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Office with commercial, 7-19 stories
National Museum of Mathematics
134 WEST 26TH STREET · BIN 1015025
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1911Year Built
12Stories
O6Building Class
M1-8A/R11Zoning
95,069 sfGross Floor Area
26Units
LL97 Covered5 Active Violations 3 unresolved · 2 paperwork only 5 old, status unconfirmed ▸FISP: SAFE
Office with commercial, 7-19 stories · Owner of record: 134 40 W 26 St Ownrs · 8,023 sf lot · 11.85 FAR built · Flood zone X
Locations of Work
ArchitectureElectricalMechanicalPlumbingFire ProtectionEquipmentGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Roof134 West 26 ST. Owners CORP.6p · 1 filing · 16 docs
Floor 10134 West 26 ST. Owners CORP.23p · 1 filing · 20 docs
Floor 9
Floor 8
Floor 7Unit 750, Unit 7702 filings · 13 docs
Floor 6
Floor 5
Floor 4
Floor 3
Floor 2Physical Therapy & Feldenkrais3p · 1 filing · 4 docs
Floor 1
Cellar134 West 26 ST. Owners CORP.7p · 1 filing · 16 docs
Basement134 West 26 ST. Owners CORP.1p · 1 filing · 5 docs
Site & exterior134 West 26th Street Owners Corp.15p · 3 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
134 West 26 St Owners7807/08/2026
Dezer Properties203/21/2026
Friedman Engineering103/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
B2B Associates401/22/2026
Garcia-Quismondo, Luismiguel RA105/29/2025
Bazini Engineering311/12/2024
KZ Engineering211/08/2022
Cornerstone110/27/2022
Karacoban Engineering208/22/2022
Abeja Engineering108/05/2022
Marcelo Barujel Architect103/10/2022
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BMB Building Consulting1003/21/2026
Synergy Building Consultants203/21/2026
Northeast Expediting203/21/2026
Commercial Capital USA403/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Ceprine ConstructionScaffold603/21/2026
Bayside ContractingGeneral Contractor607/08/2026
All American Heatingspecialty_contractor403/21/2026
W.J. Regan & CompanyGeneral Contractor303/21/2026
Jen Electrical ContractorsElectrical303/21/2026
Empire Core GroupGeneral Contractor203/21/2026
Empire EcsGeneral Contractor207/08/2026
Able Electrical Service & MNTElectrical103/21/2026
O'Kane JohnElectrical103/21/2026
WaterfirePlumbing107/08/2026
Istra Electrical ContractorsElectrical103/21/2026
Hugh O'Kane Electric CoElectrical103/21/2026
A & E PlumbingPlumbing107/08/2026
New Era Mechanical ServiceFire Protection106/28/2026
S & J IndustrialFire Protection106/27/2026
Alliance Elevator CompanyElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
B2 Engineering5433501/22/2026
Bazini Engineering1808311/12/2024
Leo Y Lee Associates2481110/27/2022
Abeja Engineering7269308/22/2022
Building Lifecycle
All (146)Filed (15)Permit Issued (17)Signed Off (9)Facade (FISP) (12)Violation (60)Inspection (3)Special Inspection (30)
07/17/2026
Signed off — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S2
06/05/2026
Signed off — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S1
05/07/2026
Permit issued — Sprinklers
M01214970-S2-EW-SP
05/05/2026
Permit issued — Plumbing
M01214970-S1-PL
04/23/2026
Signed off — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-I1
04/23/2026
Signed off — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S3
03/06/2026
Inspection — Certified Water and Sanitary-WS-Fixtures-Finish
Certified
View inspection ↗
01/22/2026
Filed — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-P1
01/16/2026
Special inspection requirement — Sprinkler Systems
Brian Bercarich
01/16/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Brian Bercarich
10/06/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
10/03/2025
Permit issued — Sprinklers
M01214970-S2-EW-SP
08/28/2025
Permit issued — Plumbing
M01214970-S1-PL
07/15/2025
Permit issued — General Construction
M01214970-I1-GC
07/15/2025
Permit issued — Mechanical Systems
M01214970-S3-MS
05/29/2025
Filed — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S2
05/29/2025
Filed — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S1
05/29/2025
Filed — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-I1
05/29/2025
Filed — Alteration
MODIFICATION OF EXISTING SPRINKLER SYSTEM. INSTALL NEW HEADS. NO CHANGE TO USE, EGRESS, OR OCCUPANCY.
