School or academy

Dalton School

51 EAST 91ST STREET · BIN 1047019

💬 Discuss this project

1910Year Built

5Stories

W3Building Class

R8BZoning

39,279 sfGross Floor Area

1Units

0 Active Violations 1 likely answered 1 old, status unconfirmed ▸

School or academy · Owner of record: Dalton Schools · 10,255 sf lot · 3.83 FAR built · Flood zone X

Locations of Work

StructuralMechanicalEquipmentGeneral

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

RoofThe Dalton School1 filing · 7 docs

Floor 5The Dalton School1 filing · 7 docs

Floor 4The Dalton School1 filing · 7 docs

Floor 3The Dalton School18p · 2 filings · 17 docs

Floor 2The Dalton School18p · 2 filings · 17 docs

Floor 1The Dalton School1 filing · 7 docs

CellarThe Dalton School1 filing · 7 docs

Site & exteriorThe Dalton School8p · 2 filings · 4 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
Dalton Schools	77	03/22/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
Ashraf	2	06/15/2023
Guth Deconzo Consulting Engineers	2	02/04/2022
New York & Company	1	07/13/2021

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
New York & Company	2	03/21/2026
William Vitacco Associates	4	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
C C Controlled Combustion	General Contractor	3	07/08/2026
J & G Construction Services	Scaffold	2	07/08/2026
Air Systems Maintenance I	General Contractor	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
Eti Consultants	7694	2	02/04/2022
New York Engineering Associates	851	1	07/13/2021

Building Lifecycle

All (36)Filed (5)Permit Issued (5)Signed Off (2)Violation (15)Special Inspection (9)

09/25/2023

Violation issued (ECB, closed)

Boilers

06/16/2023

Permit issued — Sidewalk Shed

M00889373-I1-SH

06/16/2023

Permit issued — Supported Scaffold

M00889381-I1-SF

06/15/2023

Filed — Alteration

M00889373-I1

06/15/2023

Filed — 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.

M00889381-I1

08/10/2022

Signed off — Alteration

Mechanical work as shown on plans.

M00258417-I1

07/27/2022

Permit issued — Mechanical Systems

M00258417-I1-MS

02/04/2022

Filed — Alteration

Mechanical work as shown on plans.

M00258417-P1

12/08/2021

Special inspection requirement — Mechanical Systems

ANTHONY MUSUMECI

12/08/2021

Special inspection requirement — Final

ANTHONY MUSUMECI

12/08/2021

Special inspection requirement — Maintenance information

ANTHONY MUSUMECI

12/08/2021

Special inspection requirement — HVAC and service water heating equipment

ANTHONY MUSUMECI

12/08/2021

Special inspection requirement — HVAC insulation and sealing

ANTHONY MUSUMECI

12/08/2021

Special inspection requirement — HVAC and service water heating system controls

ANTHONY MUSUMECI

11/26/2021

Signed off — Alteration

INSTALL CHIMNEY LINER

M00545408-I1

07/21/2021

Permit issued — Mechanical Systems

M00545408-I1-MS

07/14/2021

Permit issued — Mechanical Systems

M00545408-I1-MS

07/13/2021

Filed — Alteration

INSTALL CHIMNEY LINER

M00545408-I1

06/23/2021

Special inspection requirement — Mechanical Systems

LOUIS ARENA

06/23/2021

Special inspection requirement — Chimneys and vents

LOUIS ARENA

06/23/2021

Special inspection requirement — Final

LOUIS ARENA

08/02/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/02/2020

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

04/17/2020

Filed — Alteration

Mechanical work as shown on plans.

