Walk-up cooperative

427 WEST 21 STREET

MANHATTAN · Chelsea-Hudson Yards · BIN 1012627

💬 Discuss this project

1853Year Built

4Stories

C6Building Class

R7BZoning

—Gross Floor Area

5Units

0 Open Violations

Walk-up cooperative · Owner of record: 427 W21 ST CP · 2.27 FAR built · Flood zone X

Locations of Work

ArchitecturePlumbingGeneral

Filed — no permit issued4p · 1 filing · 9 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
421 WEST 21 STREET	9	03/21/2026
427 WEST 21 STREET	6	03/21/2026
427 W21 ST CP	2	03/22/2026
Top Hat Home Services	1	03/21/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
AVID DESIGNS, INC	2	03/17/2025

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
JOE MIDDLETON	Electrical	1	03/21/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
AVID DESIGNS, INC.	453	2	03/17/2025

Building Lifecycle

All (34)Filed (2)Violation (10)Objection (18)Special Inspection (4)

04/29/2026

Violation issued (HPD, closed)

06/04/2025

Violation issued (HPD, closed)

06/04/2025

Objection resolved — Addressed

06/04/2025

Objection resolved — Addressed

06/04/2025

Objection resolved — Addressed

05/02/2025

Objection resolved — Addressed

05/02/2025

Objection resolved — Addressed

04/25/2025

Objection raised — Plumbing

04/16/2025

Objection raised — Other

04/16/2025

Objection resolved — Addressed

04/16/2025

Objection raised — Plumbing

04/11/2025

Objection resolved — Addressed

04/11/2025

Objection resolved — Addressed

03/26/2025

Objection raised — Cost

03/26/2025

Objection resolved — Addressed

03/26/2025

Objection raised — Scope

03/24/2025

Objection raised — Scope

03/24/2025

Objection raised — Scope

03/24/2025

Objection raised — Admin

03/24/2025

Objection raised — Admin

03/17/2025

Filed — Alteration

HEREWITH FILING FOR THE ASSOCIATED PLUMBING OF AN APPLICATION FOR THE RENOVATION,OF AN EXISTING MULTI-FAMILY DWELLING . NO OTHER WORK PROPOSED UNDER THIS APPLICATION.

M01186104-S1

03/14/2025

Filed — Alteration

HEREWITH FILING FOR THE ASSOCIATED PLUMBING OF AN APPLICATION FOR THE RENOVATION,OF AN EXISTING MULTI-FAMILY DWELLING . NO OTHER WORK PROPOSED UNDER THIS APPLICATION.

M01186104-I1

03/14/2025

Special inspection requirement — Fire-Resistant Penetrations and Joints

Jeffrey Geary

02/25/2025

Special inspection requirement — Fire-Resistant Penetrations and Joints

Jeffrey Geary

02/25/2025

Special inspection requirement — Energy Code Compliance Inspections

Jeffrey Geary

02/25/2025

Special inspection requirement — Fire-Resistance Rated Construction

Jeffrey Geary

04/01/2024

Violation issued (HPD, closed)

11/15/2023

Violation issued (HPD, closed)

03/15/2023

Violation issued (HPD, closed)

11/02/2022

Violation issued (HPD, closed)

02/16/2022

Violation issued (HPD, closed)

04/01/2021

Violation issued (HPD, closed)

10/26/2016

Violation issued (HPD, closed)

10/02/2015

Violation issued (HPD, closed)

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
BIS	PL	ISSUED	JUMPER P&H GEN CONTR INC	08/15/2017
BIS	MH	ISSUED	I BEAM CONSTRUCTION LLC	08/03/2017
BIS	OT	ISSUED	I BEAM CONSTRUCTION LLC	08/02/2017
BIS	OT	ISSUED	I BEAM CONSTRUCTION LLC	02/08/2017
BIS	MH	ISSUED	I BEAM CONSTRUCTION LLC	02/08/2017
BIS	OT	ISSUED	I BEAM CONSTRUCTION LLC	02/08/2017
BIS	PL	ISSUED	TOP DOG PLBG & HTG CORP	07/06/2016
BIS	OT	ISSUED	I BEAM CONSTRUCTION LLC	05/25/2016
BIS	MH	ISSUED	I BEAM CONSTRUCTION LLC	05/25/2016
BIS	OT	ISSUED	I BEAM CONSTRUCTION LLC	05/25/2016
BIS	PL	ISSUED	WASOFF PLBG & UTILITY CO	09/20/1996
BIS	BL	ISSUED	WASOFF PLBG & UTILITY CO	09/20/1996

