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Walk-up cooperative
431 WEST 121ST STREET
MANHATTAN · Morningside Heights · BIN 1059522
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1920Year Built
6Stories
C6Building Class
R8Zoning
17,034 sfGross Floor Area
27Units
Rent Stabilized37 Active Violations 36 unresolved · 1 paperwork only ▸FISP: SWARMP
Walk-up cooperative · Owner of record: 431 W 121 St Housing Development · 3,618 sf lot · 4.71 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
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
RoofMetal cladding repairs1p · 1 filing · 6 docs
PenthouseMetal cladding repairs2p · 1 filing · 6 docs
Floor 6Kitchen and bathroom renovation9p · 1 filing · 20 docs
Floor 5Unit 5B, Unit 5CUnder Construction17p · 2 filings · 20 docs
Floor 4Unit 4C, Unit 4D, Unit 5045p · 3 filings · 16 docs
Floor 3
Floor 2
Floor 1Picky Barista interior exterior renovationUnder Construction10p · 1 filing · 13 docs
Site & exteriorMetal cladding repairs11p · 1 filing · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
Columbia University2703/22/2026
HDFC1503/21/2026
431 W 121st St Housing Develpmn403/22/2026
431 West 121 St HDFC403/21/2026
▾Design Consultants (Architect / Engineer of Record)
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
Aye Consulting Group1203/21/2026
Jenny Flores Expediting203/21/2026
Grand Expediters NYC203/21/2026
CSR Expediters203/21/2026
Big Orange Expediting403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
M&A Projects Restoration*specialty_contractor603/21/2026
Mayanda Home Improvement*General Contractor603/21/2026
Vici InteriorsGeneral Contractor303/21/2026
P.S.I. MechanicalPlumbing207/08/2026
Algol GroupGeneral Contractor204/09/2026
M & A ProjectsGeneral Contractor203/21/2026
Accurate ElectricalElectrical103/21/2026
Vma ElectricalElectrical103/22/2026
Timothy Coleman LicensedElectrical103/22/2026
Robin Electrical CoElectrical103/21/2026
AP Plumbing & HVACPlumbing107/08/2026
Albanorth Construction C*General Contractor104/09/2026
L.L.G. Plumbing & HeatingPlumbing106/28/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
JD Engineering9859102/04/2026
Aaron McDonald Architect5118101/30/2026
Keyowner Engineering4817105/28/2025
Jonathan Sinagub Architects8118601/16/2024
AK Engineering678206/14/2023
Hamann Engineering4949212/20/2022
Dyo Design Office6701101/29/2022
Building Lifecycle
All (158)Filed (15)Permit Issued (13)Signed Off (5)Facade (FISP) (15)Violation (60)Inspection (12)Objection (8)Special Inspection (30)
03/06/2026
Permit issued — General Construction
M01346545-I1-GC
02/20/2026
Permit issued — Plumbing
M01346545-S1-PL
02/19/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
02/19/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
02/10/2026
Permit issued — Plumbing
M01228554-S1-PL
02/04/2026
Filed — Alteration
INTERIOR RENOVATION OF EXISTING FIRST-FLOOR RESTAURANT, INCLUDING NEW EQUIPMENT INSTALLATION, NON-LOAD-BEARING WALLS, LIGHTING UPGRADES, MILLWORK, FINISHES, AND MINOR STOREFRONT CHANGES. NO CHANGE TO THE USE, EGRESS OF OCCUPANCY UNDER THIS APPLICATION.
M01228554-S1
02/01/2026
Special inspection requirement — Energy Code Compliance Inspections
Zhao Deng
02/01/2026
Special inspection requirement — HVAC-R and service water heating system controls
Zhao Deng
02/01/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Zhao Deng
02/01/2026
Special inspection requirement — Tenant Protection Plan Compliance
Zhao Deng
02/01/2026
Special inspection requirement — HVAC-R and service water heating equipment
Zhao Deng
02/01/2026
Special inspection requirement — Maintenance information
Zhao Deng
02/01/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Zhao Deng
01/30/2026
Filed — Alteration
HEREBY FILING FOR RENOVATION OF EXISTING APARTMENT 5C LOCATED ON THE FIFTH FLOOR. NO CHANGE TO, USE OCCUPANCY OR EGRESS.
