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Office only, 7-19 stories
609 WEST 51 STREET
MANHATTAN · Hell's Kitchen · BIN 1027141
💬 Discuss this project
1924Year Built
7Stories
O3Building Class
M2-4Zoning
121,638 sfGross Floor Area
2Units
LL97 Covered52 Open Violations 49 unresolved · 3 paperwork only ▸FISP: SWARMP
Office only, 7-19 stories · Owner of record: PIANO DEVELOPMENT CORPORATION · 25,100 sf lot · 4.85 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalFire ProtectionGeneralOther
Permit Issued — active, not yet Signed-off
RoofUnder Construction3p · 1 filing · 20 docs
Floor 73p · 3 filings · 6 docs
Floor 6Under Construction1p · 3 filings · 20 docs
Floor 5
Floor 4
Floor 3
Floor 2
Floor 12p · 3 filings · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
PIANO DEVELOPMENT2203/22/2026
PRADA USA CORP TOMMASO IV103/22/2026
R R CONSTRUCTION103/22/2026
POST DEVELOPMENT403/22/2026
CONSTRUCTION SVS CON NY103/21/2026
PRADA103/21/2026
PRIME PROPERTIES OF NYC203/21/2026
CONSTRUCTION SERVICES CONSULTING303/21/2026
PRIME PROPERTIES203/21/2026
PIANO DEVELOPMENT C O PRADA503/21/2026
▾Design Consultants (Architect / Engineer of Record)
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
MUNICIPAL BUILDING CONSULTANTS303/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
BENCHMARK BUILDERS LLCGeneral Contractor209/22/2026
DIAMOND TSAIElectrical103/21/2026
VAN VASSELLElectrical103/21/2026
MARLIN MECHANICAL INCGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
DOMANI INSPECTION SERVICE843307/29/2026
Building Lifecycle
All (115)Filed (6)Permit Issued (3)Facade (FISP) (16)Violation (60)Objection (11)Special Inspection (19)
09/21/2026
Permit issued — Structural
M01366966-S2-ST
07/31/2026
Permit issued — Structural
M01366966-S2-ST
07/29/2026
Filed — Alteration
Modification of existing rooftop equipment dunnage framing and new steel beams to existing on dunnage level to support new replacement chillers and associated pumps as per plans filed herewith. No change in use, egress or occupancy.
M01366966-S2
07/24/2026
Objection raised — Accessibility
06/30/2026
Special inspection requirement — Structural Steel - High Strength Bolting
JOHN MCMONAGLE
06/30/2026
Special inspection requirement — Final
JOHN MCMONAGLE
06/30/2026
Special inspection requirement — Structural Steel - Welding
JOHN MCMONAGLE
06/30/2026
Special inspection requirement — Structural Steel - Details
JOHN MCMONAGLE
06/25/2026
Objection resolved — Resolved
06/25/2026
Objection resolved — Resolved
06/23/2026
Objection resolved — Resolved
06/09/2026
Objection raised — Accessibility
06/03/2026
Objection raised — Accessibility
06/03/2026
Objection raised — Accessibility
05/26/2026
Permit issued — Mechanical Systems
M01366966-I1-MS
04/16/2026
Objection raised — Accessibility
04/16/2026
Objection resolved — Addressed
04/16/2026
Objection raised — Admin
04/16/2026
Objection resolved — Open
03/27/2026
Filed — Alteration
Modification of existing rooftop equipment dunnage framing and new steel beams to existing on dunnage level to support new replacement chillers and associated pumps as per plans filed herewith. No change in use, egress or occupancy.
M01366966-S1
03/27/2026
Filed — Alteration
Modification of existing rooftop equipment dunnage framing and new steel beams to existing on dunnage level to support new replacement chillers and associated pumps as per plans filed herewith. No change in use, egress or occupancy.
