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Over six families without stores
436 WEST 20TH STREET
MANHATTAN · BIN 1012595
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1835Year Built
5Stories
C1Building Class
R7BZoning
5,247 sfGross Floor Area
7Units
Rent Stabilized1 Active Violation 0 unresolved · 1 paperwork only ▸
Over six families without stores · Owner of record: Chelsea Square · 2,574 sf lot · 2.04 FAR built · Flood zone X500
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingFire ProtectionEquipmentGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Roof13p · 1 filing · 20 docs
Attic13p · 1 filing · 20 docs
Floor 413p · 1 filing · 20 docs
Floor 313p · 1 filing · 20 docs
Floor 213p · 1 filing · 20 docs
Floor 1Installation of heavy duty sidewalk shed13p · 3 filings · 20 docs
Cellar13p · 1 filing · 20 docs
Basement13p · 1 filing · 20 docs
Sub-Basement5p · 1 filing · 20 docs
Site & exteriorTemporary pipe scaffold installation5p · 1 filing · 2 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
436 West 20 Street1203/21/2026
436 W 20 St303/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
Sharon Associates801/27/2026
Melamed Architect209/11/2024
BHK Engineering110/27/2023
Mje Professional Services306/09/2023
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BMB Building Consulting2203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Empire City ConstructionScaffold1307/08/2026
JJS ManagementGeneral Contractor907/08/2026
Kwong Ming ElectricElectrical303/21/2026
Empire PlumbingPlumbing207/08/2026
5 J'S Electl ContsElectrical103/22/2026
Verrazano Plumbing ContPlumbing107/08/2026
AE ElectricElectrical103/21/2026
BT's Plumbing and HeatingPlumbing107/08/2026
Expert Fire SprinklerFire Protection107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Steel Core Engineering PL10981001/27/2026
BHK Engineering9589110/27/2023
Building Lifecycle
All (174)Filed (14)Permit Issued (19)Signed Off (5)Violation (60)Inspection (7)Objection (42)Special Inspection (27)
10/08/2026
Inspection — Pass-Final PL - Up to 9 Requested Floors
Pass
View inspection ↗
06/18/2026
Signed off — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-S1
06/17/2026
Signed off — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-S4
05/18/2026
Permit issued — Structural
M00645815-S4-ST
04/29/2026
Violation issued (HPD, closed)
A
04/22/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
03/27/2026
Objection resolved — Addressed
03/24/2026
Objection resolved — Addressed
03/04/2026
Objection raised — Cost
03/04/2026
Objection raised — Admin
02/18/2026
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
02/10/2026
Special inspection requirement — Post-installed Anchors
Alexander Sheyman
02/10/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
02/10/2026
Special inspection requirement — Seismic Resistance of Plumbing, Mechanical, Fuel Gas, and Electrical Components
Alexander Sheyman
01/27/2026
Filed — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-P6
01/26/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
01/26/2026
Special inspection requirement — Post-installed Anchors
Alexander Sheyman
01/26/2026
Special inspection requirement — Seismic Resistance of Plumbing, Mechanical, Fuel Gas, and Electrical Components
Alexander Sheyman
01/23/2026
Inspection — Fail-Final PL - Up to 3 Requested Floors
Fail
View inspection ↗
12/24/2025
Inspection — Certified Sprinkler-SP-Fixtures-Finish
Certified
View inspection ↗
12/09/2025
Filed — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-P5
12/03/2025
Permit issued — Sprinklers
M00645815-S3-EW-SP
12/03/2025
Inspection — Fail-Final PL - Up to 3 Requested Floors
Fail
View inspection ↗
11/14/2025
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
10/28/2025
Violation issued (ECB, closed)
Construction
09/11/2025
Permit issued — Plumbing
M00645815-S2-PL
08/19/2025
Signed off — Alteration
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE AS PER PLANS. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
M00877998-I1
08/19/2025
Signed off — Alteration
PROPOSED INSTALLATION OF TEMPORARY PIPE SCAFFOLD AS PER PLANS. WORK SHALL COMPLY WITH CHAPTER #33 OF THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
M00877984-I1
08/19/2025
Signed off — Alteration
M00877918-I1
06/04/2025
Violation issued (HPD, closed)
A
03/20/2025
Special inspection requirement — Sprinkler Systems
Alexander Sheyman
03/20/2025
Special inspection requirement — Post-installed Anchors
Alexander Sheyman
03/20/2025
Special inspection requirement — Seismic Isolation Systems
Alexander Sheyman
03/20/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
03/11/2025
Filed — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-P3
03/10/2025
Filed — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-P4
03/05/2025
Special inspection requirement — Seismic Isolation Systems
Alexander Sheyman
03/05/2025
Special inspection requirement — Sprinkler Systems
Alexander Sheyman
03/05/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
03/05/2025
Special inspection requirement — Post-installed Anchors
Alexander Sheyman
12/23/2024
Violation issued (ECB, closed)
Construction
12/23/2024
Violation issued (ECB, closed)
Unknown
09/23/2024
Permit issued — Sidewalk Shed
M00877918-I1-SH
09/23/2024
Permit issued — Construction Fence
M00877998-I1-FN
09/23/2024
Permit issued — Supported Scaffold
M00877984-I1-SF
09/23/2024
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
09/20/2024
Violation issued (ECB, closed)
Construction
09/20/2024
Violation issued (ECB, closed)
Construction
09/20/2024
Violation issued (ECB, closed)
Construction
09/19/2024
Special inspection requirement — Energy Code Compliance Inspections
Alexander Sheyman
09/19/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
09/11/2024
Filed — Alteration CO
Subsequent filing for Plumbing work in conjunction with Alt-CO # M00645815-I1 to provide new residential plumbing fixtures, new gas pipe and gas water heaters; pipe installation for domestic hot, cold and hot water recirculation lines.
