MANHATTAN

301 EAST 50TH STREET

MANHATTAN · BIN 1085119

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—Year Built

—Stories

—Building Class

—Zoning

—Gross Floor Area

—Units

0 Active ViolationsFISP: SAFEFDNY Report ↗

Flood zone X

Locations of Work

ArchitectureStructuralElectricalMechanicalPlumbingGeneral

Names shown beside floors are taken automatically from the text of filed documents and may be incomplete or wrong.

RoofThe East 50th Street Condominium1 filing · 5 docs

Floor 51p · 1 filing · 2 docs

Floor 4

Floor 3

Floor 2301 E 50th Street Corp.3p · 1 filing · 2 docs

Floor 16p · 3 filings · 6 docs

Site & exterior3p · 2 filings · 5 docs

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
303 Development Partners	53	03/22/2026
Mus1	31	03/21/2026
Ascot Properties	29	03/21/2026
950 Second Avenue LLCC Othe Kle	12	03/21/2026
CM Associates Construction Management	11	07/08/2026
Musi	6	03/21/2026
Second and 50	4	03/21/2026
CB Developers	2	03/22/2026
Issembert Companies	2	03/21/2026
Orsid Realty	1	10/04/2026
950 Second Ave	1	03/22/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
Howard L Zimmerman Arch & Engineering	2	09/29/2026
Paul Perdek, Prof. Engineering	2	01/20/2021
Mirella Boselli Architect	3	10/08/2019
Joel Phagoo P.E	1	09/23/2019

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
Howard L Zimmerman Architects	2	03/21/2026
Richard Lewis Architect	3	03/21/2026
A1 Expediting Service	6	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
Colgate Enterprise	Scaffold	6	07/08/2026
Rockledge Scaffold	Scaffold	2	03/21/2026
Optimal Electric	Electrical	2	03/21/2026
Astra Electric	Electrical	1	03/21/2026
Glendale Electl Contng	Electrical	1	03/21/2026
Tuxedo Electrical Contracting	Electrical	1	03/22/2026
Glendale Electl Contng	Electrical	1	03/22/2026
Demar Mechanical	Plumbing	1	07/08/2026
Gsa Electric	Electrical	1	03/22/2026
Illuminations Unlmtd Electric	Electrical	1	03/22/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
Howard L Zimmerman Architects	1712	2	09/29/2026

Building Lifecycle

All (102)Filed (8)Permit Issued (6)Signed Off (4)Facade (FISP) (3)Violation (60)Inspection (1)Objection (14)Special Inspection (6)

09/29/2026

Filed — Alteration

Replacement of rooftop condenser units as per plans. No change in use, egress or occupancy.

M01458237-I1

09/10/2026

Special inspection requirement — Mechanical Systems

Jon Colatrella

09/10/2026

Special inspection requirement — Tenant Protection Plan Compliance

Jon Colatrella

09/10/2026

Special inspection requirement — Energy Code Compliance Inspections

Jon Colatrella

09/10/2026

Special inspection requirement — Final

Jon Colatrella

09/10/2026

Special inspection requirement — HVAC-R and service water heating equipment

Jon Colatrella

09/10/2026

Special inspection requirement — Maintenance information

Jon Colatrella

11/21/2025

Signed off — Alteration

Replacement of hot water heater for low zone. No change in use, egress or occupancy.

M01196770-I1

10/09/2025

Inspection — Pass-Final PL - Up to 3 Requested Floors

Pass

View inspection ↗

06/30/2025

Permit issued — Plumbing

M01196770-I1-PL

03/19/2025

Filed — Alteration

Replacement of hot water heater for low zone. No change in use, egress or occupancy.

M01196770-I1

06/23/2024

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

03/07/2024

Violation issued (FDNY_NOV, closed)

06/26/2023

Signed off — Alteration

M00447633-I1

06/26/2023

Signed off — Alteration

M00453671-I1

06/15/2023

Violation issued (FDNY_NOV, closed)

12/06/2022

Violation issued (FDNY_NOV, closed)

05/16/2022

Cycle 9 facade report signed — SAFE

04/09/2022

Cycle 9 facade report submitted

03/30/2022

Cycle 9 facade inspection completed

01/30/2022

Violation issued (FDNY_NOV, closed)

01/12/2022

Permit issued — Protection and Mechanical Methods

M00453671-I1-PM

01/07/2022

Permit issued — Sidewalk Shed

M00447633-I1-SH

11/12/2021

Violation issued (FDNY_NOV, closed)

05/28/2021

Violation issued (FDNY_NOV, closed)

04/18/2021

Violation issued (FDNY_NOV, closed)

