Locations of Work

MechanicalPlumbingFire Protection

Roof9p · 1 filing · 12 docs

Floor 314p · 2 filings · 20 docs

Floor 215p · 2 filings · 20 docs

Floor 114p · 2 filings · 20 docs

Cellar18p · 2 filings · 20 docs

Sub-Basement14p · 2 filings · 20 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
09 HOME 21	7	03/22/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
06/27/2019	$11.8M	—	Private party → 09HOME21 LLC	$3,193/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
RJD ENGINEERING LLC	5	07/06/2021

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
GREEN LIGHT EXPEDITING LLC	10	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
WARREN OSTROFF	Electrical	10	03/21/2026
KG SPRINKLER CORP	Fire Protection	2	07/08/2026
ARCON PLBG SOLUTIONS	Plumbing	2	07/08/2026
WARREN OSTROFF ELEC., INC	Electrical	1	03/22/2026
D REIS CONTRACTING CORP	General Contractor	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
ALAN MARGOLIN & ASSOC	423	5	07/06/2021

Building Lifecycle

All (35)Filed (5)Permit Issued (5)Objection (18)Special Inspection (7)

07/06/2021

Filed — Alteration

PERFORM PLUMBING MODIFICATION & INSTALL NEW SPRINKLER SYSTEM INCONJUNCTION WITH BUILDING CONVERSION FROM TWO TO SINGLE FAMILY RESIDENCE. INSTALL 54 SPRINKLER HEADS. MECHANICAL WORK TO FILED UNDER DOB NOW:BUILD.USE CHANGE APPROVED UNDER ALT I#123699097.

M00342625-P2

07/01/2021

Special inspection requirement — Fire-Resistance Rated Construction

Young Suh

07/01/2021

Special inspection requirement — Fire-Resistant Penetrations and Joints

Young Suh

07/01/2021

Special inspection requirement — Sprinkler Systems

Young Suh

04/19/2021

Permit issued — Plumbing

M00342625-I1-PL

04/07/2021

Special inspection requirement — Mechanical Systems

Young Suh

04/07/2021

Special inspection requirement — Final

Young Suh

03/25/2021

Filed — Alteration

PERFORM PLUMBING MODIFICATION & INSTALL NEW SPRINKLER SYSTEM INCONJUNCTION WITH BUILDING CONVERSION FROM TWO TO SINGLE FAMILY RESIDENCE. INSTALL 54 SPRINKLER HEADS. MECHANICAL WORK TO FILED UNDER DOB NOW:BUILD.USE CHANGE APPROVED UNDER ALT I#123699097.

M00342625-P1

03/25/2021

Filed — Alteration

PERFORM MECHANICAL WORK INCONJUNCTION WITH CONVERSION FROM TWO TO SINGLE FAMILY RESIDENCE.INSTALL NEW SPLIT COOLING & HEATING SYSTEM WI/ ASSOCIATED DUCTS & PIPING THOUGHOUT.NEW BATHROOM EXHAUST ON BAS, 2ND & 3RD FLS.REPLACE ROOF CONDENSORS&NEW EXHAUST FAN

M00342766-P1

02/26/2021

Special inspection requirement — Mechanical Systems

Young Suh

02/26/2021

Special inspection requirement — Final

Young Suh

09/23/2020

Permit issued — Plumbing

M00342625-I1-EW-SP

08/09/2020

Permit issued — Mechanical Systems

M00342766-I1-MS

07/09/2020

Permit issued — Plumbing

M00342625-I1-PL

07/09/2020

Permit issued — Plumbing

M00342625-I1-EW-SP

06/02/2020

Objection raised — Inspections

06/02/2020

Objection resolved — Addressed

06/02/2020

Objection raised — Energy

06/02/2020

Objection resolved — Addressed

06/02/2020

Objection raised — Scope

06/02/2020

Objection resolved — Addressed

06/02/2020

Objection raised — Scope

06/02/2020

Objection resolved — Addressed

06/02/2020

Objection raised — Scope

06/02/2020

Objection resolved — Addressed

05/06/2020

Filed — Alteration

PERFORM MECHANICAL WORK INCONJUNCTION WITH CONVERSION FROM TWO TO SINGLE FAMILY RESIDENCE.INSTALL NEW SPLIT COOLING & HEATING SYSTEM WI/ ASSOCIATED DUCTS & PIPING THOUGHOUT.NEW BATHROOM EXHAUST ON BAS, 2ND & 3RD FLS.REPLACE ROOF CONDENSORS&NEW EXHAUST FAN

