Primarily 1 family with 1 store or office

34 WEST 21 STREET

MANHATTAN · Midtown South-Flatiron-Union Square · BIN 1089403

💬 Discuss this project

2018Year Built

7Stories

S1Building Class

C6-4AZoning

7,975 sfGross Floor Area

2Units

1 Open Violation ▸

Primarily 1 family with 1 store or office · Owner of record: WEST 21ST ASSOCIATES LLC · 1,481 sf lot · 5.38 FAR built · Flood zone X

Locations of Work

ArchitectureStructuralPlumbingGeneral

Site & exterior22p · 1 filing · 20 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
ROCK GROUP NY	34	07/08/2026
FLATIRON 30	22	03/21/2026
WEST 21ST ASSOCIATES	17	03/22/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
11/20/2025	$9.3M	—	Private party → APSEC RESOLUTION, LLC	$1,165/sf building
08/05/2016	$4.2M	—	— → —	— not available

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
MOHAMMAD AHEAD, PE	8	08/03/2020

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
GREEN STUDIO	16	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
ROCK GROUP NY CORP	General Contractor	14	07/08/2026
PLATINUM SERVICES NY LLC	General Contractor	6	03/21/2026
JOHN KARALIS	Electrical	2	03/21/2026
RICHARD HIRSCHEL	Electrical	1	03/21/2026
VAN VASSELL	Electrical	1	03/21/2026
J.E.S. PLBG & HTG CORP	Plumbing	1	03/22/2026
JEFFREY SOCOL	Electrical	1	03/21/2026
RRP PLUMBING CORP	Plumbing	1	03/22/2026
JOHN MOORE	Electrical	1	03/21/2026
MOORE, JOHN	Electrical	1	03/21/2026

Building Lifecycle

All (50)Filed (8)Permit Issued (8)Signed Off (1)Violation (31)Special Inspection (2)

07/19/2022

Signed off — Alteration

INSTALLATION OF HEAVY DUTY SIDEWALK SHED & PIPE SCAFFOLD, NEEDLE BEAMS, NETTING AS PER PLANS. SIDEWALK SHED LIVE LOAD 300 PSF. SIDEWALK SHED & PIPE SCAFFOLD, NEEDLE BEAMS, NETTING SHALL COMPLY WITH CHAPTER #33 OF THE 2014 CODE NO CHANGE TO USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.

M00029419-I1

06/23/2021

Violation issued (ECB, closed)

Construction

06/09/2021

Violation issued (ECB, closed)

Construction

10/06/2020

Violation issued (ECB, closed)

Construction

10/02/2020

Permit issued — Sidewalk Shed

M00029419-I1-SH

09/25/2020

Permit issued — Supported Scaffold

M00029419-I1-SF

09/16/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/04/2020

Special inspection requirement — Final

MOHAMMAD AHEAD

08/04/2020

Special inspection requirement — Preliminary

MOHAMMAD AHEAD

08/03/2020

Filed — Alteration

M00029419-P7

07/27/2020

Filed — Alteration

M00029419-P6

06/23/2020

Filed — Alteration

M00029419-P5

06/19/2020

Violation issued (ECB, closed)

Construction

06/18/2020

Violation issued (ECB, closed)

Construction

06/18/2020

Violation issued (ECB, closed)

Construction

06/18/2020

Violation issued (ECB, closed)

Construction

03/10/2020

Violation issued (ECB, closed)

Construction

02/11/2020

Violation issued (ECB, closed)

Construction

02/11/2020

Violation issued (ECB, closed)

Construction

02/11/2020

Violation issued (ECB, closed)

Construction

01/13/2020

Violation issued (ECB, closed)

Construction

01/08/2020

Violation issued (ECB, closed)

Construction

01/08/2020

Violation issued (ECB, closed)

Construction

12/19/2019

Permit issued — Supported Scaffold

M00029419-I1-SH

12/19/2019

Permit issued — Sidewalk Shed

M00029419-I1-SF

09/25/2019

Violation issued (ECB, closed)

Construction

09/25/2019

Violation issued (ECB, closed)

Construction

03/12/2019

Filed — Alteration

M00029419-P4

01/11/2019

Filed — Alteration

M00029419-P3

12/20/2018

Permit issued — Sidewalk Shed

M00029419-I1-SF

12/20/2018

Permit issued — Sidewalk Shed

M00029419-I1-SH

11/14/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/17/2018

Violation issued (ECB, closed)

Construction

08/16/2018

Violation issued (ECB, closed)

Construction

08/16/2018

Violation issued (ECB, closed)

Construction

08/16/2018

Violation issued (ECB, closed)

Construction

08/16/2018

Violation issued (ECB, closed)

Construction

08/13/2018

Filed — Alteration

M00029419-P2

04/26/2018

Filed — Alteration

M00029419-P1

03/26/2018

Permit issued — Supported Scaffold

M00029419-I1-SF

03/26/2018

Permit issued — Sidewalk Shed

M00029419-I1-SH

03/23/2018

Filed — Alteration

M00029419-I1

12/18/2017

Violation issued (ECB, closed)