M01346545-S1
01/30/2026
Filed — Alteration
HEREBY FILING FOR RENOVATION OF EXISTING APARTMENT 5C LOCATED ON THE FIFTH FLOOR. NO CHANGE TO, USE OCCUPANCY OR EGRESS.
M01346545-I1
01/14/2026
Special inspection requirement — Lighting in dwelling units
Aaron McDonald
01/14/2026
Special inspection requirement — Energy Code Compliance Inspections
Aaron McDonald
01/14/2026
Special inspection requirement — Final
Aaron McDonald
01/14/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Aaron McDonald
12/08/2025
Permit issued — General Construction
M01228554-I1-GC
09/18/2025
Permit issued — General Construction
M01228554-I1-GC
05/28/2025
Filed — Alteration
INTERIOR RENOVATION OF EXISTING FIRST-FLOOR RESTAURANT, INCLUDING NEW EQUIPMENT INSTALLATION, NON-LOAD-BEARING WALLS, LIGHTING UPGRADES, MILLWORK, FINISHES, AND MINOR STOREFRONT CHANGES. NO CHANGE TO THE USE, EGRESS OF OCCUPANCY UNDER THIS APPLICATION.
M01228554-I1
05/24/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
KWAMI AVITY
05/24/2025
Special inspection requirement — Energy Code Compliance Inspections
KWAMI AVITY
05/24/2025
Special inspection requirement — Fire-Resistance Rated Construction
KWAMI AVITY
05/24/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
KWAMI AVITY
05/24/2025
Special inspection requirement — Interior lighting power
KWAMI AVITY
05/24/2025
Special inspection requirement — Insulation placement and R values
KWAMI AVITY
05/20/2025
Special inspection requirement — Final
KWAMI AVITY
02/25/2025
Violation issued (HPD, open)
B
02/25/2025
Violation issued (HPD, open)
B
02/25/2025
Violation issued (HPD, open)
B
02/25/2025
Violation issued (HPD, open)
C
02/25/2025
Violation issued (HPD, open)
C
02/25/2025
Violation issued (HPD, open)
B
02/13/2025
Signed off — Alteration
Masonry repair and repointing as well as metal panel removal and reattachment at mechanical bulkhead at roof as plans filed. No change in use egress or occupancy.
M00795557-I1
11/21/2024
Violation issued (HPD, closed)
B
11/21/2024
Violation issued (HPD, closed)
B
09/06/2024
Cycle 9 facade report signed — SWARMP
08/01/2024
Violation issued (ECB, open)
Construction
06/11/2024
Violation issued (ECB, closed)
Construction
06/11/2024
Violation issued (ECB, closed)
Construction
05/25/2024
Violation issued (HPD, closed)
C
05/25/2024
Violation issued (HPD, closed)
C
02/21/2024
Cycle 9 facade report submitted
02/20/2024
Cycle 9 facade report signed — SAFE
02/07/2024
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
02/06/2024
Special inspection requirement — Energy Code Compliance Inspections
JONATHAN SINAGUB
02/06/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
JONATHAN SINAGUB
01/29/2024
Cycle 9 facade inspection completed
01/29/2024
Objection resolved — Addressed
01/25/2024
Objection raised — Scope
01/22/2024
Cycle 9 facade report submitted
01/16/2024
Filed — Alteration
Replacement of kitchen & Bathroom fixtures with new; repairing wall finishes as needed and waterproofing. No partition walls to be removed or added. No change in occupancy, use, or egreess.
M00828642-P4
12/14/2023
Cycle 9 facade inspection completed
12/11/2023
Signed off — Alteration
Replacement of kitchen & Bathroom fixtures with new; repairing wall finishes as needed and waterproofing. No partition walls to be removed or added. No change in occupancy, use, or egreess.
