Condo, residential tower (mixed-use, multi-family elevator) [derived]

Block Hall Condominium

21 SOUTH WILLIAM STREET · BIN 1087244

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1928Year Built

8Stories

RMBuilding Class

C5-5Zoning

23,980 sfGross Floor Area

32Units

LL97 CoveredRent Stabilized4 Open Violations ▸FISP: SWARMP

Condo, residential tower (mixed-use, multi-family elevator) [derived] · Owner of record: BLOCK HALL CONDOMINIUM · 4,377 sf lot · 5.48 FAR built · Flood zone X500

Locations of Work

Architecture

Roof1p · 1 filing · 9 docs

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
KG PROPERTIES	2	07/08/2026
CENTRAL PARK CONDOMINIUM	3	03/22/2026
KG PROPERTIES OF NY	2	03/22/2026
NOT ON FILE OWNER OF	1	03/22/2026
21 S WILLIAM STR	1	03/22/2026
BLACK HALL CO.	2	03/22/2026
BLACK HALL DEVELOPMENT CO	11	03/22/2026
KENNELLY DEVELOPMENT COMP	1	03/22/2026
BLOCKHALL DEVELOPMENT	16	03/22/2026
21-23 SOUTH WILLIAM STREET	34	03/21/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
KZ ENGINEERING, P.C	3	12/23/2022
RIMKUS NEW YORK PLLC	1	08/08/2022
BITOPI CONSULTANTS LLC	1	04/19/2019

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
SYNERGY BUILDING CONSULTANTS	3	03/21/2026
AK CONSULTING SERVICES	2	03/21/2026
CORNERSTONE CONSULTING	1	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
AMSTERDAM RESTORATION LLC	General Contractor	3	03/21/2026
CEPRINE CONSTRUCTION INC	General Contractor	2	07/08/2026
GREGORY PAPANTONIOU	Electrical	1	03/21/2026
PRESERV BLD RESTOR MGT IN	General Contractor	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
RIMKUS NEW YORK, PLLC	8123	1	08/08/2022

Building Lifecycle

All (86)Filed (5)Permit Issued (4)Signed Off (2)Facade (FISP) (12)Violation (60)Special Inspection (3)

12/13/2024

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

12/13/2024

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

11/15/2023

Violation issued (HPD, closed)

08/04/2023

Signed off — Alteration

M08027357-I1

08/04/2023

Signed off — Alteration

Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.

M08027365-I1

03/15/2023

Violation issued (HPD, closed)

12/23/2022

Filed — Alteration

Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.

M08027365-P1

11/15/2022

Permit issued — General Construction

M00742579-I1-GC

11/02/2022

Violation issued (HPD, closed)

10/28/2022

Permit issued — Supported Scaffold

M08027365-I1-SF

10/27/2022

Filed — Alteration

M08027357-I1

10/27/2022

Filed — Alteration

Installation of temporary supported scaffold per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application.

M08027365-I1

10/27/2022

Permit issued — Sidewalk Shed

M08027357-I1-SH

08/08/2022

Filed — Alteration

HEREBY FILING FACADE RESTORATION AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS, OR OCCUPANCY

M00742579-I1

08/02/2022

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/20/2022

Special inspection requirement — Masonry

Brian Sullivan

05/20/2022

Special inspection requirement — Structural Stability – Alterations of existing buildings

Brian Sullivan

05/20/2022

Special inspection requirement — Final

Brian Sullivan

03/21/2022

Cycle 9 facade report signed — SWARMP

02/18/2022

Cycle 9 facade inspection completed

02/16/2022

Violation issued (HPD, closed)

01/13/2022

Cycle 9 facade report submitted

12/01/2021

Violation issued (DOB, open)

V-DOB VIOLATION - ACTIVE

04/01/2021

Violation issued (HPD, closed)

01/29/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

11/02/2019

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

10/25/2019

Violation issued (HPD, closed)

08/02/2019

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/02/2019

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

04/19/2019

Filed — Alteration

INSTALLATION OF NEW SIDEWALK SHED AT 21 SOUTH WILLIAM STREET , MANHATTAN AS INDICATED ON PLANS. THERE WILL BE NO CHANGE IN THE USE, EGRESS, OR OCCUPANCY UNDER THIS APPLICATION.