M01214970-S3
05/22/2025
Special inspection requirement — HVAC-R and service water heating system controls
Brian Bercarich
05/22/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
Brian Bercarich
05/22/2025
Special inspection requirement — HVAC-R and service water heating equipment
Brian Bercarich
05/14/2025
Special inspection requirement — Duct leakage testing, insulation and design
Brian Bercarich
05/14/2025
Special inspection requirement — Final
Brian Bercarich
05/14/2025
Special inspection requirement — Energy Code Compliance Inspections
Brian Bercarich
05/14/2025
Special inspection requirement — Fire-Resistance Rated Construction
Brian Bercarich
05/14/2025
Special inspection requirement — Mechanical Systems
Brian Bercarich
05/14/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Brian Bercarich
12/20/2024
Signed off — Alteration
INSTALL NEW CHIMNEY LINER WITHIN EXISTING MASONRY CHIMNEY. INSTALL NEW CONTAINMENT WALL FOR FUEL STORAGE TANKS IN CELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01033541-I1
11/27/2024
Signed off — Alteration
INSTALL NEW CHIMNEY LINER WITHIN EXISTING MASONRY CHIMNEY. INSTALL NEW CONTAINMENT WALL FOR FUEL STORAGE TANKS IN CELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01033541-S1
11/14/2024
Special inspection requirement — Chimneys and vents
Joseph Bazini
11/14/2024
Special inspection requirement — Final
Joseph Bazini
11/14/2024
Special inspection requirement — Mechanical Systems
Joseph Bazini
11/12/2024
Filed — Alteration
INSTALL NEW CHIMNEY LINER WITHIN EXISTING MASONRY CHIMNEY. INSTALL NEW CONTAINMENT WALL FOR FUEL STORAGE TANKS IN CELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01033541-P1
10/31/2024
Special inspection requirement — Chimneys and vents
Joseph Bazini
10/31/2024
Special inspection requirement — Mechanical Systems
Joseph Bazini
10/31/2024
Special inspection requirement — Final
Joseph Bazini
10/03/2024
Inspection — Pass-Final Boiler Equipment Inspection
Pass
View inspection ↗
07/23/2024
Signed off — Alteration
Installation of temporary heavy duty sidewalk shed per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.
M08007852-I1
07/17/2024
Cycle 9 facade report signed — SAFE
07/10/2024
Signed off — Alteration
M00788407-I1
06/26/2024
Permit issued — General Construction
M00788407-I1-GC
06/23/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
05/07/2024
Permit issued — General Construction
M01033541-S1-GC
05/07/2024
Permit issued — Mechanical Systems
M01033541-S1-MS
05/06/2024
Filed — Alteration
INSTALL NEW CHIMNEY LINER WITHIN EXISTING MASONRY CHIMNEY. INSTALL NEW CONTAINMENT WALL FOR FUEL STORAGE TANKS IN CELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01033541-I1
05/06/2024
Filed — Alteration
INSTALL NEW CHIMNEY LINER WITHIN EXISTING MASONRY CHIMNEY. INSTALL NEW CONTAINMENT WALL FOR FUEL STORAGE TANKS IN CELLAR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01033541-S1
05/06/2024
Permit issued — Boiler Equipment
M01033541-I1-BE
05/06/2024
Special inspection requirement — HVAC-R and service water heating equipment
Joseph Bazini
04/10/2024
Special inspection requirement — Fuel-Oil Storage and Fuel-Oil Piping Systems
Joseph Bazini
02/21/2024
Cycle 9 facade report submitted
01/29/2024
Cycle 9 facade inspection completed
11/21/2023
Permit issued — General Construction
M00788407-I1-GC
09/25/2023
Permit issued — Sidewalk Shed
M08007852-I1-SH
05/06/2023
Violation issued (ECB, open)
Cranes and Derricks
04/22/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
11/23/2022
Permit issued — General Construction
M00788407-I1-GC
11/08/2022
Filed — Alteration
Installation of temporary heavy duty sidewalk shed per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.