M00258417-I1

11/14/2016

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

10/01/2014

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/15/2014

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/11/2011

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

05/07/2010

Violation issued (ECB, closed)

Construction

01/01/2009

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

01/06/2006

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

02/13/2004

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/27/2003

Violation issued (ECB, closed)

Construction

03/19/2003

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/13/2002

Violation issued (ECB, closed)

Boilers

02/14/1994

Violation issued (ECB, closed)

Construction

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Sidewalk Shed	Permit Issued	J & G Construction Services	06/16/2023
DOB NOW	Supported Scaffold	Permit Issued	J & G Construction Services	06/16/2023
DOB NOW	Mechanical Systems	Signed-off	Air Systems Maintenance I	07/27/2022
DOB NOW	Mechanical Systems	Signed-off	C C Controlled Combustion	07/21/2021
DOB NOW	Mechanical Systems	Signed-off	C C Controlled Combustion	07/14/2021
BIS	SP	ISSUED	Abr Plumbing & Heating Contracting	07/17/2014
BIS	MH	ISSUED	Hamilton Air Company	03/28/2014
BIS	MH	ISSUED	Hamilton Air Company	10/25/2013
BIS	SP	ISSUED	Abr Plumbing & Heating Contracting	06/06/2013
BIS	SP	ISSUED	Par Fire Protection	05/30/2013
BIS	PL	ISSUED	Abr Plumbing & Heating Contracting	05/29/2013
BIS	MH	ISSUED	JVS Exteriors	05/22/2013
BIS	OT	ISSUED	JVS Exteriors	05/22/2013
BIS	OT	ISSUED	JVS Exteriors	05/22/2013
BIS	EQ	ISSUED	Tri Borough Scaffolding	05/03/2013
BIS	EQ	ISSUED	Tri Borough Scaffolding	05/01/2013
BIS	PL	ISSUED	Louis L.buttermark & Sons	08/02/2012
BIS	SP	ISSUED	Par Fire Protection	07/13/2012
BIS	OT	ISSUED	Rcdolner	07/10/2012
BIS	OT	ISSUED	Rcdolner	07/10/2012
BIS	OT	ISSUED	Rcdolner	07/10/2012
BIS	MH	ISSUED	Rcdolner	07/10/2012
BIS	OT	ISSUED	Rcdolner	07/10/2012
BIS	EQ	ISSUED	Everest Scaffolding	06/05/2012
BIS	EQ	ISSUED	Everest Scaffolding	06/05/2012
BIS	OT	ISSUED	East Coast Restoration	05/14/2012
BIS	—	ISSUED	Rcdolner	03/22/2012
BIS	MH	ISSUED	Rcdolner	03/19/2012
BIS	SP	ISSUED	Par Fire Protection	10/06/2011
BIS	FP	ISSUED	Chief Fire Prev. & Mechanical Co	09/07/2011
BIS	OT	ISSUED	All-Safe	06/28/2011
BIS	PL	ISSUED	Louis L.buttermark & Sons	05/11/2011
BIS	SP	ISSUED	Louis L.buttermark & Sons	04/20/2011
BIS	MH	ISSUED	Rcdolner	03/30/2011
BIS	—	ISSUED	Rcdolner	03/24/2011
BIS	EQ	ISSUED	Rcdolner	02/24/2011
BIS	EQ	ISSUED	Mid-State Construction	10/25/2010
BIS	BL	ISSUED	Metropolitan Heat & Power Co	08/06/2010
BIS	EQ	ISSUED	Atlantic Hoisting & Scaffol	07/07/2010
BIS	EQ	ISSUED	Atlantic Hoisting & Scaffol	03/30/2010

+ 12 more permits on file

1 project · most recent 06/13/2023

Filed	Status	Contractor	Scope
06/13/2023	Permit Issued	Richard Neu	—

1 project · most recent 06/15/2023

Scaffold

Filed	Status	Contractor	Scope
06/15/2023	Permit Issued	J & G Construction Services	Scaffold

