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Primarily 5-6 family with 1 store or office
231 20 STREET
BROOKLYN · BIN 3009201
💬 Discuss this project
1933Year Built
5Stories
S5Building Class
R6AZoning
9,689 sfGross Floor Area
7Units
1 Open Violation 0 unresolved · 1 paperwork only ▸
Primarily 5-6 family with 1 store or office · Owner of record: PERPETUAL COMPANY LLC · 3,474 sf lot · 2.79 FAR built · Flood zone X
Locations of Work
Fire Protection
Floor 41p · 1 filing · 3 docs
Floor 3
Floor 21p · 1 filing · 3 docs
Floor 1
Mezzanine1p · 1 filing · 3 docs
Cellar1p · 1 filing · 3 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
PERPETUAL COMPANY3707/08/2026
DESIGN TECH CONSTRUCT COR1103/22/2026
JOHN J PALANCA.DESIGN TEC203/22/2026
DESIGN TECH CONSTRUC COV103/22/2026
DESIGN TECH CONSTRUCTION103/22/2026
DESIGN TECH CONST COR203/22/2026
J G CONSTRUCTION SRVCS203/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SYED ENGINEERING, P.C.110/26/2020
GUTH DECONZO CONSULTING ENGINEERS,109/10/2020
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
WILLIAM VITACCO ASSOCIATES103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
A + SPRINKLER CORPFire Protection307/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
GUTH DECONZO CONSULTING E1210109/10/2020
Building Lifecycle
All (33)Filed (2)Permit Issued (3)Signed Off (1)Violation (26)Inspection (1)
04/11/2024
Signed off — Alteration
B00371210-I1
01/19/2024
Inspection — Certified Sprinkler-SP-Fixtures-Finish
Certified
View inspection ↗
08/02/2023
Permit issued — Sprinklers
B00371210-I1-EW-SP
02/10/2022
Permit issued — Sprinklers
B00371210-I1-EW-SP
09/15/2021
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
09/15/2021
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
09/09/2021
Violation issued (ECB, closed)
Construction
06/21/2021
Violation issued (ECB, closed)
Construction
06/21/2021
Violation issued (ECB, closed)
Unknown
06/21/2021
Violation issued (ECB, closed)
Construction
06/21/2021
Violation issued (ECB, closed)
Construction
06/14/2021
Permit issued — Sprinklers
B00371210-I1-EW-SP
10/26/2020
Filed — Alteration
INSTALLATION OF PIPE SCAFFOLDING
B00405285-I1
09/16/2020
Violation issued (ECB, closed)
Construction
09/16/2020
Violation issued (ECB, closed)
Construction
09/16/2020
Violation issued (ECB, closed)
Construction
09/16/2020
Violation issued (ECB, closed)
Construction
09/10/2020
Filed — Alteration
B00371210-I1
12/23/2019
Violation issued (ECB, closed)
Construction
12/23/2019
Violation issued (ECB, closed)
Construction
12/11/2019
Violation issued (ECB, closed)
Signs
12/11/2019
Violation issued (ECB, closed)
Construction
10/18/2016
Violation issued (ECB, closed)
Construction
08/24/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/24/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/24/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/24/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/24/2016
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
05/26/2016
Violation issued (ECB, open)
Construction
05/26/2016
Violation issued (ECB, closed)
Construction
05/26/2016
Violation issued (ECB, closed)
Construction
05/26/2016
Violation issued (ECB, closed)
Construction
05/26/2016
Violation issued (ECB, closed)
Construction
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersSigned-offA + SPRINKLER CORP08/02/2023