M00828642-I1
11/20/2023
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
11/17/2023
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
11/17/2023
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
10/30/2023
Objection resolved — Addressed
Latest 60 of 158 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedAlbanorth Construction C*03/06/2026
DOB NOWPlumbingPermit IssuedL.L.G. Plumbing & Heating02/20/2026
DOB NOWPlumbingPermit IssuedCrossfield Plumbing & Heating02/10/2026
DOB NOWGeneral ConstructionPermit IssuedAlgol Group12/08/2025
DOB NOWGeneral ConstructionPermit IssuedAlgol Group09/18/2025
DOB NOWGeneral ConstructionSigned-offMayanda Home Improvement*06/14/2023
DOB NOWPlumbingSigned-offP.S.I. Mechanical06/01/2023
DOB NOWGeneral ConstructionSigned-offM&A Projects Restoration*03/01/2023
DOB NOWPlumbingSigned-offP.S.I. Mechanical02/14/2023
DOB NOWGeneral ConstructionSigned-offM & A Projects02/09/2023
DOB NOWGeneral ConstructionSigned-offMayanda Home Improvement*02/01/2023
DOB NOWGeneral ConstructionSigned-offM&A Projects Restoration*01/19/2023
DOB NOWGeneral ConstructionSigned-offVici Interiors03/23/2022
BISPLISSUEDLegacy Plumbing & Heating12/01/2016
BISPLISSUEDEna Plumbing11/10/2016
BISOTISSUEDJ. Christopher Interiors11/04/2016
BISOTISSUEDJ. Christopher Interiors07/19/2016
BISOTISSUEDL & Z Restoration03/09/2016
BISPLISSUEDAqua Plumbing & Heating02/16/2016
BISOTISSUEDMC Fleming Group07/17/2015
BISOTISSUEDAccura Restoration06/30/2014
BISEQISSUEDAccura Restoration05/12/2014
BISOTISSUEDAccura Restoration05/07/2014
BISEQISSUEDSpring Scaffolding04/01/2014
BISFPISSUEDMaster Fire Systems07/15/2013
BISEQISSUEDConstruction Expert06/18/2013
BISMHISSUEDConstruction Expert06/18/2013
BISPLISSUEDOrion Plumbing & Heating10/08/2012
BISMHISSUEDConstruction Expert10/08/2012
BISOTISSUEDConstruction Expert09/27/2012
BISEQISSUEDConstruction Expert09/18/2012
BISFPISSUEDNY Fire09/01/2010
BISEQISSUEDOutdoor Installations LLX06/11/2007
BISOTISSUEDAwal Contracting Co05/31/2007
BISOTISSUEDCHM Contracting12/12/2005
BISPLISSUEDBaysid Mechanicak10/12/2005
BISPLISSUEDCK Plumbing & Mechanical10/05/2005
BISOTISSUEDMamais Contracting04/27/2005
BISEQRE-ISSUEDUniversal Builders Supply09/23/2003
BIS—ISSUEDLendlease (US) Construction07/02/2003
+ 23 more permits on file
2 projects · most recent 01/30/2026
Water/Sanitary Gas
FiledStatusContractorScope
01/30/2026Permit IssuedL.L.G. Plumbing & HeatingWater/Sanitary
01/16/2024Signed-offP.S.I. MechanicalGas, Water/Sanitary
9 projects · most recent 04/27/2026
General Wiring
FiledStatusContractorScope
04/27/2026Permit IssuedAccurate Electrical27 meters, 1 new_meters
02/04/2026Permit IssuedRobin Electrical CoGeneral Wiring
09/18/2025Permit IssuedAccurate ElectricalGeneral Wiring
08/18/2024Permit IssuedVma ElectricalGeneral Wiring
12/11/2023CompleteVma ElectricalGeneral Wiring
03/10/2023CompleteVma ElectricalGeneral Wiring
02/10/2023Permit IssuedTimothy Coleman LicensedGeneral Wiring
07/25/2022CompleteJoe ElectricalGeneral Wiring
07/25/2019CompleteKJK ElectricGeneral Wiring
1 project · most recent 01/16/2024
FiledStatusContractorScope
01/16/2024Signed-offMayanda Home Improvement*1 scope_items
▾Field Inspections (DOB CAP) — 12
DateTypeResultReport
02/19/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
02/19/2026Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
02/07/2024Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/20/2023Pass-Final PL - Up to 3 Requested FloorsPassView ↗