Construction

12/15/2017

Violation issued (ECB, closed)

Construction

12/15/2017

Violation issued (ECB, closed)

Construction

12/15/2017

Violation issued (ECB, closed)

Construction

12/15/2017

Violation issued (ECB, closed)

Construction

09/28/2016

Violation issued (ECB, closed)

Construction

09/28/2016

Violation issued (ECB, closed)

Construction

07/21/2015

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Sidewalk Shed	Signed-off	PLATINUM SERVICES NY LLC	10/02/2020
DOB NOW	Supported Scaffold	Signed-off	PLATINUM SERVICES NY LLC	09/25/2020
DOB NOW	Supported Scaffold	Signed-off	ROCK GROUP NY CORP	12/19/2019
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	12/19/2019
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	12/20/2018
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	12/20/2018
DOB NOW	Supported Scaffold	Signed-off	ROCK GROUP NY CORP	03/26/2018
DOB NOW	Sidewalk Shed	Signed-off	ROCK GROUP NY CORP	03/26/2018
BIS	SP	ISSUED	CASINO PLMBG & HTG CORP	09/11/2024
BIS	SP	ISSUED	CASINO PLMBG & HTG CORP	07/06/2023
BIS	PL	ISSUED	L.L.G. PLBG & HTG INC	07/06/2023
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	01/13/2023
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	07/19/2022
BIS	—	ISSUED	901 GREEN AVENUE BUILDERS	02/03/2022
BIS	PL	ISSUED	DYNAMIC PLBG & SPRKLR COR	01/05/2022
BIS	SP	ISSUED	DYNAMIC PLBNG & SPRKR COR	01/05/2022
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	09/01/2021
BIS	EQ	ISSUED	ROCK GROUP NY CORP	04/26/2021
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	04/14/2021
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	12/30/2020
BIS	SP	ISSUED	DYNAMIC PLBNG & SPRKR COR	12/02/2020
BIS	PL	ISSUED	DYNAMIC PLBG & SPRKLR COR	12/02/2020
BIS	—	ISSUED	JC CONSULTING & MANAGEMENT	11/04/2020
BIS	EQ	ISSUED	HABITAT DEVELOPERS CORP	09/01/2020
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	07/07/2020
BIS	EQ	ISSUED	ROCK GROUP NY CORP	05/08/2020
BIS	PL	ISSUED	RRP PLUMBING CORP	01/08/2020
BIS	EQ	ISSUED	HABITAT DEVELOPERS CORP	09/04/2019
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	05/01/2019
BIS	EQ	ISSUED	ROCK GROUP NY CORP	04/29/2019
BIS	SP	ISSUED	RRP PLUMBING CORP	12/13/2018
BIS	PL	ISSUED	RRP PLUMBING CORP	12/13/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	08/30/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	08/30/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	08/30/2018
BIS	EQ	ISSUED	HABITAT DEVELOPERS CORP	08/29/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	08/29/2018
BIS	EQ	ISSUED	ROCK GROUP NY CORP	05/22/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	05/10/2018
BIS	—	ISSUED	HABITAT DEVELOPERS CORP	05/10/2018

+ 18 more permits on file

4 projects · most recent 11/30/2022

General Wiring

Filed	Status	Contractor	Scope
11/30/2022	Cancelled	TRIBORO ELEC'L CONTR'G CO	General Wiring
10/13/2022	Permit Issued	ACE ELEC'L CONSTRUCTION	General Wiring
10/25/2020	Permit Issued	HIRSCHEL ELECTRICAL INC.	General Wiring
05/21/2018	Cancelled	TRIBORO ELEC'L CONTR'G CO	1 meters, 1 new_meters

▾Special Inspection Requirements (DOB NOW) — 2

Date	Requirement	Inspector	Role
08/04/2020	Final	MOHAMMAD AHEAD	progress
08/04/2020	Preliminary	MOHAMMAD AHEAD	progress

▾Documents — 154 on file (BIS + DOB NOW)

