Five to six families

328 21 STREET

BROOKLYN · BIN 3017564

💬 Discuss this project

2019Year Built

4Stories

C2Building Class

R6BZoning

4,398 sfGross Floor Area

5Units

Rent Stabilized0 Open ViolationsFDNY Report ↗

Five to six families · Owner of record: 328 21 ST LLC · 1,903 sf lot · 2.31 FAR built · Flood zone X

Locations of Work

No floor-level scope or drawing coverage on file for this building.

▾Owner History (Filing Record)

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

Owner	Filings	Most Recent
CONSTRUCTION SVS CON NY	15	07/08/2026
328 21 STREET	13	03/22/2026
NYB BUILDERS	13	03/22/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
10/20/2016	$350K	—	Private party → 328 21 ST LLC	— not available

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
ARQUITECTURA VARELA	2	10/14/2021
GREEN DESIGN	5	12/09/2020

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
ATLANTIC BUILDING SUPPLY INC.	4	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
CONSTRUCTION SVS CON NY	General Contractor	14	07/08/2026
VIK MANAGEMENT CONSTRUCTI	General Contractor	3	03/22/2026
BT'S PLUMBING AND HEATING	Plumbing	2	03/22/2026
WU (WOODY) CHEN	Electrical	1	03/21/2026
KISHAN PLBG HEATING	General Contractor	1	03/22/2026

Building Lifecycle

All (45)Filed (7)Permit Issued (6)Signed Off (5)Violation (26)Special Inspection (1)

05/11/2026

Violation issued (HPD, closed)

06/16/2025

Violation issued (HPD, closed)

06/21/2022

Signed off — Alteration

PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

B00388876-I1

03/08/2022

Signed off — Alteration

B00280382-I1

03/08/2022

Signed off — Alteration

B00171231-I1

02/17/2022

Signed off — Alteration

B00612437-I1

02/17/2022

Signed off — Alteration

B00612412-I1

10/15/2021

Permit issued — Supported Scaffold

B00612437-I1-SF

10/15/2021

Permit issued — Sidewalk Shed

B00612412-I1-SH

10/14/2021

Filed — Alteration

B00612437-I1

10/14/2021

Filed — Alteration

B00612412-I1

12/10/2020

Special inspection requirement — Final

BRIAN T. O'CONNOR

12/09/2020

Filed — Alteration

PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

B00388876-P2

12/02/2020

Filed — Alteration

PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

B00388876-P1

10/28/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/25/2020

Permit issued — Supported Scaffold

B00388876-I1-SF

08/21/2020

Filed — Alteration

PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.

B00388876-I1

08/19/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/19/2020

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

07/27/2020

Violation issued (ECB, closed)

Construction

07/07/2020

Violation issued (DOB, closed)

VP*-VIOLATION UNSERVED ECB- DISMISSED

07/07/2020

Violation issued (DOB, closed)

VP*-VIOLATION UNSERVED ECB- DISMISSED

04/16/2020

Permit issued — Sidewalk Shed

B00171231-I1-SH

02/13/2020

Violation issued (ECB, closed)

Construction

02/13/2020

Violation issued (ECB, closed)

Construction

12/13/2019

Permit issued — Supported Scaffold

B00280382-I1-SF

12/12/2019

Filed — Alteration

B00280382-I1

08/27/2019

Violation issued (ECB, closed)

Construction

08/15/2019

Violation issued (ECB, closed)

Site Safety

08/15/2019

Violation issued (ECB, closed)

Site Safety

08/07/2019

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

07/15/2019

Violation issued (ECB, closed)

Construction

05/23/2019

Permit issued — Sidewalk Shed

B00171231-I1-SH

05/22/2019

Filed — Alteration

B00171231-I1

05/14/2019

Violation issued (ECB, closed)

Construction

03/28/2019

Violation issued (ECB, closed)

Construction

12/11/2018

Violation issued (ECB, closed)

Construction

10/29/2018

Violation issued (ECB, closed)

Construction

09/24/2018

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

08/31/2018

Violation issued (ECB, closed)

Construction

08/31/2018

Violation issued (ECB, closed)

Construction

08/31/2018

Violation issued (ECB, closed)

Construction

08/31/2018

Violation issued (ECB, closed)

Construction

08/30/2018

Violation issued (ECB, closed)

Construction

11/25/2017

Violation issued (ECB, closed)