01/21/2021

Permit issued — Protection and Mechanical Methods

M00453671-I1-PM

01/20/2021

Filed — Alteration

M00453671-I1

01/12/2021

Permit issued — Sidewalk Shed

M00447633-I1-SH

01/08/2021

Filed — Alteration

M00447633-I1

05/12/2020

Violation issued (ECB, closed)

Unknown

05/11/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/11/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/11/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

01/16/2020

Signed off — Alteration

M00233229-I1

10/08/2019

Filed — No Work

M00225739-I1

09/25/2019

Permit issued — Sidewalk Shed

M00233229-I1-SH

09/23/2019

Filed — Alteration

M00233229-I1

03/26/2019

Objection raised — Mechanical

03/26/2019

Objection resolved — Addressed

03/26/2019

Objection raised — Mechanical

03/26/2019

Objection resolved — Addressed

03/22/2019

Objection raised — Fire_Protection

03/22/2019

Objection resolved — Addressed

03/22/2019

Objection raised — Admin

03/22/2019

Objection resolved — Addressed

03/22/2019

Objection raised — Scope

03/22/2019

Objection resolved — Addressed

03/22/2019

Objection raised — Fire_Protection

03/22/2019

Objection resolved — Addressed

03/22/2019

Objection raised — Inspections

03/22/2019

Objection resolved — Addressed

03/19/2019

Filed — No Work

M00143212-I1

03/19/2019

Filed — No Work

M00141335-I1

10/02/2018

Violation issued (FDNY_NOV, closed)

05/19/2018

Violation issued (HPD, closed)

05/02/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/02/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/02/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

04/06/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

Latest 60 of 102 events.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Plumbing	Signed-off	Demar Mechanical	06/30/2025
DOB NOW	Protection and Mechanical Methods	Signed-off	Colgate Enterprise	01/12/2022
DOB NOW	Sidewalk Shed	Signed-off	Colgate Enterprise	01/07/2022
DOB NOW	Protection and Mechanical Methods	Signed-off	Colgate Enterprise	01/21/2021
DOB NOW	Sidewalk Shed	Signed-off	Colgate Enterprise	01/12/2021
DOB NOW	Sidewalk Shed	Signed-off	Rockledge Scaffold	09/25/2019
BIS	FP	ISSUED	William Hird & Co	10/27/2017
BIS	FP	ISSUED	William Hird & Co	08/25/2017
BIS	OT	ISSUED	Aerial Design Build Services	08/07/2017
BIS	MH	ISSUED	Aerial Design Build Services	08/07/2017
BIS	—	ISSUED	CM and Associates Construction	03/30/2017
BIS	SP	ISSUED	Aqueduct Mechanical	02/24/2017
BIS	PL	ISSUED	Aqueduct Mechanical	02/24/2017
BIS	MH	ISSUED	Aerial Design Build Services	02/22/2017
BIS	OT	ISSUED	Aerial Design Build Services	02/22/2017
BIS	PL	ISSUED	G.N.T. Mechanical	10/13/2016
BIS	—	ISSUED	CM and Associates Construction	06/20/2016
BIS	EQ	ISSUED	CM and Associates Construction	06/20/2016
BIS	—	ISSUED	Interboro Sign & Electric Maintenance	05/04/2016
BIS	SP	ISSUED	K.G. Mechanical	04/13/2016
BIS	PL	ISSUED	L.L.G. Plumbing & Heating	04/06/2016
BIS	—	ISSUED	CM and Associates Construction	03/21/2016
BIS	MH	ISSUED	Troy Home Improvement	03/18/2016
BIS	EQ	ISSUED	Troy Home Improvement	03/18/2016
BIS	OT	ISSUED	Troy Home Improvement	03/18/2016
BIS	EQ	ISSUED	Rockledge Scaffold	12/30/2015
BIS	EQ	ISSUED	Rockledge Scaffold	12/30/2015
BIS	—	ISSUED	CM and Associates Construction	12/09/2015
BIS	SD	ISSUED	G.N.T. Mechanical	08/28/2015
BIS	PL	ISSUED	G.N.T. Mechanical	08/28/2015
BIS	EQ	ISSUED	Everest Scaffolding	08/28/2015
BIS	SP	ISSUED	G.N.T. Mechanical	08/03/2015
BIS	EQ	ISSUED	CM and Associates Construction	06/17/2015
BIS	BL	ISSUED	G.N.T. Mechanical	03/02/2015
BIS	EQ	ISSUED	Rockledge Scaffold	01/26/2015
BIS	EQ	ISSUED	Rockledge Scaffold	01/21/2015
BIS	—	ISSUED	CM and Associates Construction	12/19/2014
BIS	SD	ISSUED	G.N.T. Mechanical	09/02/2014
BIS	PL	ISSUED	G.N.T. Mechanical	09/02/2014
BIS	SD	ISSUED	G.N.T. Mechanical	08/04/2014

