← Back
BuildNYC
Office with commercial, 7-19 stories
541 WEST 21ST STREET
MANHATTAN · BIN 1012308
💬 Discuss this project
1915Year Built
8Stories
O6Building Class
M1-5Zoning
55,141 sfGross Floor Area
2Units
LL97 Covered19 Active Violations 8 unresolved · 11 paperwork only 2 likely answered 28 old, status unconfirmed ▸FISP: No Report Filed
Office with commercial, 7-19 stories · Owner of record: Erbo Properties · 7,466 sf lot · 7.39 FAR built · Flood zone X500
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingFire ProtectionEquipmentCivilGeneral
Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.
Whole building & multi-floor projectsErbo Properties3 filings
RoofErbo Properties LLC1p · 3 filings · 11 docs
BulkheadErbo Properties1p · 2 filings · 8 docs
Floor 8Mechanical roof and bulkhead construction1 filing · 4 docs
Floor 7
Floor 6
Floor 5
Floor 4
Floor 3
Floor 2
Floor 1Mechanical roof and bulkhead construction6 filings · 15 docs
CellarMechanical roof and bulkhead construction2 filings · 7 docs
Site & exteriorTemporary construction fence and sidewalk shed4 filings · 12 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
Erbo Properties3507/08/2026
Cannon Media603/21/2026
Frenbmar Associates303/21/2026
Fuel Outdoor103/21/2026
Frendmar103/21/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
12/29/2025$46.2M—— → —$838/sf building
▾Design Consultants (Architect / Engineer of Record)
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
KM Associates of New York503/21/2026
AE Design Solution403/21/2026
SNR Expediting Design603/21/2026
Evangelista103/21/2026
Spring Scaffolding203/21/2026
K & M Associates503/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
Kings Group NYScaffold2107/08/2026
Core Scaffold SystemsScaffold1307/08/2026
BRW ContractingScaffold407/08/2026
Spring ScaffoldingScaffold303/21/2026
Accurate MechanicalFire Protection207/08/2026
GSB Plumbing & Heating CoPlumbing207/08/2026
P & D MechanicalFire Protection107/08/2026
Sam Katz Electric ContractingElectrical103/21/2026
Emerald Mechanical Solutions IPlumbing107/08/2026
Concorde Electrical ServicesElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
Socotec Engineering4983411/18/2019
Building Lifecycle
All (123)Filed (18)Permit Issued (29)Signed Off (7)Facade (FISP) (4)Violation (60)Objection (4)Special Inspection (1)
04/08/2025
Violation issued (ECB, open)
Local Law
03/13/2025
Permit issued — Construction Fence
M00492920-I1-FN
12/01/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
08/02/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/23/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
05/02/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
03/19/2024
Permit issued — Construction Fence
M00492920-I1-FN
02/22/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
12/20/2023
Violation issued (ECB, open)
Construction
08/29/2023
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.
M00329624-I1
08/29/2023
Signed off — Alteration
M00338172-I1
08/29/2023
Signed off — Alteration
INSTALLATION OF PIPE SCAFFOLDING
M00405073-I1
08/29/2023
Signed off — Alteration
M00194142-I1
05/03/2023
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
04/22/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
03/29/2023
Permit issued — Construction Fence
M00492920-I1-FN
02/24/2023
Signed off — Alteration
M00405058-I1
02/02/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
12/29/2022
Signed off — Alteration
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE AS PER PLANS. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
M00278100-I1
12/01/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
11/03/2022
Violation issued (ECB, open)
Local Law
11/02/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
08/21/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
08/02/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/01/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
05/24/2022
Permit issued — Protection and Mechanical Methods
M00602528-I1-PM
04/26/2022
Permit issued — Boiler Equipment
M00244808-I1-BE
04/01/2022
Permit issued — Construction Fence
M00492920-I1-FN
03/25/2022
Permit issued — Sidewalk Shed
M00405058-I1-SH
03/21/2022
Permit issued — Sidewalk Shed
M00492910-I1-SH
02/17/2022
Permit issued — Standpipe
M00240123-I1-EW-SD
02/02/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
12/01/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
11/05/2021
Filed — Alteration
Suspended Hanging Scaffold Installation as per plans filed herewith. No change in use, egress or occupancy.