11/17/2023Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
11/17/2023Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
09/14/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
08/31/2023Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
08/29/2023Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
08/29/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
07/24/2023Pass-Final PL - Up to 3 Requested FloorsPassView ↗
04/05/2023Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 34
DateRequirementInspectorRole
02/01/2026Energy Code Compliance InspectionsZhao Dengprogress
02/01/2026HVAC-R and service water heating system controlsZhao Dengenergy_progress
02/01/2026Fire-Resistant Penetrations and JointsZhao Dengspecial
02/01/2026Tenant Protection Plan ComplianceZhao Dengspecial
02/01/2026HVAC-R and service water heating equipmentZhao Dengenergy_progress
02/01/2026Maintenance informationZhao Dengenergy_progress
02/01/2026HVAC-R and service water piping design and insulationZhao Dengenergy_progress
01/14/2026Lighting in dwelling unitsAaron McDonaldenergy_progress
01/14/2026Energy Code Compliance InspectionsAaron McDonaldprogress
01/14/2026FinalAaron McDonaldprogress
01/14/2026Fire-Resistant Penetrations and JointsAaron McDonaldspecial
05/24/2025Fire-Resistant Penetrations and JointsKWAMI AVITYspecial
05/24/2025Energy Code Compliance InspectionsKWAMI AVITYprogress
05/24/2025Fire-Resistance Rated ConstructionKWAMI AVITYprogress
05/24/2025Fenestration and door U-factor and product ratingsKWAMI AVITYenergy_progress
05/24/2025Interior lighting powerKWAMI AVITYenergy_progress
05/24/2025Insulation placement and R valuesKWAMI AVITYenergy_progress
05/20/2025FinalKWAMI AVITYprogress
02/06/2024Energy Code Compliance InspectionsJONATHAN SINAGUBprogress
02/06/2024Fire-Resistant Penetrations and JointsJONATHAN SINAGUBspecial
10/18/2023Energy Code Compliance InspectionsJONATHAN SINAGUBprogress
10/18/2023Fire-Resistant Penetrations and JointsJONATHAN SINAGUBspecial
08/24/2023Fire-Resistant Penetrations and JointsJONATHAN SINAGUBspecial
08/24/2023FinalJONATHAN SINAGUBprogress
08/24/2023Energy Code Compliance InspectionsJONATHAN SINAGUBprogress
Latest 25 of 34.
▾Documents — 196 on file (BIS + DOB NOW)
▸Plans & Drawings15
▸DOB NOWPlans/Sketch15
09/02/2026M00671295-I1Request digital key ↗
09/01/2026M00786772-I1Request digital key ↗
08/31/2026M00828642-S1Request digital key ↗
Showing 3 of 15 on file for this type
▸Applications & Permits29
▸BISWORK PERMIT APPLICATION19
12/15/2016122771508Open ↗
11/16/2016122771508Open ↗
11/14/2016122771508Open ↗
Showing 3 of 19 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION10
05/24/2016122771508Open ↗
03/08/2016121799492Open ↗
07/16/2015122462049Open ↗
Showing 3 of 10 on file for this type
▸Seals & Professional Certifications73
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION20
01/07/2019103222629Open ↗
03/20/2018122771508Open ↗
05/18/2017121799492Open ↗
Showing 3 of 20 on file for this type
▸DOB NOWProgress Inspector Seal & Signature17
09/01/2026M01228554-I1Open ↗
09/01/2026M01228554-I1Open ↗
08/28/2026M00828642-I1Open ↗
Showing 3 of 17 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature15
09/02/2026M00671295-I1Open ↗
09/01/2026M00786772-I1Open ↗
08/31/2026M00828642-P3Open ↗
Showing 3 of 15 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature9
09/01/2026M01228554-I1Open ↗