M01366966-I1
03/17/2026
Special inspection requirement — Energy Code Compliance Inspections
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Structural Steel - Details
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — HVAC-R and service water heating equipment
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Maintenance information
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — HVAC-R and service water heating system controls
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Shutoff dampers
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Ventilation and air distribution system
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Duct leakage testing, insulation and design
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Structural Steel - High Strength Bolting
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Structural Steel - Welding
JOHN MCMONAGLE
03/17/2026
Special inspection requirement — Final
JOHN MCMONAGLE
03/16/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JOHN MCMONAGLE
03/03/2026
Special inspection requirement — Final
JOHN MCMONAGLE
03/03/2026
Special inspection requirement — Mechanical Systems
JOHN MCMONAGLE
12/01/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
09/23/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
09/23/2024
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
06/13/2024
Violation issued (ECB, closed)
Boilers
06/13/2024
Violation issued (ECB, closed)
Boilers
05/02/2024
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
12/01/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/30/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/30/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/30/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/30/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/20/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/20/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/20/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/20/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/02/2023
Filed — No Work
M00882231-I1
04/25/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/25/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/22/2023
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
08/21/2022
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
05/19/2022
Cycle 9 facade report signed — SWARMP
05/18/2022
Cycle 9 facade report submitted
Latest 60 of 115 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWStructuralPermit IssuedBENCHMARK BUILDERS LLC09/21/2026
DOB NOWStructuralPermit IssuedBENCHMARK BUILDERS LLC07/31/2026
DOB NOWMechanical SystemsPermit IssuedMARLIN MECHANICAL INC05/26/2026
BISOTISSUEDQUIXOTIC SYSTEMS INC05/01/2019
BISOTISSUEDTHE CLANCY GROUP INC07/18/2018
BISEQISSUEDCONSTRUCTION SVS CON NY04/06/2018
BISOTISSUEDTHE CLANCY GROUP INC08/28/2017
BISEQISSUEDCONSTRUCTION SVS CON NY04/03/2017
BISEQISSUEDPERIMETER BRIDGE & SCAFFO03/19/2010
BISEQISSUEDPERIMETER BRIDGE & SCAFFO08/19/2009
BISPLISSUEDWTC PLBG & HEATING CORP07/01/2008
BISSPISSUEDWTC PLUMBING & HTG CORP05/27/2008
BISOTISSUEDEUROSTRUCT INC105/20/2008
BISEQISSUEDPEAK SCAFF. LLC12/26/2003
BISSDISSUEDSIRINA FIRE PROTECTION CORP02/21/2003
BISMHISSUEDRICHTER & RATNER CONTRACTING06/17/2002
BISPLISSUEDOLMPIC PLB AND HTG06/14/2002
BIS—ISSUEDPIANO DEVELOPMENT PRADA USA CORP04/16/2002
BISBLISSUEDPETER AGLIARDO03/27/2002
BISFSISSUEDPETER AGLIARDO03/21/2002
BISMHISSUEDRICHTER & RATNER CONTRACTING11/07/2001
BISOTISSUEDRICHTER & RATNER CONTRACTING05/30/2001
BISPLISSUEDOLMPIC PLB AND HTG05/29/2001
BISOTISSUEDRICHTER & RATNER CONTRACTING05/01/2001
BISEQISSUEDATLANTIC HEYDT SCAFFOLD CORP03/29/2001
BISEQRE-ISSUEDATLANTIC HEYDT SCAFFOLD CORP03/27/2001
BIS—ISSUEDSERVICE SIGN ERET. INC.03/01/2001