M00152045-I1

04/19/2019

Permit issued — Sidewalk Shed

M00152045-I1-SH

04/06/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

11/06/2017

Violation issued (HPD, closed)

06/12/2017

Cycle 8 facade report signed — SWARMP

02/21/2017

Cycle 8 facade report submitted

02/04/2017

Cycle 8 facade inspection completed

01/28/2016

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

10/01/2015

Violation issued (HPD, closed)

06/10/2015

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/12/2015

Violation issued (ECB, closed)

Boilers

05/30/2014

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

05/15/2014

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

01/28/2014

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

07/17/2012

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

02/21/2012

Cycle 7 facade report submitted

02/11/2012

Cycle 7 facade report signed — SWARMP

01/30/2012

Cycle 7 facade inspection completed

06/07/2011

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

06/07/2011

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

06/07/2011

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

06/07/2011

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

12/31/2009

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

09/02/2009

Violation issued (ECB, closed)

Construction

01/01/2009

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

07/28/2008

Violation issued (DOB, closed)

V*-DOB VIOLATION - Resolved

07/09/2008

Violation issued (ECB, closed)

Construction

03/06/2008

Violation issued (ECB, closed)

Construction

10/19/2006

Cycle 6 facade report submitted

10/10/2006

Cycle 6 facade report signed — SAFE

06/21/2006

Cycle 6 facade inspection completed

Latest 60 of 86 events.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Permit Issued	PRESERV BLD RESTOR MGT IN	11/15/2022
DOB NOW	Supported Scaffold	Signed-off	CEPRINE CONSTRUCTION INC	10/28/2022
DOB NOW	Sidewalk Shed	Signed-off	CEPRINE CONSTRUCTION INC	10/27/2022
DOB NOW	Sidewalk Shed	Permit Issued	AMSTERDAM RESTORATION LLC	04/19/2019
BIS	PL	ISSUED	NEW YORK HEATING CORP	02/13/2013
BIS	PL	ISSUED	DC BUILDING SERVICES INC	12/07/2011
BIS	SD	ISSUED	T.M.J PLBG & HTG CORP	03/03/2011
BIS	PL	ISSUED	MACREDDIN PLBG & HTG INC	04/21/2010
BIS	OT	ISSUED	GLENHILL CONSTRUCTION COR	04/13/2010
BIS	OT	ISSUED	GLENHILL CONSTRUCTION COR	01/05/2010
BIS	OT	ISSUED	GLENHILL CONSTRUCTION COR	04/30/2009
BIS	SD	ISSUED	TJ MECHANICAL CORP	02/27/2007
BIS	PL	ISSUED	JFR CONSTRUCTION CORP	02/27/2006
BIS	PL	ISSUED	JFR CONSTRUCTION CORP	02/16/2006
BIS	SP	ISSUED	TJ MECHANICAL CORP.	02/14/2006
BIS	OT	ISSUED	WELBUILT EQUIPMENT	02/13/2006
BIS	MH	ISSUED	WELBUILT EQUIPMENT	02/13/2006
BIS	FP	ISSUED	CHIEF FIRE PREVENTION & MECHANIC	02/09/2006
BIS	BL	ISSUED	JFR CONSTRUCTION CORP	01/05/2006
BIS	OT	ISSUED	WELBUILT EQ.	12/16/2005
BIS	EQ	ISSUED	ATLANTIC HEYDT CORP.	10/12/2005
BIS	EQ	ISSUED	ATLANTIC-HEYDT CORP.	10/04/2005
BIS	OT	ISSUED	WALL STREET BUILDERS LLC	09/13/2005
BIS	—	ISSUED	WALL STREET BUILD. LLC .	09/13/2005
BIS	SD	ISSUED	TJ MECHANICAL CORP	03/04/2005
BIS	PL	ISSUED	JFR CONSTRUCTION CORP	02/23/2005
BIS	EQ	ISSUED	ATLANTIC HEYDT CORP.	01/10/2005
BIS	—	ISSUED	WALL STREET BUILD. LLC .	01/07/2005
BIS	EQ	ISSUED	ATLANTIC-HEYDT CORP.	01/03/2005
BIS	EQ	ISSUED	ATLANTIC HEYDT CORP.	10/06/2004
BIS	EQ	ISSUED	ATLANTIC-HEYDT CORP.	10/04/2004
BIS	OT	ISSUED	WALL STREET BUILDERS LLC	09/10/2004
BIS	OT	ISSUED	WALL STREET BUILDERS LLC	05/25/2004
BIS	OT	ISSUED	WALL STREET BUILDERS LLC	05/25/2004
BIS	EQ	ISSUED	ATLANTIC HEYDT CORP.	02/19/2004
BIS	EQ	ISSUED	ATLANTIC-HEYDT CORP.	02/10/2004
BIS	EQ	ISSUED	ATLANTIC-HEYDT	04/18/2003
BIS	EQ	ISSUED	ATLANTIC HEYDT CORP.	04/18/2003
BIS	OT	ISSUED	MCCANN INC	03/10/2003
BIS	OT	ISSUED	MCCANN INC	03/10/2003

