One family attached or semi-detached

321A 4 STREET

BROOKLYN · BIN 3021118

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1901Year Built

3Stories

A5Building Class

R6BZoning

—Gross Floor Area

1Units

0 Open ViolationsFDNY Report ↗

One family attached or semi-detached · 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
ONE SLOPE LLC 11-13	4	03/21/2026

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
SIMPLESTRUCT NY	1	04/06/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
SUNNYSIDE MASONRY INC	General Contractor	1	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
STRACAR SPECIAL INSPECTIO	229	1	04/06/2026

Building Lifecycle

All (5)Filed (1)Permit Issued (1)Violation (1)Special Inspection (2)

04/13/2026

Permit issued — General Construction

B01383014-I1-GC-CX

04/06/2026

Filed — Alteration

Extension of elevated deck at rear (exterior patio)

B01383014-I1

04/04/2026

Special inspection requirement — Structural Steel - Details

MIRO Stracar

04/04/2026

Special inspection requirement — Final

MIRO Stracar

10/04/2018

Violation issued (ECB, closed)

Construction

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	General Construction	Signed-off	SUNNYSIDE MASONRY INC	04/13/2026
BIS	—	ISSUED	E & E CONTRACTING NY CORP	05/01/2017
BIS	PL	ISSUED	PLBG P & H INC	01/05/2017
BIS	—	ISSUED	SK ONE CONSTRUCTION INC	06/08/2016
BIS	PL	ISSUED	TOP DOG PLBG & HTG CORP	02/02/2016
BIS	—	ISSUED	SK ONE CONSTRUCTION INC	01/28/2016
BIS	—	ISSUED	SK ONE CONSTRUCTION INC	01/27/2016
BIS	—	ISSUED	SK ONE CONSTRUCTION INC	11/23/2015
BIS	—	ISSUED	SK ONE CONSTRUCTION INC	11/23/2015
BIS	EQ	ISSUED	SK ONE CONSTRUCTION INC	11/23/2015
BIS	EQ	ISSUED	LAKHI GENERAL CONTRACTOR	10/29/2015
BIS	EQ	ISSUED	LAKHI GENERAL CONTRACTOR	10/29/2015
BIS	OT	ISSUED	SK ONE CONSTRUCTION INC	08/24/2015
BIS	EQ	ISSUED	SK ONE CONSTRUCTION INC	08/24/2015
BIS	OT	ISSUED	PINE BUILDERS CORP	02/04/2015
BIS	EQ	ISSUED	PINE BUILDERS CORP	02/04/2015
BIS	EQ	ISSUED	GREENLINE DEVELOPERS LLC	12/24/2013
BIS	OT	ISSUED	GREENLINE DEVELOPERS LLC	12/24/2013

1 project · most recent 12/11/2018

Filed	Status	Contractor	Scope
12/11/2018	Complete	RIVIERA ELECTRIC CORP	1 meters, 1 new_meters

1 project · most recent 04/06/2026

Steel Concrete

Filed	Status	Contractor	Scope
04/06/2026	Signed-off	SUNNYSIDE MASONRY INC	Steel, Concrete

▾Special Inspection Requirements (DOB NOW) — 2

Date	Requirement	Inspector	Role
04/04/2026	Structural Steel - Details	MIRO Stracar	special
04/04/2026	Final	MIRO Stracar	progress

▾Documents — 153 on file (BIS + DOB NOW)

▸Plans & Drawings1

▸DOB NOWPlans/Sketch1

08/17/2026B01383014-I1Request digital key ↗

▸Applications & Permits31

▸BISPLAN / WORK APPROVAL APPLICATION18

01/17/2019320857293Open ↗

12/10/2018320857293Open ↗

08/29/2018320857293Open ↗

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▸BISWORK PERMIT APPLICATION12

05/03/2017320908194Open ↗

01/11/2017320908194Open ↗

02/03/2016320908194Open ↗

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▸BISCERTIFICATE OF OCCUPANCY: APPLICATION1

06/18/2018320908194Open ↗

▸Zoning, Tax Lot & Property Records5

▸BISZONING DIAGRAM2

01/17/2017320908194Open ↗

11/03/2015320908194Open ↗

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

09/04/2015320908194Open ↗

▸BISADDRESS: NEW HOUSE NUMBER APPROVED1

09/04/2015320908194Open ↗

▸BISZONING EXHIBIT I: CERTIFICATION1

09/04/2015320908194Open ↗

▸Seals & Professional Certifications26

▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION11

08/15/2018340320067Open ↗

08/15/2018340320058Open ↗

07/05/2018320908194Open ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT4

10/28/2015340320058Open ↗

10/28/2015340320067Open ↗

10/28/2014321013292Open ↗

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▸BISPROFESSIONAL CERTIFIED CHECKLIST3