BISOTISSUEDRICHTER & RATNER CONTRACTING02/22/2001
BISPLISSUEDOLMPIC PLB AND HTG06/09/2000
BISOTISSUEDRICHTER & RATNER CONTRACTING04/14/2000
BISMHISSUEDRICHTER & RATNER CONTRACTING04/12/2000
BISEQISSUEDATLANTIC HEYDT SCAFFOLD CORP04/06/2000
BISEQISSUEDATLANTIC HEYDT SCAFFOLD CORP04/05/2000
BISEQISSUEDATLANTIC HEYDT SCAFFOLD CORP10/26/1999
BISEQISSUEDATLANTIC HEYDT SCAFFOLD CORP10/25/1999
BISOTISSUEDRICHTER & RATNER CONTRACTING09/27/1999
BISMHISSUEDA.J/ CONTRACTING12/03/1997
BIS—ISSUEDPROTO CONST.&DEVLMNT CORP12/22/1992
BISEQISSUEDEASTERN SCAFFOLD03/26/1992
BISEQISSUEDEASTERN SCAFFOLD01/03/1992
+ 2 more permits on file
1 project · most recent 07/29/2026
Air Conditioning Systems
FiledStatusContractorScopeMake / Model / Capacity
07/29/2026Permit IssuedBENCHMARK BUILDERS LLCAir Conditioning Systems
Cooling
Lg KNSLB481A 1,400 CFM · Vrf Outdoor ×4
KUSXB481A 1,400 CFM · Split System ×4
Trane AMC 25 tons · Air Cooled Chiller ×4
2 projects · most recent 06/05/2026
General Wiring
FiledStatusContractorScope
06/05/2026Permit IssuedATLAS-ACON ELEC. SERVICEGeneral Wiring
12/17/2019CompleteAGIR ELECTL SOLUTION INC—
1 project · most recent 07/29/2026
Steel
FiledStatusContractorScope
07/29/2026Permit IssuedBENCHMARK BUILDERS LLCSteel
▾Special Inspection Requirements (DOB NOW) — 19
DateRequirementInspectorRole
06/30/2026Structural Steel - High Strength BoltingJOHN MCMONAGLEspecial
06/30/2026FinalJOHN MCMONAGLEprogress
06/30/2026Structural Steel - WeldingJOHN MCMONAGLEspecial
06/30/2026Structural Steel - DetailsJOHN MCMONAGLEspecial
03/17/2026Energy Code Compliance InspectionsJOHN MCMONAGLEprogress
03/17/2026HVAC-R and service water piping design and insulationJOHN MCMONAGLEenergy_progress
03/17/2026Structural Steel - DetailsJOHN MCMONAGLEspecial
03/17/2026HVAC-R and service water heating equipmentJOHN MCMONAGLEenergy_progress
03/17/2026Maintenance informationJOHN MCMONAGLEenergy_progress
03/17/2026HVAC-R and service water heating system controlsJOHN MCMONAGLEenergy_progress
03/17/2026Shutoff dampersJOHN MCMONAGLEenergy_progress
03/17/2026Ventilation and air distribution systemJOHN MCMONAGLEenergy_progress
03/17/2026Duct leakage testing, insulation and designJOHN MCMONAGLEenergy_progress
03/17/2026Structural Steel - High Strength BoltingJOHN MCMONAGLEspecial
03/17/2026Structural Steel - WeldingJOHN MCMONAGLEspecial
03/17/2026FinalJOHN MCMONAGLEprogress
03/16/2026Fire-Resistant Penetrations and JointsJOHN MCMONAGLEspecial
03/03/2026FinalJOHN MCMONAGLEprogress
03/03/2026Mechanical SystemsJOHN MCMONAGLEspecial
▾Documents — 143 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch3
08/18/2026M01366966-S1Request digital key ↗
08/18/2026M01366966-S2Request digital key ↗
08/18/2026M01366966-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Temporary Place of Assembly3
09/05/2026M00157818-I1Request digital key ↗
09/05/2026M00252618-I1Request digital key ↗
08/31/2026M00882231-I1Request digital key ↗
▸Applications & Permits23
▸BISPLAN / WORK APPROVAL APPLICATION13
05/13/2025103015559Open ↗
05/29/2018140768293Open ↗
07/13/2017123296897Open ↗
Showing 3 of 13 on file for this type
▸BISWORK PERMIT APPLICATION10
10/29/2018140768293Open ↗
07/18/2018123296897Open ↗
04/09/2018140623519Open ↗
Showing 3 of 10 on file for this type
▸Seals & Professional Certifications44
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION11
10/31/2018123296897Open ↗
07/13/2017123296897Open ↗
10/11/2016122784479Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWProgress Inspector Seal & Signature11
09/01/2026M01366966-I1Open ↗
09/01/2026M01366966-I1Open ↗
09/01/2026M01366966-I1Open ↗
Showing 3 of 11 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
09/01/2026M01366966-I1Open ↗
09/01/2026M01366966-I1Open ↗