M00342766-I1

05/04/2020

Objection raised — Scope

05/04/2020

Objection resolved — Addressed

05/04/2020

Objection raised — Inspections

05/04/2020

Objection resolved — Addressed

05/04/2020

Objection raised — Admin

05/04/2020

Objection resolved — Addressed

05/04/2020

Objection raised — Inspections

05/04/2020

Objection resolved — Addressed

05/01/2020

Filed — Alteration

PERFORM PLUMBING MODIFICATION & INSTALL NEW SPRINKLER SYSTEM INCONJUNCTION WITH BUILDING CONVERSION FROM TWO TO SINGLE FAMILY RESIDENCE. INSTALL 54 SPRINKLER HEADS. MECHANICAL WORK TO FILED UNDER DOB NOW:BUILD.USE CHANGE APPROVED UNDER ALT I#123699097.

M00342625-I1

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Plumbing	Signed-off	ARCON PLBG SOLUTIONS	04/19/2021
DOB NOW	Plumbing	Signed-off	H M SPRINKLER INC	09/23/2020
DOB NOW	Mechanical Systems	Permit Issued	D REIS CONTRACTING CORP	08/09/2020
DOB NOW	Plumbing	Signed-off	ARCON PLBG SOLUTIONS	07/09/2020
DOB NOW	Plumbing	Signed-off	H M SPRINKLER INC	07/09/2020
BIS	—	ISSUED	D REIS CONTRACTING CORP	12/18/2020
BIS	—	ISSUED	D REIS CONTRACTING CORP	03/17/2020
BIS	OT	ISSUED	STRUCTURAL CONSULTANTS INC	08/05/2008
BIS	PL	ISSUED	PP COUSIN INC	12/05/2001
BIS	OT	ISSUED	STRUCTURAL CONSUL ICN	11/14/2001

1 project · most recent 03/25/2021

Air Conditioning Systems Associated Ducts and Piping Ventilation Systems

Filed	Status	Contractor	Scope	Make / Model / Capacity
03/25/2021	Permit Issued	D REIS CONTRACTING CORP	Air Conditioning Systems, Associated Ducts and Piping, Ventilation Systems	Cooling Carrier 24ACB736A003 36,800 BTU · Condensing Unit ×4 FV4CNB002 3 tons · Ahu ×4

1 project · most recent 07/06/2021

Filed	Status	Contractor	Scope
07/06/2021	Signed-off	KG SPRINKLER CORP	54 heads

1 project · most recent 07/06/2021

Gas Water/Sanitary

Filed	Status	Contractor	Scope
07/06/2021	Signed-off	DONATO PLUMBING, INC	Gas, Water/Sanitary

2 projects · most recent 04/19/2022

General Wiring

Filed	Status	Contractor	Scope
04/19/2022	Complete	WARREN OSTROFF ELEC., INC	General Wiring
06/10/2020	Complete	WARREN OSTROFF ELEC., INC	—

▾Special Inspection Requirements (DOB NOW) — 7

Date	Requirement	Inspector	Role
07/01/2021	Fire-Resistance Rated Construction	Young Suh	progress
07/01/2021	Fire-Resistant Penetrations and Joints	Young Suh	special
07/01/2021	Sprinkler Systems	Young Suh	special
04/07/2021	Mechanical Systems	Young Suh	special
04/07/2021	Final	Young Suh	progress
02/26/2021	Mechanical Systems	Young Suh	special
02/26/2021	Final	Young Suh	progress

▾Documents — 88 on file (BIS + DOB NOW)

▸Plans & Drawings8

▸DOB NOWPlans/Sketch - Sprinkler3

09/05/2026M00342625-P1Request digital key ↗

09/05/2026M00342625-P2Request digital key ↗

08/15/2026M00342625-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Plumbing3

09/05/2026M00342625-P2Request digital key ↗

09/05/2026M00342625-P1Request digital key ↗

08/15/2026M00342625-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Mechanical Systems2