07/23/2015321013292Open ↗

10/28/2014321013292Open ↗

12/31/2013320857293Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2

10/28/2015340320058Open ↗

10/28/2015340320067Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2

10/28/2015340320058Open ↗

10/28/2015340320067Open ↗

▸BISProfessional and Owner Certification (POC3)1

07/23/2015321013292Open ↗

▸DOB NOWDPL-1: Design Professional Seal & Signature1

08/17/2026B01383014-I1Open ↗

▸DOB NOWProgress Inspector Seal & Signature1

08/28/2026B01383014-I1Open ↗

▸DOB NOWSpecial Inspector Seal & Signature1

08/28/2026B01383014-I1Open ↗

▸Trade Schedules & Equipment8

▸BISSCHEDULE B - PLUMBING5

02/01/2018320908194Open ↗

01/09/2017320908194Open ↗

12/19/2016320908194Open ↗

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▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2

07/17/2015321013292Open ↗

10/28/2014321013292Open ↗

▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1

01/17/2019320908194Open ↗

▸Safety & Tenant Protection5

▸BISSTREET TREE CHECKLIST2

10/20/2015320908194Open ↗

09/04/2015320908194Open ↗

▸BISEXCAVATION OR DEMOLITION: 5-DAY NOTICE2

12/01/2015320908194Open ↗

▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1

12/01/2015320908194Open ↗

▸Environmental & Asbestos3

▸BISASBESTOS: CERTIFICATION (DEP ACP5)3

09/04/2015320908194Open ↗

10/28/2014321013292Open ↗

12/31/2013320857293Open ↗

▸Energy Compliance8

▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS4

07/05/2018320908194Open ↗

07/23/2015321013292Open ↗

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▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY2

11/03/2015320908194Open ↗

09/04/2015320908194Open ↗

▸BISTR8: Energy Code Progress Inspections1

10/28/2014321013292Open ↗

▸BISAS-BUILT ENERGY ANALYSIS1

07/09/2018320908194Open ↗

▸Inspections & Test Reports16

▸BISTECHNICAL REPORT: RESPONSIBILITY7

10/28/2015340320058Open ↗

10/20/2015320908194Open ↗

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▸BISINSPECTION REPORT - SUPPORTING DOCUMENTATION4

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▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER2

08/02/2018320908194Open ↗

12/01/2015320908194Open ↗

▸BISTECHNICAL REPORT: SOIL INSPECTION1

09/04/2015320908194Open ↗

▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX1

12/01/2015320908194Open ↗

▸BISSOIL REPORT1

09/04/2015320908194Open ↗

▸Approvals, Objections & Sign-offs15

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST5

01/18/2019320908194Open ↗

01/17/2019320908194Open ↗

11/29/2018320857293Open ↗

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▸BISLETTERS - SUPPORTING DOCUMENTATION4

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05/09/2016320908194Open ↗

11/03/2015320908194Open ↗

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▸BISSCHEDULE A - OCCUPANCY / USE3

04/12/2016320908194Open ↗

10/14/2015320908194Open ↗

09/04/2015320908194Open ↗

▸BISADMINISTRATIVE OBJECTIONS2

10/28/2014321013292Open ↗

12/31/2013320857293Open ↗

▸BISSUPERSEDING LETTER1

01/11/2017320908194Open ↗

▸Cost, Insurance & Ownership9

▸BISCOST AFFIDAVIT6

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▸BISPROJECT-SPECIFIC GL INSURANCE2

05/03/2017320908194Open ↗

12/01/2015320908194Open ↗

▸BISAcord 25 (Acord Certificate of Liability Insurance)1

05/03/2017320908194Open ↗

▸Filing & Intake Forms23

▸BISBOROUGH INTAKE FORM10

01/18/2019320908194Open ↗

01/17/2019320908194Open ↗

01/17/2019320857293Open ↗

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▸BISADDITIONAL INFORMATION7

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07/06/2018320908194Open ↗

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▸BISEFILING COVER SHEET4

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10/28/2014321013292Open ↗

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▸BISEFILING JOB APPLICATION COVER SHEET2

10/28/2015340320058Open ↗

10/28/2015340320067Open ↗

▸Other Documents3

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1

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▸BISCONSTRUCTION - SUPPORTING DOCUMENTATION1

10/28/2015340320067Open ↗

▸BISPLOT DIAGRAM1

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