▸Plans & Drawings15

▸DOB NOWPlans/Sketch - Supported Scaffold6

09/06/2026M00029419-P4Request digital key ↗

09/06/2026M00029419-I1Request digital key ↗

08/15/2026M00029419-P6Request digital key ↗

Showing 3 of 6 on file for this type

▸DOB NOWPlans/Sketch - Sidewalk Shed6

09/06/2026M00029419-I1Request digital key ↗

08/15/2026M00029419-P7Request digital key ↗

08/15/2026M00029419-P4Request digital key ↗

Showing 3 of 6 on file for this type

▸DOB NOWPlans/Sketch3

09/06/2026M00029419-P1Request digital key ↗

09/06/2026M00029419-I1Request digital key ↗

09/06/2026M00029419-P2Request digital key ↗

▸Applications & Permits28

▸BISPLAN / WORK APPROVAL APPLICATION13

02/06/2026121938813Open ↗

11/01/2022140536962Open ↗

10/24/2022122717202Open ↗

Showing 3 of 13 on file for this type

▸BISWORK PERMIT APPLICATION13

07/06/2023140168155Open ↗

12/03/2020140168155Open ↗

12/14/2018140168155Open ↗

Showing 3 of 13 on file for this type

▸BISBPP-5 - Authorization to the Department of Transportation2

03/02/2022140156701Open ↗

03/19/2015140156701Open ↗

▸Seals & Professional Certifications39

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION17

07/09/2018122909102Open ↗

06/21/2018122909102Open ↗

Showing 3 of 17 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature8

08/13/2026M00029419-P5Open ↗

08/13/2026M00029419-P6Open ↗

08/13/2026M00029419-P4Open ↗

Showing 3 of 8 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT4

06/02/2017140648208Open ↗

08/17/2016140536962Open ↗

05/23/2016122721616Open ↗

Showing 3 of 4 on file for this type

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2

06/02/2017140648208Open ↗

08/17/2016140536962Open ↗

▸BISApplicant / Owner Signature2

03/28/2014140168155Open ↗

02/10/2014140156701Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2

06/02/2017140648208Open ↗

08/17/2016140536962Open ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST2

05/23/2016122721616Open ↗

05/05/2016122717202Open ↗

▸DOB NOWProgress Inspector Seal & Signature2

08/31/2026M00029419-I1Open ↗

▸Trade Schedules & Equipment1

▸BISFA - FDNY APPROVAL : FD-FAA1

03/17/2014121938813Open ↗

▸Safety & Tenant Protection11

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE6

05/31/2017122909102Open ↗

Showing 3 of 6 on file for this type

▸BISTenant Protection Plan and Notes3

10/04/2016122909102Open ↗

05/23/2016122721616Open ↗

05/05/2016122717202Open ↗

▸BISST-1 Street Tree Checklist1

03/25/2014140156701Open ↗

▸BISBPP: STREET TREES SITE PLAN1

02/26/2015140156701Open ↗

▸Environmental & Asbestos1

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

06/16/2016122757098Open ↗

▸Energy Compliance1

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

06/16/2016122757098Open ↗

▸Inspections & Test Reports12

▸BISTECHNICAL REPORT: RESPONSIBILITY7

01/25/2023140168155Open ↗

10/27/2022122717202Open ↗

10/27/2022122721616Open ↗

Showing 3 of 7 on file for this type

▸BISSTRUCTURAL STABILITY - EXISTING BUILDINGS1

10/27/2022122717202Open ↗

▸BISHYDRAULIC FLOW CALCULATIONS1

07/08/2014140168155Open ↗

▸BISDEP Hydrant Flow Test Letter1

08/08/2014140168155Open ↗

▸BISTECHNICAL REPORT: PILE DRIVING1

06/21/2018122909102Open ↗

▸BISTECHNICAL REPORT: SOIL INSPECTION1

12/13/2016122909102Open ↗

▸Approvals, Objections & Sign-offs17

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST6

11/15/2022140536962Open ↗

10/27/2022122717202Open ↗

10/27/2022122721616Open ↗

Showing 3 of 6 on file for this type

▸BISSUPERSEDING LETTER4

07/07/2023140168155Open ↗

06/29/2023140168155Open ↗

12/03/2020140168155Open ↗

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▸BISFINAL4

11/14/2022140536962Open ↗

10/27/2022122717202Open ↗

10/27/2022122721616Open ↗

Showing 3 of 4 on file for this type

▸BISLETTERS - SUPPORTING DOCUMENTATION1

05/23/2017122909102Open ↗

▸BISLANDMARKS SIGNOFF1

01/20/2023140168155Open ↗

▸BISLANDMARKS APPROVAL1

12/13/2016122909102Open ↗

▸Cost, Insurance & Ownership11

▸BISCOST AFFIDAVIT10

01/23/2023140168155Open ↗

01/19/2023140168155Open ↗

01/24/2022140168155Open ↗

Showing 3 of 10 on file for this type

▸BISCOST AFFIDAVIT (FINAL): PW31

11/14/2022140536962Open ↗

▸Filing & Intake Forms18

▸BISEFILING COVER SHEET6

10/04/2016122909102Open ↗

06/16/2016122757098Open ↗

05/23/2016122721616Open ↗

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▸BISADDITIONAL INFORMATION4

11/07/2018140648208Open ↗

12/26/2017140648208Open ↗

06/26/2017140648208Open ↗

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▸BISBOROUGH INTAKE FORM4

07/06/2023140168155Open ↗

12/03/2020140168155Open ↗

07/09/2018122909102Open ↗

Showing 3 of 4 on file for this type

▸BISEFILING JOB APPLICATION COVER SHEET4

06/02/2017140648208Open ↗

08/17/2016140536962Open ↗

03/28/2014140168155Open ↗

Showing 3 of 4 on file for this type