09/04/2026M00342766-P1Request digital key ↗

08/14/2026M00342766-I1Request digital key ↗

▸Applications & Permits19

▸BISPLAN / WORK APPROVAL APPLICATION10

02/05/2021123699097Open ↗

01/29/2021123699097Open ↗

03/11/2020123699097Open ↗

Showing 3 of 10 on file for this type

▸DOB NOWLPC Approval/Permit5

09/05/2026M00342625-P2Open ↗

09/05/2026M00342625-P1Open ↗

08/15/2026M00342625-I1Open ↗

Showing 3 of 5 on file for this type

▸BISWORK PERMIT APPLICATION3

03/18/2020123699097Open ↗

08/05/2008110185308Open ↗

▸BISPARTIAL DEMO PLAN & DS1 (FOR AL/EW-OT PERMITS)1

02/10/2021123699097Open ↗

▸Seals & Professional Certifications18

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION6

03/10/2020123699097Open ↗

01/21/2020123699097Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature5

09/05/2026M00342625-I1Open ↗

09/05/2026M00342625-P2Open ↗

09/05/2026M00342625-P1Open ↗

Showing 3 of 5 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature4

08/31/2026M00342625-P2Open ↗

08/25/2026M00342766-P1Open ↗

Showing 3 of 4 on file for this type

▸DOB NOWProgress Inspector Seal & Signature3

08/31/2026M00342625-P2Open ↗

08/25/2026M00342766-P1Open ↗

08/24/2026M00342766-I1Open ↗

▸Trade Schedules & Equipment4

▸DOB NOWFDNY: Letter of No Objection3

09/05/2026M00342625-P2Open ↗

09/05/2026M00342625-P1Open ↗

08/15/2026M00342625-I1Open ↗

▸BISSCHEDULE B - PLUMBING1

02/03/2011120593358Open ↗

▸Safety & Tenant Protection2

▸BISSTREET TREE CHECKLIST1

01/21/2020123699097Open ↗

▸BISTenant Protection Plan and Notes1

01/21/2020123699097Open ↗

▸Environmental & Asbestos11

▸DOB NOWDEP ACP-5: Asbestos Assessment Report5

09/05/2026M00342625-P2Open ↗

09/05/2026M00342625-P1Open ↗

09/04/2026M00342766-P1Open ↗

Showing 3 of 5 on file for this type

▸BISASBESTOS EXEMPTION CERTIFICATION LETTER2

02/03/2011120593358Open ↗

06/02/2008110185308Open ↗

▸BISASBESTOS: CERTIFICATION (DEP ACP5)2

01/29/2021123699097Open ↗

01/21/2020123699097Open ↗

▸BISTHIS IS NOT AN ASBESTOS PROJECT2

03/18/2011120593358Open ↗

02/03/2011120593358Open ↗

▸Approvals, Objections & Sign-offs9

▸BISLANDMARKS APPROVAL5

03/16/2020123699097Open ↗

03/10/2020123699097Open ↗

Showing 3 of 5 on file for this type

▸BISADMINISTRATIVE OBJECTIONS2

02/03/2011120593358Open ↗

06/02/2008110185308Open ↗

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1

12/16/2008110185308Open ↗

▸BISSCHEDULE A - OCCUPANCY / USE1

01/21/2020123699097Open ↗

▸Cost, Insurance & Ownership6

▸BISCOST AFFIDAVIT6

01/29/2021123699097Open ↗

03/16/2020123699097Open ↗

01/21/2020123699097Open ↗

Showing 3 of 6 on file for this type

▸Filing & Intake Forms8

▸BISEFILING COVER SHEET4

03/10/2020123699097Open ↗

01/21/2020123699097Open ↗

02/03/2011120593358Open ↗

Showing 3 of 4 on file for this type

▸BISADDITIONAL INFORMATION3

02/03/2021123699097Open ↗

02/02/2021123699097Open ↗

01/21/2020123699097Open ↗

▸BISBOROUGH INTAKE FORM1

02/13/2019120593358Open ↗

▸Other Documents3

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION2

03/16/2020123699097Open ↗

▸BISPLOT DIAGRAM1

01/21/2020123699097Open ↗