▾Special Inspection Requirements (DOB NOW) — 9

Date	Requirement	Inspector	Role
12/08/2021	Mechanical Systems	ANTHONY MUSUMECI	special
12/08/2021	Final	ANTHONY MUSUMECI	progress
12/08/2021	Maintenance information	ANTHONY MUSUMECI	energy_progress
12/08/2021	HVAC and service water heating equipment	ANTHONY MUSUMECI	energy_progress
12/08/2021	HVAC insulation and sealing	ANTHONY MUSUMECI	energy_progress
12/08/2021	HVAC and service water heating system controls	ANTHONY MUSUMECI	energy_progress
06/23/2021	Mechanical Systems	LOUIS ARENA	special
06/23/2021	Chimneys and vents	LOUIS ARENA	special
06/23/2021	Final	LOUIS ARENA	progress

▾Tenants in the building

Tenant	Space	Floors	Renovation projects
The Dalton School	Education	Entire building	Project M00889373 Alteration · Permit Entire · 06/15/2023 Project M00889381 Alteration · Permit Entire · 06/15/2023 Project M00545408 Alteration · LOC Issued · 07/13/2021 Project M00258417 Alteration · LOC Issued · 04/17/2020

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 — 637 on file (BIS + DOB NOW)

▸Plans & Drawings5

▸DOB NOWPlans/Sketch3

09/03/2026M00545408-I1Request digital key ↗

08/30/2026M00889373-I1Request digital key ↗

08/30/2026M00889381-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Mechanical Systems2

09/02/2026M00258417-I1Request digital key ↗

08/15/2026M00258417-P1Request digital key ↗

▸Applications & Permits113

▸BISPLAN / WORK APPROVAL APPLICATION61

03/23/2016120059676Open ↗

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▸BISWORK PERMIT APPLICATION40

07/24/2014121096287Open ↗

04/03/2014120978479Open ↗

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▸BISPLACE OF ASSEMBLY4

03/23/2016121045154Open ↗

03/28/2014121045154Open ↗

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▸DOB NOWLPC Approval/Permit3

08/13/2026M00258417-P1Open ↗

08/13/2026M00258417-I1Open ↗

08/13/2026M00545408-I1Open ↗

▸BISCERTIFICATE OF OCCUPANCY: APPLICATION2

04/23/2013120059676Open ↗

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▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2

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▸BISPLACE OF ASSEMBLY APPLICATION1

02/07/2014121045154Open ↗

▸Seals & Professional Certifications145

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION93

01/09/2015120059676Open ↗

08/13/2014121082247Open ↗

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▸BISPROFESSIONAL CERTIFIED CHECKLIST16

10/30/2013121809748Open ↗

06/07/2012121103947Open ↗

06/07/2012121103938Open ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM16

06/07/2012121103947Open ↗

06/07/2012121103938Open ↗

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▸DOB NOWProgress Inspector Seal & Signature6

08/27/2026M00258417-P1Open ↗

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▸DOB NOWDPL-1: Design Professional Seal & Signature5

09/02/2026M00258417-I1Open ↗

09/02/2026M00258417-P1Open ↗

08/30/2026M00889373-I1Open ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT3

10/30/2013121809748Open ↗

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

▸DOB NOWSpecial Inspector Seal & Signature2

08/24/2026M00545408-I1Open ↗

▸Trade Schedules & Equipment62

▸BISSELF-CERT PLUMBING NOTICE18

07/28/2014121096287Open ↗

08/19/2013121082247Open ↗

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▸BISSCHEDULE B - PLUMBING17

06/12/2013121082247Open ↗

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▸BISEQUIPMENT USE PERMITS11

10/11/2016120059676Open ↗

07/08/2014120978479Open ↗

04/17/2014120630022Open ↗

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▸BISFA - FDNY APPROVAL : FD-FAA8

07/25/2016121096278Open ↗

03/02/2016121096278Open ↗

09/04/2013120630022Open ↗

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▸BISSPRINKLER INSP REPORT : FP-854

07/28/2014121096287Open ↗

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▸BISEQUIPMENT USE APPLICATION-PERMIT2

07/08/2014120978479Open ↗

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▸BISFIRE PROTECTION PLAN(FPP): FDNY APPROVAL1

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▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT1