M08007852-P1
11/01/2022
Permit issued — General Construction
M00788407-I1-GC
10/27/2022
Filed — Alteration
M00788407-I1
Latest 60 of 146 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersSigned-offS & J Industrial05/07/2026
DOB NOWPlumbingSigned-offWaterfire05/05/2026
DOB NOWSprinklersSigned-offNew Era Mechanical Service10/03/2025
DOB NOWPlumbingSigned-offA & E Plumbing08/28/2025
DOB NOWGeneral ConstructionSigned-offEmpire Ecs07/15/2025
DOB NOWMechanical SystemsSigned-offEmpire Ecs07/15/2025
DOB NOWGeneral ConstructionSigned-offBayside Contracting06/26/2024
DOB NOWGeneral ConstructionSigned-offJ & G Construction Services05/07/2024
DOB NOWMechanical SystemsSigned-offAll American Heating05/07/2024
DOB NOWBoiler EquipmentSigned-offAll American Heating05/06/2024
DOB NOWGeneral ConstructionSigned-offBayside Contracting11/21/2023
DOB NOWSidewalk ShedSigned-offCeprine Construction09/25/2023
DOB NOWGeneral ConstructionSigned-offBayside Contracting11/23/2022
DOB NOWGeneral ConstructionSigned-offBayside Contracting11/01/2022
DOB NOWSidewalk ShedSigned-offCeprine Construction09/29/2022
DOB NOWGeneral ConstructionPermit IssuedEmpire Core Group08/10/2022
DOB NOWGeneral ConstructionSigned-offW.J. Regan & Company06/13/2022
BISPLISSUEDWTC Plumbing & Heating02/04/2015
BISOTISSUEDEurostruct11/18/2014
BISMHISSUEDEurostruct11/18/2014
BISOTISSUEDAcme Awning Co04/28/2010
BISOTISSUEDGalicia Contracting & Restoration04/20/2006
BISPLISSUEDM & A Plumbing & Heating02/02/2006
BISSPISSUEDM & Aplbg & Heating12/23/2005
BISPLISSUEDM & Aplbg & Heating12/23/2005
BISOTISSUEDVincent Cascone12/23/2005
BISMHISSUEDVincent Cascone07/19/2005
BISOTISSUEDVincent Cascone07/19/2005
BISEQISSUEDSpring Scaffolding04/01/2003
BISEQRE-ISSUEDSpring Scaffolding06/20/2002
BISEQISSUEDRockledge Scaffold11/19/1999
BISSPISSUEDQueens Maintenance Co07/14/1999
BISOTISSUEDBoyard Contracting07/08/1999
BISPLISSUEDJohn Trani Plumbing and Heating07/01/1999
BISEQISSUEDTaocon06/04/1999
BISOTISSUEDTaocon06/04/1999
BISOTISSUEDGolden Vale Construction08/22/1996
BISEQISSUEDGraystone Construction12/13/1995
BISOTISSUEDGraystone Construction12/13/1995
BISOTISSUEDS.hoffman Plumbing Co10/30/1995
+ 3 more permits on file
1 project · most recent 01/22/2026
Heating and Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
01/22/2026Signed-offEmpire EcsHeating and Air Conditioning Systems
Heat / Cool
Mitsubishi Electric MXZ-SM72TAM-U1 76,000 BTU · Condensing Unit ×1
2 projects · most recent 01/22/2026
Sprinkler System
FiledStatusContractorScope
01/22/2026Signed-offS & J IndustrialSprinkler System
08/22/2022———
1 project · most recent 01/22/2026
Water/Sanitary
FiledStatusContractorScope
01/22/2026Signed-offWaterfireWater/Sanitary
2 projects · most recent 09/30/2022
General Wiring
FiledStatusContractorScope
09/30/2022CompleteBorowide Elect'l Contractors—
06/24/2022CompleteBass ElectricalGeneral Wiring
▾Field Inspections (DOB CAP) — 3
DateTypeResultReport
03/06/2026Certified Water and Sanitary-WS-Fixtures-FinishCertifiedView ↗
10/06/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
10/03/2024Pass-Final Boiler Equipment InspectionPassView ↗
▾Special Inspection Requirements (DOB NOW) — 30
DateRequirementInspectorRole
01/16/2026Sprinkler SystemsBrian Bercarichspecial
01/16/2026Fire-Resistant Penetrations and JointsBrian Bercarichspecial
05/22/2025HVAC-R and service water heating system controlsBrian Bercarichenergy_progress
05/22/2025HVAC-R and service water piping design and insulationBrian Bercarichenergy_progress
05/22/2025HVAC-R and service water heating equipmentBrian Bercarichenergy_progress
05/14/2025Duct leakage testing, insulation and designBrian Bercarichenergy_progress
05/14/2025FinalBrian Bercarichprogress
05/14/2025Energy Code Compliance InspectionsBrian Bercarichprogress
05/14/2025Fire-Resistance Rated ConstructionBrian Bercarichprogress
05/14/2025Mechanical SystemsBrian Bercarichspecial
05/14/2025Fire-Resistant Penetrations and JointsBrian Bercarichspecial
11/14/2024Chimneys and ventsJoseph Bazinispecial
11/14/2024FinalJoseph Baziniprogress
11/14/2024Mechanical SystemsJoseph Bazinispecial
10/31/2024Chimneys and ventsJoseph Bazinispecial
10/31/2024Mechanical SystemsJoseph Bazinispecial
10/31/2024FinalJoseph Baziniprogress
05/06/2024HVAC-R and service water heating equipmentJoseph Bazinienergy_progress
04/10/2024Fuel-Oil Storage and Fuel-Oil Piping SystemsJoseph Bazinispecial
10/24/2022MasonryLeo Leespecial
10/24/2022Energy Code Compliance InspectionsMark Ellisprogress
08/22/2022Sprinkler SystemsJOHANN VELEZspecial
08/22/2022Fire-Resistant Penetrations and JointsJOHANN VELEZspecial
08/18/2022Sprinkler SystemsJOHANN VELEZspecial
08/18/2022Fire-Resistant Penetrations and JointsJOHANN VELEZspecial
Latest 25 of 30.