+ 16 more permits on file

1 project · most recent 09/29/2026

Heating and Air Conditioning Systems

Filed	Status	Contractor	Scope	Make / Model / Capacity
09/29/2026	—	—	Heating and Air Conditioning Systems	Heat / Cool Mitsubishi Electric TURYE 1203AN41AN 135,000 BTU · Condensing Unit ×15

14 projects · most recent 06/08/2025

General Wiring Lighting

Filed	Status	Contractor	Scope
06/08/2025	Complete	Astra Electric	General Wiring
11/12/2024	Complete	Optimal Electric	General Wiring
06/17/2024	Complete	Glendale Electl Contng	General Wiring
09/01/2023	Complete	Optimal Electric	General Wiring
04/15/2021	Complete	Asko Electric Construction & Maintenance	General Wiring
04/07/2021	Complete	Asko Electric Construction & Maintenance	General Wiring
01/08/2021	Complete	Nash Electric Services	—
10/18/2020	Complete	Tuxedo Electrical Contracting	—
10/11/2019	Cancelled	MLS Electric	General Wiring
09/20/2019	Complete	Anthony G Ferry	—
08/13/2019	Complete	Gsa Electric	General Wiring
05/29/2019	Pending Payment	JLC Electrical Contracting	General Wiring
01/30/2018	Complete	Illuminations Unlmtd Electric	Lighting
01/29/2018	Complete	Lion Electric	General Wiring

▾Field Inspections (DOB CAP) — 1

Date	Type	Result	Report
10/09/2025	Pass-Final PL - Up to 3 Requested Floors	Pass	View ↗

▾Special Inspection Requirements (DOB NOW) — 6

Date	Requirement	Inspector	Role
09/10/2026	Mechanical Systems	Jon Colatrella	special
09/10/2026	Tenant Protection Plan Compliance	Jon Colatrella	special
09/10/2026	Energy Code Compliance Inspections	Jon Colatrella	progress
09/10/2026	Final	Jon Colatrella	progress
09/10/2026	HVAC-R and service water heating equipment	Jon Colatrella	energy_progress
09/10/2026	Maintenance information	Jon Colatrella	energy_progress

▾Documents — 781 on file (BIS + DOB NOW)

▸Plans & Drawings8

▸DOB NOWPlans/Sketch - Sidewalk Shed2

09/05/2026M00233229-I1Request digital key ↗

09/04/2026M00447633-I1Request digital key ↗

▸DOB NOWPlans/Sketch2

10/04/2026M01458237-I1Request digital key ↗

08/24/2026M01196770-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Temporary Place of Assembly2

09/05/2026M00141335-I1Request digital key ↗

09/05/2026M00225739-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Protection of Mechanical Methods1

09/04/2026M00453671-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Place of Assembly1

09/05/2026M00143212-I1Request digital key ↗

▸Applications & Permits191

▸BISWORK PERMIT APPLICATION96

08/15/2019123883896Open ↗

10/27/2017123182803Open ↗

08/28/2017123103676Open ↗

Showing 3 of 96 on file for this type

▸BISPLAN / WORK APPROVAL APPLICATION92

07/15/2025121325547Open ↗

07/11/2025121325547Open ↗

07/03/2025121325547Open ↗

Showing 3 of 92 on file for this type

▸BISBPP-5 - Authorization to the Department of Transportation3

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 3 on file for this type

▸Zoning, Tax Lot & Property Records5

▸BISZoning Diagram (ZD1)4

On file, but not among the 200 most recently loaded documents for this source.

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▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸Seals & Professional Certifications158

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION96

01/28/2020140471807Open ↗

01/08/2020123883896Open ↗

Showing 3 of 96 on file for this type

▸BISPROFESSIONAL CERTIFIED CHECKLIST19

08/05/2019123883896Open ↗

01/26/2017123011472Open ↗

Showing 3 of 19 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM11

On file, but not among the 200 most recently loaded documents for this source.