08/24/2026M01366966-S1Open ↗
Showing 3 of 6 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
08/31/2026M00882231-I1Open ↗
08/18/2026M01366966-I1Open ↗
08/18/2026M01366966-S1Open ↗
Showing 3 of 6 on file for this type
▸BISPROFESSIONAL CERTIFICATION STATEMENT4
03/29/2017140623519Open ↗
06/14/2016122784479Open ↗
06/14/2016122784479Open ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST2
01/30/2015122254256Open ↗
08/24/2009120134381Open ↗
▸BISAPPLICANT OWNER SIGNATURE1
05/29/2018140768293Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
03/29/2017140623519Open ↗
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1
03/29/2017140623519Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1
08/24/2009120134381Open ↗
▸Trade Schedules & Equipment8
▸BISSELF-CERT PLUMBING NOTICE4
08/30/2008110151718Open ↗
08/16/2008110151718Open ↗
07/10/2008110152575Open ↗
Showing 3 of 4 on file for this type
▸BISSCHEDULE B - PLUMBING2
05/01/2008110152575Open ↗
04/30/2008110151718Open ↗
▸BISSPRINKLER INSP REPORT : FP-851
07/11/2008110152575Open ↗
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE1
06/14/2016122784479Open ↗
▸Safety & Tenant Protection6
▸DOB NOWHPD-2: Clinton Special District Anti-Harassment Checklist3
08/18/2026M01366966-I1Open ↗
08/18/2026M01366966-S1Open ↗
08/18/2026M01366966-S2Open ↗
▸BISANTI-HARASSMENT CHECKLIST: CLINTON2
08/24/2017123296897Open ↗
02/10/2015122254256Open ↗
▸BISTenant Protection Plan and Notes1
07/13/2017123296897Open ↗
▸Environmental & Asbestos9
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'3
05/01/2008110152575Open ↗
05/01/2008110152593Open ↗
04/30/2008110151718Open ↗
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/18/2026M01366966-I1Open ↗
08/18/2026M01366966-S1Open ↗
08/18/2026M01366966-S2Open ↗
▸BISASBESTOS: CERTIFICATION (DEP ACP5)2
05/29/2018140768293Open ↗
07/13/2017123296897Open ↗
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER1
08/24/2009120134381Open ↗
▸Energy Compliance11
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS5
10/31/2018123296897Open ↗
07/13/2017123296897Open ↗
10/11/2016122784479Open ↗
Showing 3 of 5 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS2
04/01/2020140768293Open ↗
10/31/2018123296897Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY2
04/01/2020140768293Open ↗
05/29/2018140768293Open ↗
▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (FINAL)1
04/01/2020140768293Open ↗
▸BISPTA4: SOLAR TAX ABATEMENT APPLICATION (PRELIMINARY)1
05/29/2018140768293Open ↗
▸Inspections & Test Reports4
▸BISTECHNICAL REPORT: RESPONSIBILITY3
04/01/2020140768293Open ↗
05/29/2018140768293Open ↗
03/29/2017140623519Open ↗
▸BISTECHNICAL REPORT: SOIL INSPECTION1
10/11/2016122784479Open ↗
▸Approvals, Objections & Sign-offs8
▸BISADMINISTRATIVE OBJECTIONS3
08/24/2009120134381Open ↗
05/01/2008110152575Open ↗
05/01/2008110152593Open ↗
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2
04/01/2020140768293Open ↗
10/31/2018123296897Open ↗
▸BISSHED LETTER2
04/09/2018140623519Open ↗
05/08/2010120134381Open ↗
▸BISUtility Company PV System Interconnection Acknowledgement Letter1
04/01/2020140768293Open ↗
▸Cost, Insurance & Ownership10
▸BISCOST AFFIDAVIT10
04/01/2020140768293Open ↗
10/31/2018123296897Open ↗
05/29/2018140768293Open ↗
Showing 3 of 10 on file for this type
▸Filing & Intake Forms14
▸BISEFILING COVER SHEET7
07/13/2017123296897Open ↗
06/14/2016122784479Open ↗
01/30/2015122254256Open ↗
Showing 3 of 7 on file for this type
▸BISADDITIONAL INFORMATION4
08/22/2017123296897Open ↗
03/29/2017140623519Open ↗
08/19/2016122784479Open ↗
Showing 3 of 4 on file for this type
▸BISEFILING JOB APPLICATION COVER SHEET2
05/29/2018140768293Open ↗
03/29/2017140623519Open ↗
▸BISBOROUGH INTAKE FORM1
10/31/2018123296897Open ↗