08/28/2026M00828642-I1Open ↗
08/28/2026M00828642-S1Open ↗
Showing 3 of 9 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST3
07/16/2015122462049Open ↗
07/09/2013121700392Open ↗
08/06/2012121174166Open ↗
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2
05/12/2014140196918Open ↗
03/28/2014140179081Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT2
05/12/2014140196918Open ↗
03/28/2014140179081Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2
05/12/2014140196918Open ↗
03/28/2014140179081Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM2
07/09/2013121700392Open ↗
08/06/2012121174166Open ↗
▸BISProfessional and Owner Certification (POC3)1
07/16/2015122462049Open ↗
▸Trade Schedules & Equipment2
▸BISSCHEDULE B - PLUMBING1
08/06/2012121174166Open ↗
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
07/16/2015122462049Open ↗
▸Environmental & Asbestos18
▸DOB NOWDEP ACP-5: Asbestos Assessment Report13
09/02/2026M00671295-I1Open ↗
09/01/2026M00786772-I1Open ↗
08/31/2026M00828642-S1Open ↗
Showing 3 of 13 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)2
07/16/2015122462049Open ↗
05/12/2014140196918Open ↗
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'2
09/14/2010120468243Open ↗
08/26/2010120436625Open ↗
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
05/18/2017121799492Open ↗
▸Energy Compliance13
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS6
03/20/2018122771508Open ↗
06/16/2016122462049Open ↗
07/22/2015122462049Open ↗
Showing 3 of 6 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS3
03/20/2018122771508Open ↗
05/18/2017121799492Open ↗
06/16/2016122462049Open ↗
▸BISELECTRICAL APPLICATION FOR SIDEWALK SHED LIGHTING1
03/28/2014140179081Open ↗
▸BISTR8: Energy Code Progress Inspections1
05/09/2014121799492Open ↗
▸BISENERGY CODE 1ST REVIEW COMPLETE1
05/18/2017121799492Open ↗
▸DOB NOWEN2: As Built Energy Analysis1
09/02/2026M00671295-I1Open ↗
▸Inspections & Test Reports1
▸BISTECHNICAL REPORT: RESPONSIBILITY1
05/12/2014140196918Open ↗
▸Approvals, Objections & Sign-offs16
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST8
01/07/2019103222629Open ↗
12/28/2018103222656Open ↗
12/28/2018103222647Open ↗
Showing 3 of 8 on file for this type
▸BISADMINISTRATIVE OBJECTIONS4
07/09/2013121700392Open ↗
08/06/2012121174166Open ↗
09/14/2010120468243Open ↗
Showing 3 of 4 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION2
12/15/2016122771508Open ↗
01/31/2011120468243Open ↗
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter2
08/13/2026M00795557-P1Open ↗
08/13/2026M00795557-I1Open ↗
▸Cost, Insurance & Ownership10
▸BISCOST AFFIDAVIT10
03/20/2018122771508Open ↗
05/18/2017121799492Open ↗
06/16/2016122462049Open ↗
Showing 3 of 10 on file for this type
▸Filing & Intake Forms15
▸BISEFILING COVER SHEET6
07/16/2015122462049Open ↗
10/25/2013121799492Open ↗
07/09/2013121700392Open ↗
Showing 3 of 6 on file for this type
▸BISBOROUGH INTAKE FORM4
01/07/2019103222629Open ↗
12/28/2018103222656Open ↗
12/28/2018103222647Open ↗
Showing 3 of 4 on file for this type
▸BISADDITIONAL INFORMATION3
10/14/2016121799492Open ↗
03/23/2016121799492Open ↗
06/25/2014140179081Open ↗
▸BISEFILING JOB APPLICATION COVER SHEET2
05/12/2014140196918Open ↗
03/28/2014140179081Open ↗
▸Other Documents4
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION4
05/12/2014140196918Open ↗
05/09/2014121799492Open ↗
03/28/2014140179081Open ↗
Showing 3 of 4 on file for this type