+ 10 more permits on file

6 projects · most recent 11/01/2022

Filed	Status	Contractor	Scope
11/01/2022	Complete	BOROWIDE ELECT'L CONTR'S	—
04/19/2019	Complete	VOLTAGE ELECTRIC CORP	—
04/10/2019	Permit Issued	GREEN POWER ELECTRIC CORP	—
03/29/2019	Complete	VOLTAGE ELECTRIC CORP	—
02/28/2019	Complete	VOLTAGE ELECTRIC CORP	—
02/27/2019	Complete	VOLTAGE ELECTRIC CORP	—

1 project · most recent 04/19/2019

Sidewalk Shed

Filed	Status	Contractor	Scope
04/19/2019	Permit Issued	AMSTERDAM RESTORATION LLC	Sidewalk Shed

▾Special Inspection Requirements (DOB NOW) — 3

Date	Requirement	Inspector	Role
05/20/2022	Masonry	Brian Sullivan	special
05/20/2022	Structural Stability – Alterations of existing buildings	Brian Sullivan	special
05/20/2022	Final	Brian Sullivan	progress

▾Documents — 67 on file (BIS + DOB NOW)

▸Plans & Drawings6

▸DOB NOWPlans/Sketch5

09/02/2026M00742579-I1Request digital key ↗

09/02/2026M00742579-P1Request digital key ↗

09/01/2026M08027357-I1Request digital key ↗

Showing 3 of 5 on file for this type

▸DOB NOWPlans/Sketch - Sidewalk Shed1

09/05/2026M00152045-I1Request digital key ↗

▸Applications & Permits9

▸BISWORK PERMIT APPLICATION4

02/19/2013121533705Open ↗

04/20/2010120208952Open ↗

01/05/2010120208952Open ↗

Showing 3 of 4 on file for this type

▸BISPLAN / WORK APPROVAL APPLICATION4

02/19/2013121533705Open ↗

06/28/2010120208952Open ↗

12/09/2009120208952Open ↗

Showing 3 of 4 on file for this type

▸BISPLACE OF ASSEMBLY1

06/01/2023104326007Open ↗

▸Seals & Professional Certifications19

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION8

06/28/2013121533705Open ↗

02/19/2013121533705Open ↗

Showing 3 of 8 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature6

09/02/2026M00742579-I1Open ↗

08/13/2026M00152045-I1Open ↗

08/13/2026M00742579-P1Open ↗

Showing 3 of 6 on file for this type

▸DOB NOWSpecial Inspector Seal & Signature2

09/01/2026M00742579-I1Open ↗

▸BISPROFESSIONAL CERTIFIED CHECKLIST1

02/19/2013121533705Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1

02/19/2013121533705Open ↗

▸DOB NOWProgress Inspector Seal & Signature1

09/01/2026M00742579-I1Open ↗

▸Trade Schedules & Equipment5

▸BISSELF-CERT PLUMBING NOTICE3

03/25/2013121533705Open ↗

11/16/2010120208952Open ↗

08/30/2010120208952Open ↗

▸BISSCHEDULE B - PLUMBING2

06/28/2010120208952Open ↗

12/09/2009120208952Open ↗

▸Environmental & Asbestos6

▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'3

12/09/2009120208952Open ↗

03/06/2009110466647Open ↗

▸DOB NOWDEP ACP-5: Asbestos Assessment Report2

09/02/2026M00742579-I1Open ↗

08/13/2026M00742579-P1Open ↗

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

02/19/2013121533705Open ↗

▸Energy Compliance4

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS2

06/28/2013121533705Open ↗

02/19/2013121533705Open ↗

▸BISEN2 - As Built Energy Analysis1

06/28/2013121533705Open ↗

▸BISTR8: Energy Code Progress Inspections1

02/19/2013121533705Open ↗

▸Approvals, Objections & Sign-offs6

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST4

06/28/2013121533705Open ↗

12/01/2010120208952Open ↗

12/07/2009110466647Open ↗

Showing 3 of 4 on file for this type

▸BISLETTERS - SUPPORTING DOCUMENTATION1

11/17/2009110466647Open ↗

▸BISADMINISTRATIVE OBJECTIONS1

03/06/2009110466647Open ↗

▸Cost, Insurance & Ownership6

▸BISCOST AFFIDAVIT6

06/28/2013121533705Open ↗

02/19/2013121533705Open ↗

12/01/2010120208952Open ↗

Showing 3 of 6 on file for this type

▸Filing & Intake Forms5

▸BISEFILING COVER SHEET3

02/19/2013121533705Open ↗

12/09/2009120208952Open ↗

03/06/2009110466647Open ↗

▸BISADDITIONAL INFORMATION2

10/22/2010120208952Open ↗

06/28/2010120208952Open ↗

▸Other Documents1

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1

06/28/2013121533705Open ↗