M00645815-P2
05/10/2024
Objection resolved — Addressed
04/01/2024
Violation issued (HPD, closed)
A
02/26/2024
Inspection — Pass-Final PL - Up to 9 Requested Floors
Pass
View inspection ↗
02/01/2024
Permit issued — General Construction
M00645815-I1-GC
01/03/2024
Special inspection requirement — Energy Code Compliance Inspections
Alexander Sheyman
01/03/2024
Special inspection requirement — Fire-Resistant Penetrations and Joints
Alexander Sheyman
11/15/2023
Violation issued (HPD, closed)
I
10/31/2023
Objection raised — Scope
Latest 60 of 174 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralSigned-offJJS Management05/18/2026
DOB NOWSprinklersPermit IssuedExpert Fire Sprinkler12/03/2025
DOB NOWPlumbingPermit IssuedBT's Plumbing and Heating09/11/2025
DOB NOWSidewalk ShedSigned-offEmpire City Construction09/23/2024
DOB NOWConstruction FenceSigned-offEmpire City Construction09/23/2024
DOB NOWSupported ScaffoldSigned-offEmpire City Construction09/23/2024
DOB NOWGeneral ConstructionPermit IssuedJJS Management02/01/2024
DOB NOWPlumbingPermit IssuedVerrazano Plumbing Cont10/26/2023
DOB NOWMechanical SystemsSigned-offJJS Management10/25/2023
DOB NOWSidewalk ShedSigned-offEmpire City Construction09/13/2023
DOB NOWConstruction FenceSigned-offEmpire City Construction09/13/2023
DOB NOWSupported ScaffoldSigned-offEmpire City Construction09/12/2023
DOB NOWSidewalk ShedSigned-offEmpire City Construction06/09/2023
DOB NOWConstruction FenceSigned-offEmpire City Construction06/09/2023
DOB NOWSupported ScaffoldSigned-offEmpire City Construction06/09/2023
DOB NOWPlumbingPermit IssuedEmpire Plumbing04/20/2023
DOB NOWSprinklersPermit IssuedEmpire Plumbing03/17/2023
DOB NOWGeneral ConstructionPermit IssuedJJS Management02/08/2023
DOB NOWMechanical SystemsSigned-offJJS Management11/10/2022
BISPLISSUEDDemar Plumbing01/24/2013
BISMHISSUEDDamo Construction Co01/21/2011
BISOTISSUEDDamo Construction Co01/18/2011
BISEQISSUEDLKR Construction03/17/2010
BISPLISSUEDMetro03/15/2010
BISMHISSUEDDamo Construction Co12/28/2009
BISMHISSUEDKatz Metal Fabricators10/09/2009
BISPLISSUEDMetro03/17/2009
BISOTISSUEDDamo Construction Co02/20/2009
BISPLISSUEDNew York Heating10/19/2007
BISBLISSUEDNew York Heating10/19/2007
BISPLISSUEDWasoff Plumbing & Utility Co02/13/1998
BISBLISSUEDWasoff Plumbing & Utility Co02/13/1998
1 project · most recent 01/27/2026
Air Conditioning Systems Heating Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
01/27/2026Signed-offJJS ManagementAir Conditioning Systems, Heating Systems, Ventilation Systems
Cooling
Mitsubishi Electric MXZ-4C36NAHZ2 36,000 BTU · Condensing Unit ×4
MXZ-3C24NAHZ2 23,600 BTU · Condensing Unit ×2
MXZ-3C30NAHZ2 27,400 BTU · Condensing Unit ×2
PUZ-HA30NHA5 27,000 BTU · Condensing Unit ×2
Heating
Mitsubishi Electric MXZ-4C36NAHZ2 45,000 BTU · Condensing Unit ×4
MXZ-3C24NAHZ2 24,600 BTU · Condensing Unit ×2
MXZ-3C30NAHZ2 27,600 BTU · Condensing Unit ×2
PUZ-HA30NHA5 32,000 BTU · Condensing Unit ×2
Berko FRC4020 6,825 BTU · Electric Heater ×6