Construction

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Supported Scaffold	Signed-off	CONSTRUCTION SVS CON NY	10/15/2021
DOB NOW	Sidewalk Shed	Signed-off	CONSTRUCTION SVS CON NY	10/15/2021
DOB NOW	Supported Scaffold	Signed-off	CONSTRUCTION SVS CON NY	08/25/2020
DOB NOW	Sidewalk Shed	Signed-off	CONSTRUCTION SVS CON NY	04/16/2020
DOB NOW	Supported Scaffold	Signed-off	CONSTRUCTION SVS CON NY	12/13/2019
DOB NOW	Sidewalk Shed	Signed-off	CONSTRUCTION SVS CON NY	05/23/2019
BIS	—	ISSUED	VIK MANAGEMENT CONSTRUCTI	07/30/2021
BIS	PL	ISSUED	BT'S PLUMBING AND HEATING	12/01/2020
BIS	—	ISSUED	VIK MANAGEMENT CONSTRUCTI	10/16/2020
BIS	EQ	ISSUED	VIK MANAGEMENT CONSTRUCTI	10/09/2020
BIS	EQ	ISSUED	NYB BUILDERS INC	07/07/2020
BIS	—	ISSUED	NYB BUILDERS INC	07/07/2020
BIS	PL	ISSUED	BT'S PLUMBING AND HEATING	09/10/2019
BIS	EQ	ISSUED	NYB BUILDERS INC	05/09/2019
BIS	—	ISSUED	NYB BUILDERS INC	05/09/2019
BIS	OT	ISSUED	NYB BUILDERS INC	10/01/2018
BIS	—	ISSUED	NYB BUILDERS INC	06/07/2018
BIS	EQ	ISSUED	NYB BUILDERS INC	06/07/2018
BIS	—	ISSUED	NYB BUILDERS INC	06/07/2018
BIS	—	RE-ISSUED	REGAL RECONSTRUCTION CORP.	12/28/2017
BIS	EQ	ISSUED	REGAL RECONSTRUCTION CORP.	10/18/2017
BIS	—	ISSUED	REGAL RECONSTRUCTION CORP.	10/18/2017

3 projects · most recent 10/29/2019

General Wiring

Filed	Status	Contractor	Scope
10/29/2019	Complete	S.T.K. ELECTRICAL CORP.	General Wiring
09/19/2019	Complete	S.T.K. ELECTRICAL CORP.	—
05/14/2019	Complete	BOROWIDE ELECT'L CONTR'S	—

▾Special Inspection Requirements (DOB NOW) — 1

Date	Requirement	Inspector	Role
12/10/2020	Final	BRIAN T. O'CONNOR	progress

▾Documents — 216 on file (BIS + DOB NOW)

▸Plans & Drawings7

▸DOB NOWPlans/Sketch - Supported Scaffold4

09/02/2026B00280382-I1Request digital key ↗

09/02/2026B00388876-I1Request digital key ↗

08/15/2026B00388876-P2Request digital key ↗

Showing 3 of 4 on file for this type

▸DOB NOWPlans/Sketch2

09/01/2026B00612437-I1Request digital key ↗

09/01/2026B00612412-I1Request digital key ↗

▸DOB NOWPlans/Sketch - Sidewalk Shed1

09/02/2026B00171231-I1Request digital key ↗

▸Applications & Permits52

▸BISPLAN / WORK APPROVAL APPLICATION32

11/10/2022321189682Open ↗

11/07/2022321189682Open ↗

09/16/2022321189682Open ↗

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▸BISWORK PERMIT APPLICATION15

02/19/2022321189682Open ↗

10/28/2020321189682Open ↗

10/26/2020321189682Open ↗

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▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2