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▸BISPROFESSIONAL CERTIFICATION STATEMENT10

08/05/2019123883896Open ↗

01/26/2017123011472Open ↗

Showing 3 of 10 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature8

10/04/2026M01458237-I1Open ↗

09/05/2026M00141335-I1Open ↗

09/05/2026M00233229-I1Open ↗

Showing 3 of 8 on file for this type

▸BISPC FULL REPORT4

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 4 on file for this type

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION3

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 3 on file for this type

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY3

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 3 on file for this type

▸DOB NOWProgress Inspector Seal & Signature2

10/05/2026M01458237-I1Open ↗

▸BISAPPLICANT OWNER SIGNATURE1

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

10/05/2026M01458237-I1Open ↗

▸Trade Schedules & Equipment64

▸BISSCHEDULE B - PLUMBING18

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 18 on file for this type

▸BISSELF-CERT PLUMBING NOTICE16

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 16 on file for this type

▸BISEQUIPMENT USE APPLICATION/PERMIT14

01/28/2020140471807Open ↗

10/12/2018123011472Open ↗

Showing 3 of 14 on file for this type

▸BISFA - FDNY APPROVAL : FD-FAA4

05/03/2019122572206Open ↗

08/08/2018123299171Open ↗

05/16/2017121787799Open ↗

Showing 3 of 4 on file for this type

▸BISEQUIPMENT USE PERMITS3

01/28/2020140471807Open ↗

10/12/2018123011472Open ↗

Showing 2 of 3 on file for this type

▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT2

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 2 on file for this type

▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT2

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 2 on file for this type

▸BISGAS CUT-OFF2

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 2 on file for this type

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2

08/28/2017123011472Open ↗

01/26/2017123011472Open ↗

▸BISSEWER CONNECTION: DEP SD1 & SD21

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 1 on file for this type

▸Safety & Tenant Protection16

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE7

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 7 on file for this type

▸BISTenant Protection Plan and Notes5

08/05/2019123883896Open ↗

09/25/2017123182803Open ↗

06/13/2017123103676Open ↗

Showing 3 of 5 on file for this type

▸BISST-1 Street Tree Checklist3

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 3 on file for this type

▸DOB NOWTenant Protection Plan1

08/13/2026M00233229-I1Open ↗

▸Environmental & Asbestos21

▸BISASBESTOS EXEMPTION CERTIFICATION LETTER16

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 16 on file for this type

▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'5

On file, but not among the 200 most recently loaded documents for this source.

Showing 0 of 5 on file for this type

▸Energy Compliance25

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS15

08/05/2019123883896Open ↗

09/29/2017123011472Open ↗

01/26/2017123011472Open ↗

Showing 3 of 15 on file for this type

▸BISAS-BUILT ENERGY ANALYSIS4

01/28/2020140471807Open ↗

01/08/2020123883896Open ↗

10/16/2018123011472Open ↗

Showing 3 of 4 on file for this type

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS2

On file, but not among the 200 most recently loaded documents for this source.

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▸BISNYCECC ANALYSIS2

On file, but not among the 200 most recently loaded documents for this source.

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▸BISTR8: Energy Code Progress Inspections2

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▸Inspections & Test Reports13

▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER6

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▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX4

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▸BISTECHNICAL REPORT: RESPONSIBILITY3

06/29/2018121325547Open ↗

Showing 1 of 3 on file for this type

▸Approvals, Objections & Sign-offs101

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST52

02/05/2021121325547Open ↗

11/16/2020121325547Open ↗

08/11/2020121325547Open ↗

Showing 3 of 52 on file for this type

▸BISADMINISTRATIVE OBJECTIONS19

On file, but not among the 200 most recently loaded documents for this source.

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▸BISLETTERS - SUPPORTING DOCUMENTATION12

05/15/2017122719941Open ↗

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▸BISSCHEDULE A - OCCUPANCY / USE11

11/30/2018121325547Open ↗

06/15/2018121325547Open ↗

12/20/2016121325547Open ↗

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▸BISSUPERSEDING LETTER4

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▸BISLETTERS - APPROVED FABRICATION CERTIFICATIONS2

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▸BISCONSTRUCTION CODE DETERMINATION1

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▸Cost, Insurance & Ownership39

▸BISCOST AFFIDAVIT29

03/06/2020122572206Open ↗

01/28/2020140471807Open ↗

01/08/2020123883896Open ↗

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▸BISPROJECT-SPECIFIC GL INSURANCE5

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▸BISAcord 25 (Acord Certificate of Liability Insurance)3

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▸BISPROJECT SPECIFIC GENERAL LIABILITY INSURANCE (PGLI)2

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▸Filing & Intake Forms94

▸BISADDITIONAL INFORMATION33

08/05/2019123883896Open ↗

12/17/2018121325547Open ↗

11/01/2017123011472Open ↗

Showing 3 of 33 on file for this type

▸BISBOROUGH INTAKE FORM26

03/06/2020122572206Open ↗

03/02/2020121325547Open ↗

01/28/2020140471807Open ↗

Showing 3 of 26 on file for this type

▸BISEFILING COVER SHEET25

08/05/2019123883896Open ↗

09/25/2017123182803Open ↗

08/08/2017123299171Open ↗

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▸BISeFiling Job Application Cover Sheet9

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▸BISSRO INTAKE FORM(SRO1)1

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▸Other Documents14

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION9

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▸BISBPP - SUPPORTING DOCUMENTATION2

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▸BISSITE CONNECTION: DEP2

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▸BISSAFETY MONITORING PLAN1

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