M00602528-I1
11/05/2021
Permit issued — Protection and Mechanical Methods
M00602528-I1-PM
11/02/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
10/08/2021
Permit issued — Boiler Equipment
M00240170-I1-BE
09/27/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
09/10/2021
Violation issued (ECB, closed)
Construction
08/02/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/20/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/02/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/01/2021
Permit issued — Construction Fence
M00492920-I1-FN
03/31/2021
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
03/26/2021
Permit issued — Sidewalk Shed
M00492910-I1-SH
03/26/2021
Objection raised — Scope
03/26/2021
Objection resolved — Addressed
03/26/2021
Objection raised — Inspections
03/26/2021
Objection resolved — Addressed
03/25/2021
Filed — Alteration
INSTALLATION OF TEMPORARY PIPE SCAFFOLD AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M00492910-I1
03/25/2021
Filed — Alteration
INSTALLATION OF TEMPORARY FENCE AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M00492920-I1
03/19/2021
Permit issued — Sidewalk Shed
M00338172-I1-SH
01/08/2021
Permit issued — Construction Fence
M00278100-I1-FN
01/06/2021
Violation issued (ECB, open)
Construction
12/09/2020
Violation issued (ECB, closed)
Construction
10/27/2020
Permit issued — Boiler Equipment
M00240170-I1-BE
10/14/2020
Permit issued — Sidewalk Shed
M00194142-I1-SH
Latest 60 of 123 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWConstruction FencePermit IssuedCore Scaffold Systems03/13/2025
DOB NOWConstruction FencePermit IssuedCore Scaffold Systems03/19/2024
DOB NOWConstruction FencePermit IssuedCore Scaffold Systems03/29/2023
DOB NOWProtection and Mechanical MethodsPermit IssuedBRW Contracting05/24/2022
DOB NOWBoiler EquipmentPermit IssuedJack Piccini04/26/2022
DOB NOWConstruction FencePermit IssuedCore Scaffold Systems04/01/2022
DOB NOWSidewalk ShedSigned-offKings Group NY03/25/2022
DOB NOWSidewalk ShedPermit IssuedCore Scaffold Systems03/21/2022
DOB NOWStandpipePermit IssuedAccurate Mechanical02/17/2022
DOB NOWProtection and Mechanical MethodsPermit IssuedBRW Contracting11/05/2021
DOB NOWBoiler EquipmentPermit IssuedGSB Plumbing & Heating Co10/08/2021
DOB NOWConstruction FencePermit IssuedCore Scaffold Systems04/01/2021
DOB NOWSidewalk ShedPermit IssuedCore Scaffold Systems03/26/2021
DOB NOWSidewalk ShedSigned-offKings Group NY03/19/2021
DOB NOWConstruction FenceSigned-offKings Group NY01/08/2021
DOB NOWBoiler EquipmentPermit IssuedGSB Plumbing & Heating Co10/27/2020
DOB NOWSidewalk ShedSigned-offKings Group NY10/14/2020
DOB NOWSupported ScaffoldSigned-offKings Group NY10/01/2020
DOB NOWSidewalk ShedSigned-offKings Group NY10/01/2020
DOB NOWSupported ScaffoldSigned-offSpring Scaffolding07/16/2020
DOB NOWBoiler EquipmentPermit IssuedJack Piccini07/10/2020
DOB NOWSidewalk ShedSigned-offKings Group NY03/30/2020
DOB NOWSupported ScaffoldSigned-offKings Group NY03/11/2020
DOB NOWConstruction FenceSigned-offKings Group NY12/17/2019
DOB NOWStandpipePermit IssuedAccurate Mechanical12/13/2019
DOB NOWSprinklersPermit IssuedP & D Mechanical11/26/2019
DOB NOWPlumbingSigned-offA & C Plumbing & Heating Co11/04/2019
DOB NOWSidewalk ShedSigned-offKings Group NY10/22/2019
DOB NOWSupported ScaffoldPermit IssuedKings Group NY10/16/2019
BIS—ISSUEDCauldwell Wingate Co10/03/2022
BISOTISSUEDValcourt Consulting and D03/11/2022
BISOTISSUEDCauldwell Wingate Co10/12/2021
BIS—ISSUEDCauldwell Wingate Co09/28/2021
BIS—ISSUEDCauldwell Wingate Co08/11/2021
BISOTISSUEDAlba Services04/16/2021
BIS—ISSUEDCauldwell Wingate Co04/13/2021
BIS—ISSUEDCauldwell Wingate Co03/05/2021
BISOTISSUEDCauldwell Wingate Co10/09/2020
BIS—ISSUEDCauldwell Wingate Co10/09/2020
BISOTISSUEDAlba Services09/02/2020
+ 23 more permits on file
1 project · most recent 10/04/2019
FiledStatusContractorScope
10/04/2019Permit IssuedAccurate Mechanical4 outlets
6 projects · most recent 03/21/2021
General Wiring
FiledStatusContractorScope
03/21/2021Permit IssuedV. Vass Electric—
08/14/2020Complete5 J'S Electl Conts—
04/15/2020Permit IssuedNova ElectricGeneral Wiring
