open ↗
08/13/2026M01206089-I1Open ↗
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type