Ventilation
Greenheck SP-B70 50 CFM · Exhaust Fan ×6
1 project · most recent 01/27/2026
Gas Storm Water/Sanitary
FiledStatusContractorScope
01/27/2026Permit IssuedBT's Plumbing and HeatingGas, Storm, Water/Sanitary
7 projects · most recent 07/14/2026
General Wiring
FiledStatusContractorScope
07/14/2026Pending Payment VerificationAE ElectricGeneral Wiring
07/14/2026Pending Payment VerificationAE ElectricGeneral Wiring
07/10/2026Pending Payment VerificationAE ElectricGeneral Wiring
10/22/2023CompleteAE ElectricGeneral Wiring
05/22/2023CompleteRichard Neu—
02/27/2023Permit Issued5 J'S Electl ContsGeneral Wiring
11/22/2022Complete5 J'S Electl Conts—
1 project · most recent 01/27/2026
Steel Masonry Wood
FiledStatusContractorScope
01/27/2026Signed-offJJS ManagementSteel, Masonry, Wood
▾Field Inspections (DOB CAP) — 7
DateTypeResultReport
10/08/2026Pass-Final PL - Up to 9 Requested FloorsPassView ↗
04/22/2026Pass-Final CND-Occupancy InspectionPassView ↗
02/18/2026Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
01/23/2026Fail-Final PL - Up to 3 Requested FloorsFailView ↗
12/24/2025Certified Sprinkler-SP-Fixtures-FinishCertifiedView ↗
12/03/2025Fail-Final PL - Up to 3 Requested FloorsFailView ↗
02/26/2024Pass-Final PL - Up to 9 Requested FloorsPassView ↗
▾Special Inspection Requirements (DOB NOW) — 27
DateRequirementInspectorRole
02/10/2026Post-installed AnchorsAlexander Sheymanspecial
02/10/2026Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
02/10/2026Seismic Resistance of Plumbing, Mechanical, Fuel Gas, and Electrical ComponentsAlexander Sheymanspecial
01/26/2026Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
01/26/2026Post-installed AnchorsAlexander Sheymanspecial
01/26/2026Seismic Resistance of Plumbing, Mechanical, Fuel Gas, and Electrical ComponentsAlexander Sheymanspecial
03/20/2025Sprinkler SystemsAlexander Sheymanspecial
03/20/2025Post-installed AnchorsAlexander Sheymanspecial
03/20/2025Seismic Isolation SystemsAlexander Sheymanspecial
03/20/2025Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
03/05/2025Seismic Isolation SystemsAlexander Sheymanspecial
03/05/2025Sprinkler SystemsAlexander Sheymanspecial
03/05/2025Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
03/05/2025Post-installed AnchorsAlexander Sheymanspecial
09/19/2024Energy Code Compliance InspectionsAlexander Sheymanprogress
09/19/2024Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
01/03/2024Energy Code Compliance InspectionsAlexander Sheymanprogress
01/03/2024Fire-Resistant Penetrations and JointsAlexander Sheymanspecial
10/31/2023Structural Cold-Formed SteelWilliam DeGraaffspecial
10/25/2023Post-installed AnchorsWilliam DeGraaffspecial
10/25/2023Structural Steel - High Strength BoltingWilliam DeGraaffspecial
10/25/2023Structural Stability – Alterations of existing buildingsWilliam DeGraaffspecial
10/24/2023Structural Steel - DetailsWilliam DeGraaffspecial
10/24/2023MasonryWilliam DeGraaffspecial
07/19/2023FinalWilliam DeGraaffprogress
Latest 25 of 27.