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▸Safety & Tenant Protection2

▸BISST-1 Street Tree Checklist2

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▸Environmental & Asbestos25

▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'10

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

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▸BISASBESTOS EXEMPTION CERTIFICATION LETTER7

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▸BISASBESTOS: CERTIFICATION (DEP ACP5)5

10/30/2013121809748Open ↗

07/09/2012121082247Open ↗

06/07/2012121103947Open ↗

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▸DOB NOWDEP ACP-5: Asbestos Assessment Report3

09/02/2026M00258417-P1Open ↗

09/02/2026M00258417-I1Open ↗

08/13/2026M00545408-I1Open ↗

▸Energy Compliance21

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS13

08/13/2014121082247Open ↗

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▸BISTECHNICAL REPORT: ENERGY3

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▸BISAS-BUILT ENERGY ANALYSIS3

08/13/2014121082247Open ↗

07/08/2014120978479Open ↗

02/25/2014121809748Open ↗

▸BISTR8: Energy Code Progress Inspections1

06/23/2014120630022Open ↗

▸BISELECTRICAL APPLICATION FOR SIDEWALK SHED LIGHTING1

05/01/2013140075059Open ↗

▸Inspections & Test Reports11

▸BISConcrete Test Cylinders - 2008 CODE4

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

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▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER3

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▸BISTECHNICAL REPORT: RESPONSIBILITY2

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX2

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

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▸Approvals, Objections & Sign-offs116

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST41

10/11/2016120059676Open ↗

07/25/2016121096278Open ↗

06/22/2016120059676Open ↗

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▸BISADMINISTRATIVE OBJECTIONS23

06/07/2012121103947Open ↗

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▸BISLANDMARKS APPROVAL21

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▸BISLETTERS - SUPPORTING DOCUMENTATION13

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03/23/2016121045154Open ↗

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▸BISSCHEDULE A - OCCUPANCY / USE11

08/28/2015120059676Open ↗

04/03/2014120059676Open ↗

07/18/2012120059676Open ↗

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▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter5

09/02/2026M00258417-I1Open ↗

09/02/2026M00258417-P1Open ↗

08/13/2026M00889373-I1Open ↗

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▸BISLETTERS - APPROVED FABRICATION CERTIFICATIONS1

04/01/2013121071927Open ↗

▸BISCONSTRUCTION CODE DETERMINATION1

02/19/2014120059676Open ↗

▸Cost, Insurance & Ownership43

▸BISCOST AFFIDAVIT38

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07/25/2016121096278Open ↗

08/13/2014121082247Open ↗

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▸BISPROJECT-SPECIFIC GL INSURANCE3

05/23/2013121082247Open ↗

07/12/2012121082247Open ↗

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▸BISPROJECT SPECIFIC GENERAL LIABILITY INSURANCE (PGLI)2

05/23/2013121082247Open ↗

▸Filing & Intake Forms70

▸BISADDITIONAL INFORMATION37

04/04/2014120059676Open ↗

07/16/2013121082247Open ↗

09/12/2012120630022Open ↗

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▸BISEFILING COVER SHEET30

10/30/2013121809748Open ↗

06/07/2012121103947Open ↗

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▸BISEFILING JOB APPLICATION COVER SHEET3

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

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▸Other Documents20

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION9

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▸BISOP-129 INTERNAL (SECONDARY) BACKFLOW PREVENTION DEVICE TEST REPORT2

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▸BISRESTRICTION: DEED2

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▸BISFEE EXEMPTION DOCUMENTATION2

05/02/2013140075852Open ↗

05/01/2013140075059Open ↗

▸BISPLOT DIAGRAM2

03/23/2016120059676Open ↗

▸BISSupporting Document: Fee Exempt1

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▸BISCOMMUNITY BOARD NOTIFICATION1

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▸BISFIRE SUPP ANSUL APPROVL- FD-FSS1

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