1 project · most recent 03/17/2025

Gas Water/Sanitary

Filed	Status	Contractor	Scope
03/17/2025	—	—	Gas, Water/Sanitary

1 project · most recent 12/15/2024

Filed	Status	Contractor	Scope
12/15/2024	Complete	AMBER ELECTL CONTNG INC	—

▾Special Inspection Requirements (DOB NOW) — 4

Date	Requirement	Inspector	Role
03/14/2025	Fire-Resistant Penetrations and Joints	Jeffrey Geary	special
02/25/2025	Fire-Resistant Penetrations and Joints	Jeffrey Geary	special
02/25/2025	Energy Code Compliance Inspections	Jeffrey Geary	progress
02/25/2025	Fire-Resistance Rated Construction	Jeffrey Geary	progress

▾Documents — 96 on file (BIS + DOB NOW)

▸Plans & Drawings2

▸DOB NOWPlans/Sketch2

08/24/2026M01186104-S1Request digital key ↗

08/24/2026M01186104-I1Request digital key ↗

▸Applications & Permits22

▸BISWORK PERMIT APPLICATION12

08/16/2017140675589Open ↗

08/03/2017140675589Open ↗

08/02/2017140675589Open ↗

Showing 3 of 12 on file for this type

▸BISPLAN / WORK APPROVAL APPLICATION8

08/24/2017122678307Open ↗

07/31/2017140675589Open ↗

05/03/2017122678307Open ↗

Showing 3 of 8 on file for this type

▸DOB NOWLPC Approval/Permit2

08/13/2026M01186104-I1Open ↗

08/13/2026M01186104-S1Open ↗

▸Seals & Professional Certifications20

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION13

02/26/2019122678307Open ↗

02/25/2019122678307Open ↗

Showing 3 of 13 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature2

08/13/2026M01186104-S1Open ↗

08/13/2026M01186104-I1Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

07/31/2017140675589Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1

05/17/2010120354721Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

07/31/2017140675589Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

07/31/2017140675589Open ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

05/17/2010120354721Open ↗

▸Trade Schedules & Equipment6

▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE3

08/24/2017122678307Open ↗

05/03/2017122678307Open ↗

02/11/2016122678307Open ↗

▸BISEQUIPMENT USE APPLICATION/PERMIT1

02/25/2019122678307Open ↗

▸BISEQUIPMENT USE PERMITS1

02/25/2019122678307Open ↗

▸BISSCHEDULE B - PLUMBING1

07/31/2017140675589Open ↗

▸Safety & Tenant Protection7

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE5

06/02/2016122678307Open ↗

Showing 3 of 5 on file for this type

▸BISTENANT PROTECTION PLAN AND NOTES1

07/31/2017140675589Open ↗

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

06/02/2016122678307Open ↗

▸Environmental & Asbestos6

▸BISASBESTOS: CERTIFICATION (DEP ACP5)3

07/31/2017140675589Open ↗

06/02/2016122678307Open ↗

02/11/2016122678307Open ↗

▸DOB NOWDEP ACP-5: Asbestos Assessment Report2

08/13/2026M01186104-S1Open ↗

08/13/2026M01186104-I1Open ↗

▸BISASBESTOS-EXEMPTION (ASB4)1

05/17/2010120354721Open ↗

▸Energy Compliance3

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

10/20/2017140675589Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

07/31/2017140675589Open ↗

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY1

07/31/2017140675589Open ↗

▸Inspections & Test Reports1

▸BISTECHNICAL REPORT: RESPONSIBILITY1

07/31/2017140675589Open ↗

▸Approvals, Objections & Sign-offs8

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST4

02/26/2019122678307Open ↗

02/21/2019122678307Open ↗

10/20/2017140675589Open ↗

Showing 3 of 4 on file for this type

▸BISLANDMARKS APPROVAL3

02/26/2019122678307Open ↗

07/31/2017140675589Open ↗

05/19/2016122678307Open ↗

▸BISADMINISTRATIVE OBJECTIONS1

05/17/2010120354721Open ↗

▸Cost, Insurance & Ownership5

▸BISCOST AFFIDAVIT4

02/21/2019122678307Open ↗

10/20/2017140675589Open ↗

07/31/2017140675589Open ↗

Showing 3 of 4 on file for this type

▸BISHIC LICENSE OR AFFIDAVIT1

06/02/2016122678307Open ↗

▸Filing & Intake Forms15

▸BISADDITIONAL INFORMATION5

08/28/2017140675589Open ↗

08/03/2017122678307Open ↗

04/04/2016122678307Open ↗

Showing 3 of 5 on file for this type

▸BISBOROUGH INTAKE FORM5

02/26/2019122678307Open ↗

02/21/2019122678307Open ↗

10/20/2017140675589Open ↗

Showing 3 of 5 on file for this type

▸BISEFILING COVER SHEET3

02/11/2016122678307Open ↗

▸BISeFiling Job Application Cover Sheet2

05/17/2010120354721Open ↗

07/31/2017140675589Open ↗

▸Other Documents1

▸DOB NOWProof of Historic Building1

08/13/2026M01186104-I1Open ↗