03/06/2020Permit IssuedTuxedo Electrical Contracting—
11/04/2019Permit IssuedNova ElectricGeneral Wiring
10/22/2019Permit IssuedWCK Electric—
2 projects · most recent 03/25/2021
Sidewalk Shed Fence
FiledStatusContractorScope
03/25/2021Permit IssuedCore Scaffold SystemsSidewalk Shed
03/25/2021Permit IssuedCore Scaffold SystemsFence
▾Special Inspection Requirements (DOB NOW) — 1
DateRequirementInspectorRole
10/03/2019Standpipe SystemsALEXIS SCHLESSINGERMANspecial
▾Documents — 361 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch - Supported Scaffold6
09/05/2026M00194113-I1Request digital key ↗
09/05/2026M00329624-I1Request digital key ↗
09/04/2026M00368664-I1Request digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch3
09/04/2026M00492910-I1Request digital key ↗
09/03/2026M00602528-I1Request digital key ↗
08/14/2026M00492920-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Sidewalk Shed3
09/05/2026M00194142-I1Request digital key ↗
09/05/2026M00338172-I1Request digital key ↗
09/04/2026M00405058-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Boiler Equipment2
09/05/2026M00244808-I1Request digital key ↗
09/05/2026M00240170-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Construction Fence1
09/05/2026M00278100-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Standpipe1
09/05/2026M00240123-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Sprinkler1
09/05/2026M00266884-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing1
09/05/2026M00233818-I1Request digital key ↗
▸Applications & Permits72
▸BISPLAN / WORK APPROVAL APPLICATION37
11/19/2025121204990Open ↗
09/12/2025121204990Open ↗
08/19/2025121204990Open ↗
Showing 3 of 37 on file for this type
▸BISWORK PERMIT APPLICATION29
10/04/2022121204990Open ↗
03/11/2022123804491Open ↗
08/11/2021121204990Open ↗
Showing 3 of 29 on file for this type
▸BISPARTIAL DEMO PLAN & DS1 (FOR AL/EW-OT PERMITS)2
06/01/2021140994887Open ↗
08/21/2020123804507Open ↗
▸BISPARTIAL DEMO: 10-DAY NOTICE (FOR AL/EW-OT PERMITS)2
06/01/2021140994887Open ↗
08/21/2020123804507Open ↗
▸BISBPP-5 - Authorization to the Department of Transportation1
06/17/2020140881589Open ↗
▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1
09/30/2021121204990Open ↗
▸Zoning, Tax Lot & Property Records3
▸BISZONING DIAGRAM2
01/15/2020121204990Open ↗
01/14/2020121204990Open ↗
▸BISFLOOD ZONE COMPLIANCE1
03/11/2022123804507Open ↗
▸Seals & Professional Certifications63
▸DOB NOWDPL-1: Design Professional Seal & Signature18
09/05/2026M00233818-I1Open ↗
09/05/2026M00244808-I1Open ↗
09/05/2026M00194142-I1Open ↗
Showing 3 of 18 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION16
03/09/2020121204990Open ↗
03/09/2020121204990Open ↗
03/09/2020121204990Open ↗
Showing 3 of 16 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST11
10/08/2019123885698Open ↗
04/29/2019123804507Open ↗
04/26/2019123804491Open ↗
Showing 3 of 11 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM7
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 7 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT5
10/08/2019123885698Open ↗
04/29/2019123804507Open ↗
04/26/2019123804491Open ↗
Showing 3 of 5 on file for this type
▸BISAPPLICANT OWNER SIGNATURE2
01/13/2021140994887Open ↗
01/13/2020140881589Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2
01/13/2021140994887Open ↗
Showing 1 of 2 on file for this type
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature1
09/02/2026M00240123-I1Open ↗
▸Trade Schedules & Equipment3
▸BISSCHEDULE B - PLUMBING2
07/20/2020121204990Open ↗
07/26/2019121204990Open ↗
▸DOB NOWFDNY: Letter of No Objection1
08/13/2026M00266884-I1Open ↗
▸Safety & Tenant Protection31
▸DOB NOWHPD-1: Anti-Harassment Area Checklist18
09/05/2026M00278100-I1Open ↗
09/04/2026M00405073-I1Open ↗
08/13/2026M00329624-P1Open ↗
Showing 3 of 18 on file for this type
▸BISANTI-HARASSMENT CHECKLIST: CLINTON4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸BISSTREET TREE CHECKLIST4
06/17/2020140881589Open ↗
01/13/2020140881589Open ↗
11/22/2019121204990Open ↗
Showing 3 of 4 on file for this type
▸BISHPD: SRO MD CERTIFICATE OF NO HARASSMENT2
04/26/2019123804507Open ↗
04/26/2019123804491Open ↗
▸BISANTI-HARASSMENT CHECKLIST1