▾Tenants in the building
TenantSpaceFloorsRenovation projects
Physical Therapy & FeldenkraisMedical / HealthcareFloor 2
Project M00690520 Alteration · LOC Issued · 03/10/2022
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 — 111 on file (BIS + DOB NOW)
▸Plans & Drawings15
▸DOB NOWPlans/Sketch15
09/02/2026M00690520-I1Request digital key ↗
09/02/2026M00781206-I1Request digital key ↗
09/02/2026M00781209-P1Request digital key ↗
Showing 3 of 15 on file for this type
▸Applications & Permits7
▸BISPLAN / WORK APPROVAL APPLICATION4
08/07/2015122128250Open ↗
09/15/2014122128250Open ↗
09/15/2014122128250Open ↗
Showing 3 of 4 on file for this type
▸BISWORK PERMIT APPLICATION3
02/09/2015122128250Open ↗
11/20/2014122128250Open ↗
11/20/2014122128250Open ↗
▸Seals & Professional Certifications46
▸DOB NOWDPL-1: Design Professional Seal & Signature15
09/02/2026M00690520-I1Open ↗
09/02/2026M00781209-P1Open ↗
09/02/2026M00781209-I1Open ↗
Showing 3 of 15 on file for this type
▸DOB NOWProgress Inspector Seal & Signature13
09/23/2026M01033541-I1Open ↗
08/31/2026M01033541-S1Open ↗
08/30/2026M01033541-P1Open ↗
Showing 3 of 13 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature11
09/23/2026M01033541-I1Open ↗
08/31/2026M01214970-P1Open ↗
08/31/2026M01214970-P1Open ↗
Showing 3 of 11 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION7
11/17/2015122128250Open ↗
11/17/2015122128250Open ↗
12/17/2014122128250Open ↗
Showing 3 of 7 on file for this type
▸Trade Schedules & Equipment7
▸BISEQUIPMENT USE PERMITS2
11/17/2015122128250Open ↗
10/30/2015122128250Open ↗
▸BISSELF-CERT PLUMBING NOTICE2
04/29/2015122128250Open ↗
03/03/2015122128250Open ↗
▸BISEQUIPMENT USE APPLICATION/PERMIT2
11/17/2015122128250Open ↗
10/30/2015122128250Open ↗
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
09/15/2014122128250Open ↗
▸Environmental & Asbestos16
▸DOB NOWDEP ACP-5: Asbestos Assessment Report13
09/02/2026M00690520-I1Open ↗
09/02/2026M00781209-I1Open ↗
09/02/2026M00781209-P1Open ↗
Showing 3 of 13 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)1
09/15/2014122128250Open ↗
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER1
01/22/2010120250851Open ↗
▸BISASBESTOS-EXEMTTION (ASB4)1
01/22/2010120250851Open ↗
▸Energy Compliance9
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS6
11/17/2015122128250Open ↗
11/17/2015122128250Open ↗
12/17/2014122128250Open ↗
Showing 3 of 6 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS1
11/17/2015122128250Open ↗
▸DOB NOWEN2: As Built Energy Analysis1
08/13/2026M00690520-I1Open ↗
▸DOB NOWPreliminary Commissioning Report Certification1
08/13/2026M01033541-I1Open ↗
▸Approvals, Objections & Sign-offs2
▸BISADMINISTRATIVE OBJECTIONS1
01/22/2010120250851Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
11/17/2015122128250Open ↗
▸Cost, Insurance & Ownership4
▸BISCOST AFFIDAVIT4
11/17/2015122128250Open ↗
09/15/2014122128250Open ↗
09/15/2014122128250Open ↗
Showing 3 of 4 on file for this type
▸Filing & Intake Forms4
▸BISEFILING COVER SHEET3
09/15/2014122128250Open ↗
09/15/2014122128250Open ↗
01/22/2010120250851Open ↗
▸BISADDITIONAL INFORMATION1
09/03/2015122128250Open ↗
▸Other Documents1
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1
05/06/2010120250851Open ↗