05/03/2019321536370Open ↗

04/10/2019321536370Open ↗

▸BISBPP-5 - Authorization to the Department of Transportation2

08/19/2021340480606Open ↗

11/20/2019340480606Open ↗

▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

12/23/2021321189682Open ↗

▸Zoning, Tax Lot & Property Records10

▸BISZONING EXHIBIT V: CERTIFICATION1

04/10/2020321189682Open ↗

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

04/10/2020321189682Open ↗

▸BISVERIFY TAX LOT1

06/27/2022321189682Open ↗

▸BISADDRESS: NEW HOUSE NUMBER APPROVED1

02/14/2017321189682Open ↗

▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1

06/27/2022321189682Open ↗

▸BISZONING DIAGRAM1

05/19/2017321189682Open ↗

▸BISZONING EXHIBIT IV: CERTIFICATION1

04/10/2020321189682Open ↗

▸BISZONING EXHIBIT I: CERTIFICATION1

05/19/2017321189682Open ↗

▸BISZONING EXHIBIT II: CERTIFICATION1

04/10/2020321189682Open ↗

▸BISTAX LOT: TENTATIVE LOT NUMBER ISSUED1

08/26/2020321189682Open ↗

▸Seals & Professional Certifications13

▸DOB NOWDPL-1: Design Professional Seal & Signature7

09/02/2026B00171231-I1Open ↗

09/01/2026B00612437-I1Open ↗

09/01/2026B00612412-I1Open ↗

Showing 3 of 7 on file for this type

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

09/27/2018340635389Open ↗

▸BISAPPLICANT OWNER SIGNATURE1

05/09/2017340480606Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

09/27/2018340635389Open ↗

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1

06/08/2018321189682Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

09/27/2018340635389Open ↗

▸DOB NOWProgress Inspector Seal & Signature1

08/26/2026B00388876-I1Open ↗

▸Trade Schedules & Equipment17

▸BISSCHEDULE B - PLUMBING12

05/25/2022321189682Open ↗

05/03/2022321189682Open ↗

01/11/2022321189682Open ↗

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▸BISSPRINKLER SYSTEMS1

10/20/2022321189682Open ↗

▸BISEQUIPMENT USE APPLICATION/PERMIT1

06/27/2022321189682Open ↗

▸BISEQUIPMENT USE PERMITS1

06/27/2022321189682Open ↗

▸BISFA - FDNY APPROVAL : FD-FAA1

06/01/2022321536370Open ↗

▸BISELECTRIC CUT-OFF1

10/19/2017321515311Open ↗

▸Safety & Tenant Protection11

▸BISSTREET TREE CHECKLIST6

11/16/2022321189682Open ↗

08/19/2021340480606Open ↗

08/26/2020321189682Open ↗

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▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE2

10/19/2017321515311Open ↗

▸BISSTREET TREE SIGNOFF1

12/22/2021321189682Open ↗

▸BISSRO MD ANTI-HARASSMENT CHECKLIST1

10/19/2017321515311Open ↗

▸BISSTREET TREES SITE PLAN1

05/23/2019340480606Open ↗

▸Environmental & Asbestos1

▸BISASBESTOS: CERTIFICATION (DEP ACP5)1

10/19/2017321515311Open ↗

▸Energy Compliance6

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY4

07/07/2022321189682Open ↗

06/27/2022321189682Open ↗

05/19/2017321189682Open ↗

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▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

06/08/2018321189682Open ↗

▸BISAS-BUILT ENERGY ANALYSIS (EN2)1

06/27/2022321189682Open ↗

▸Inspections & Test Reports17

▸BISTECHNICAL REPORT: RESPONSIBILITY8

11/15/2022321189682Open ↗

06/27/2022321189682Open ↗

06/21/2022340635389Open ↗

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▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER3

07/14/2022321189682Open ↗

06/08/2018321189682Open ↗

▸BISHYDRO FLOW TEST LETTER1

05/19/2017321189682Open ↗

▸BISSOIL REPORT1

05/16/2017321189682Open ↗

▸BISTECHNICAL REPORT: SOIL INSPECTION1

05/16/2017321189682Open ↗

▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX1

06/08/2018321189682Open ↗

▸BISHYDRAULIC FLOW CALCULATIONS1

05/19/2017321189682Open ↗

▸BISDEMOLITION (DM) JOB SIGNOFF1

12/22/2021321189682Open ↗

▸Approvals, Objections & Sign-offs25

▸BISSCHEDULE A - OCCUPANCY / USE13

11/10/2022321189682Open ↗

11/07/2022321189682Open ↗

09/16/2022321189682Open ↗

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▸BISLETTERS - SUPPORTING DOCUMENTATION7

03/10/2022321189682Open ↗

02/17/2022321189682Open ↗

10/06/2020321189682Open ↗

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▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST2

07/11/2022340635389Open ↗

06/07/2022321536370Open ↗

▸BISLANDMARKS APPROVAL1

10/19/2017321515311Open ↗

▸BISBPP-8 - Request Items for Builders Pavement Plan Signoff1

08/23/2021340480606Open ↗

▸BISTAP LETTER - DOM SVC : DEP-DOM1

10/19/2017321515311Open ↗

▸Cost, Insurance & Ownership9

▸BISPROJECT-SPECIFIC GL INSURANCE4

10/28/2020321189682Open ↗

06/08/2018321189682Open ↗

01/09/2018321515311Open ↗

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▸BISCOST AFFIDAVIT2

09/27/2018340635389Open ↗

03/03/2017321536370Open ↗

▸BISCOST AFFIDAVIT (FINAL): PW31

06/02/2022321536370Open ↗

▸BISAcord 25 (Acord Certificate of Liability Insurance)1

10/06/2020321189682Open ↗

▸BISPROJECT SPECIFIC GENERAL LIABILITY INSURANCE1

10/06/2020321189682Open ↗

▸Filing & Intake Forms41

▸BISADDITIONAL INFORMATION33

11/14/2022321189682Open ↗

09/19/2022321189682Open ↗

09/09/2022321189682Open ↗

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▸BISBOROUGH INTAKE FORM4

10/28/2020321189682Open ↗

10/26/2020321189682Open ↗

10/06/2020321189682Open ↗

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▸BISEFILING COVER SHEET2

03/03/2017321536370Open ↗

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▸BISEFILING JOB APPLICATION COVER SHEET2

09/27/2018340635389Open ↗

05/09/2017340480606Open ↗

▸Other Documents4

▸BISPLOT DIAGRAM2

10/13/2020321189682Open ↗

02/14/2017321189682Open ↗

▸BISBEST SQUAD - SUPPORTING DOCUMENTATION2

11/01/2017321515311Open ↗