▾Documents — 180 on file (BIS + DOB NOW)
▸Plans & Drawings14
▸DOB NOWPlans/Sketch14
08/31/2026M00877984-I1Request digital key ↗
08/31/2026M00877998-I1Request digital key ↗
08/31/2026M00877918-I1Request digital key ↗
Showing 3 of 14 on file for this type
▸Applications & Permits46
▸BISPLAN / WORK APPROVAL APPLICATION25
04/22/2013110452634Open ↗
03/21/2013110452634Open ↗
04/08/2011110452634Open ↗
Showing 3 of 25 on file for this type
▸BISWORK PERMIT APPLICATION12
01/28/2013110452634Open ↗
05/17/2011120134050Open ↗
02/01/2011110452634Open ↗
Showing 3 of 12 on file for this type
▸DOB NOWLPC Approval/Permit9
08/13/2026M00645815-P1Open ↗
08/13/2026M00645815-I1Open ↗
08/13/2026M00645815-P3Open ↗
Showing 3 of 9 on file for this type
▸Seals & Professional Certifications51
▸DOB NOWSpecial Inspector Seal & Signature14
09/23/2026M00645815-S3Open ↗
09/23/2026M00645815-S3Open ↗
09/01/2026M00645815-S4Open ↗
Showing 3 of 14 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature14
08/31/2026M00877998-I1Open ↗
08/31/2026M00877918-I1Open ↗
08/28/2026M00645815-S3Open ↗
Showing 3 of 14 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION12
05/23/2011110452634Open ↗
05/23/2011110452634Open ↗
05/11/2011110452634Open ↗
Showing 3 of 12 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST4
03/18/2010120292673Open ↗
08/17/2009120134050Open ↗
04/18/2009110452634Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
09/01/2026M00645815-S4Open ↗
08/24/2026M00645815-P1Open ↗
08/24/2026M00645815-I1Open ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM3
03/18/2010120292673Open ↗
08/17/2009120134050Open ↗
02/12/2009110452634Open ↗
▸Trade Schedules & Equipment24
▸BISSCHEDULE B - PLUMBING18
04/22/2013110452634Open ↗
03/21/2013110452634Open ↗
12/07/2010110452634Open ↗
Showing 3 of 18 on file for this type
▸BISSELF-CERT PLUMBING NOTICE6
03/21/2013110452634Open ↗
03/07/2011110452634Open ↗
10/29/2010110452634Open ↗
Showing 3 of 6 on file for this type
▸Safety & Tenant Protection2
▸DOB NOWStreet Tree Checklist2
08/13/2026M00645815-P2Open ↗
08/13/2026M00645815-I1Open ↗
▸Environmental & Asbestos15
▸DOB NOWDEP ACP-5: Asbestos Assessment Report11
08/28/2026M00645815-S3Open ↗
08/28/2026M00645815-P6Open ↗
08/28/2026M00645815-S2Open ↗
Showing 3 of 11 on file for this type
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'4
03/18/2010120292673Open ↗
08/17/2009120134050Open ↗
02/12/2009110452634Open ↗
Showing 3 of 4 on file for this type
▸Approvals, Objections & Sign-offs8
▸BISADMINISTRATIVE OBJECTIONS5
03/18/2010120292673Open ↗
08/20/2009120134050Open ↗
08/17/2009120134050Open ↗
Showing 3 of 5 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION1
03/30/2011120292673Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
03/30/2011120292673Open ↗
▸BISLANDMARKS APPROVAL1
02/12/2009110452634Open ↗
▸Cost, Insurance & Ownership4
▸BISCOST AFFIDAVIT3
08/17/2009120134050Open ↗
02/12/2009110452634Open ↗
11/18/2008110390924Open ↗
▸BISHIC LICENSE OR AFFIDAVIT1
04/18/2009110452634Open ↗
▸Filing & Intake Forms11
▸BISADDITIONAL INFORMATION7
04/22/2013110452634Open ↗
11/03/2011110452634Open ↗
10/07/2010110452634Open ↗
Showing 3 of 7 on file for this type
▸BISEFILING COVER SHEET4
03/18/2010120292673Open ↗
08/17/2009120134050Open ↗
02/12/2009110452634Open ↗
Showing 3 of 4 on file for this type
▸Other Documents5
▸DOB NOWProof of Historic Building2
08/13/2026M00645815-I1Open ↗
08/13/2026M00645815-P2Open ↗
▸DOB NOWProperty Ownership Certification2
08/28/2026M00645815-P2Open ↗
08/14/2026M00645815-I1Open ↗
▸BISUnknown1
08/20/2009120134050Open ↗