12/03/2019121204990Open ↗
▸BISSTREET TREES: RECEIPT OF STREET TREES SITE PLAN1
09/04/2020140881589Open ↗
▸BISSRO MD ANTI-HARASSMENT CHECKLIST1
10/08/2019123885698Open ↗
▸Environmental & Asbestos17
▸BISASBESTOS: CERTIFICATION (DEP ACP5)10
01/13/2021140994887Open ↗
01/15/2020121204990Open ↗
10/08/2019123885698Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
09/05/2026M00233818-I1Open ↗
09/05/2026M00244808-I1Open ↗
09/05/2026M00240170-I1Open ↗
Showing 3 of 5 on file for this type
▸BISASBESTOS: COMPLETION OR CLOSEOUT (ACP20/21/5)1
08/21/2020123804507Open ↗
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Energy Compliance13
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS6
03/09/2020121204990Open ↗
03/09/2020121204990Open ↗
10/08/2019123885698Open ↗
Showing 3 of 6 on file for this type
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3
01/13/2021140994887Open ↗
12/13/2019121204990Open ↗
12/13/2019121204990Open ↗
▸BISAS-BUILT ENERGY ANALYSIS (EN2)2
03/23/2022123885698Open ↗
03/11/2022123804507Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1
01/13/2021140994887Open ↗
▸BISAS-BUILT ENERGY ANALYSIS1
11/10/2021140994887Open ↗
▸Inspections & Test Reports23
▸BISTECHNICAL REPORT: RESPONSIBILITY11
03/03/2022123804507Open ↗
03/03/2022123804507Open ↗
11/10/2021140994887Open ↗
Showing 3 of 11 on file for this type
▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX9
11/08/2021121204990Open ↗
11/08/2021121204990Open ↗
10/19/2021121204990Open ↗
Showing 3 of 9 on file for this type
▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER2
03/09/2020121204990Open ↗
02/19/2020121204990Open ↗
▸BISMECHANICAL DEMOLITION1
03/11/2022123804507Open ↗
▸Approvals, Objections & Sign-offs30
▸BISADMINISTRATIVE OBJECTIONS7
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 7 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION6
01/25/2021140994887Open ↗
01/15/2020121204990Open ↗
12/03/2019121204990Open ↗
Showing 3 of 6 on file for this type
▸BISSUPERSEDING LETTER6
08/11/2021121204990Open ↗
04/13/2021121204990Open ↗
03/05/2021121204990Open ↗
Showing 3 of 6 on file for this type
▸BISSCHEDULE A - OCCUPANCY / USE4
11/19/2025121204990Open ↗
03/21/2022121204990Open ↗
11/29/2019121204990Open ↗
Showing 3 of 4 on file for this type
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST3
03/29/2022123885698Open ↗
11/17/2021140994887Open ↗
Showing 2 of 3 on file for this type
▸BISFINAL2
03/23/2022123885698Open ↗
03/11/2022123804507Open ↗
▸BISSHED LETTER1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISLETTERS - APPRVD FAB CERT-INTENT1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Cost, Insurance & Ownership29
▸BISCOST AFFIDAVIT20
12/01/2025121204990Open ↗
12/01/2025121204990Open ↗
11/10/2021140994887Open ↗
Showing 3 of 20 on file for this type
▸BISPROJECT-SPECIFIC GL INSURANCE6
10/04/2022121204990Open ↗
11/16/2021121204990Open ↗
06/02/2021140994887Open ↗
Showing 3 of 6 on file for this type
▸BISCOST AFFIDAVIT (FINAL): PW32
03/23/2022123885698Open ↗
03/11/2022123804507Open ↗
▸BISAcord 25 (Acord Certificate of Liability Insurance)1
10/04/2022121204990Open ↗
▸Filing & Intake Forms47
▸BISADDITIONAL INFORMATION19
03/04/2022123804507Open ↗
03/04/2022123804507Open ↗
11/16/2021121204990Open ↗
Showing 3 of 19 on file for this type
▸BISEFILING COVER SHEET14
10/08/2019123885698Open ↗
06/29/2019121204990Open ↗
04/29/2019123804507Open ↗
Showing 3 of 14 on file for this type
▸BISBOROUGH INTAKE FORM11
06/17/2022121204990Open ↗
08/11/2021121204990Open ↗
04/13/2021121204990Open ↗
Showing 3 of 11 on file for this type
▸BISEFILING JOB APPLICATION COVER SHEET3
01/13/2021140994887Open ↗
01/13/2020140881589Open ↗
Showing 2 of 3 on file for this type
▸Other Documents12
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION7
10/04/2022121204990Open ↗
05/15/2020123804491Open ↗
Showing 2 of 7 on file for this type
▸BISBPP - SUPPORTING DOCUMENTATION2
09/04/2020140881589Open ↗
01/13/2020140881589Open ↗
▸BISPLOT DIAGRAM1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸BISBPP - DOT Builders Pavement Unit Waiver Request Form1
09/04/2020140881589Open ↗
▸BISLAA - Supporting Documentation1
12/03/2019121204990Open ↗