DOB NOWSprinklersSigned-offA + SPRINKLER CORP02/10/2022
DOB NOWSprinklersSigned-offA + SPRINKLER CORP06/14/2021
BISPLISSUEDA. M. PLUMBING COMPANY07/13/2023
BIS—ISSUEDDESIGN TECH CONSTRUCT COR06/27/2023
BISEQISSUEDDESIGN TECH CONSTRUCT COR04/19/2021
BIS—ISSUEDDESIGN TECH CONSTRUCT COR03/12/2021
BISEQISSUEDDYNAMIC INSTALLATION CORP.09/25/2020
BISEQISSUEDDESIGN TECH CONSTRUCT COR03/27/2020
BISEQISSUEDDESIGN TECH CONSTRUCT COR03/24/2020
BISEQISSUEDDYNAMIC INSTALLATION CORP.09/04/2019
BISEQISSUEDDESIGN TECH CONSTRUCT COR03/20/2019
BISEQISSUEDDESIGN TECH CONSTRUCT COR03/20/2019
BIS—ISSUEDDESIGN TECH CONSTRUCT COR03/20/2019
BISEQISSUEDDYNAMIC INSTALLATION CORP.08/16/2018
BISEQISSUEDDESIGN TECH CONSTRUCT COR03/21/2018
BIS—ISSUEDDESIGN TECH CONSTRUCT COR03/01/2018
BISEQISSUEDDESIGN TECH CONSTRUCT COR02/28/2018
BISEQISSUEDDYNAMIC INSTALLATION CORP.08/11/2017
BIS—ISSUEDDESIGN TECH CONSTRUCT COR07/21/2016
BISEQISSUEDDESIGN TECH CONSTRUCT COR07/21/2016
BISEQISSUEDDESIGN TECH CONSTRUCT COR05/17/2016
BISEQISSUEDDYNAMIC INSTALLATION CORP.03/30/2016
BISEQISSUEDDESIGN TECH CONSTRUCT COR01/27/2016
BIS—ISSUEDDESIGN TECH CONSTRUCT COR06/22/2015
BIS—ISSUEDDESIGN TECH CONSTRUCT COR01/15/2015
BISEQISSUEDDESIGN TECH CONSTRUCT COR01/14/2015
1 project · most recent 06/14/2024
General Wiring
FiledStatusContractorScope
06/14/2024CompleteSUNBIRD ELECTRICAL CONTRGeneral Wiring
1 project · most recent 10/26/2020
Scaffold
FiledStatusContractorScope
10/26/2020——Scaffold
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
01/19/2024Certified Sprinkler-SP-Fixtures-FinishCertifiedView ↗
▾Documents — 212 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch - Sprinkler1
09/02/2026B00371210-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Supported Scaffold1
09/02/2026B00405285-I1Request digital key ↗
▸Applications & Permits62
▸BISWORK PERMIT APPLICATION33
07/14/2023320593354Open ↗
07/07/2023320593354Open ↗
06/29/2023320593354Open ↗
Showing 3 of 33 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION29
10/24/2025340112318Open ↗
06/26/2025320593354Open ↗
04/01/2025320593354Open ↗
Showing 3 of 29 on file for this type
▸Zoning, Tax Lot & Property Records2
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1
02/19/2024320593354Open ↗
▸BISZoning Diagram (ZD1)1
04/30/2014320593354Open ↗
▸Seals & Professional Certifications15
▸BISTECHNICAL REPORT: RESPONSIBILITY-CERTIFICATION6
04/30/2014320593354Open ↗
04/30/2014320593354Open ↗
04/30/2014320593354Open ↗
Showing 3 of 6 on file for this type
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY2
06/08/2016340387959Open ↗
03/28/2016340364661Open ↗
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2
06/08/2016340387959Open ↗
03/28/2016340364661Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT2
06/08/2016340387959Open ↗
03/28/2016340364661Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature2
09/02/2026B00405285-I1Open ↗
08/13/2026B00371210-I1Open ↗
▸BISApplicant / Owner Signature1
02/12/2014340112318Open ↗
▸Trade Schedules & Equipment15
▸BISSCHEDULE B - PLUMBING11
01/04/2024320593354Open ↗
12/29/2023320593354Open ↗
12/13/2023320593354Open ↗
Showing 3 of 11 on file for this type
▸BISHVAC & SERVICE WATER HEATING EQUIPMENT1
12/07/2025320593354Open ↗
▸BISHVAC & SERVICE WATER HEATING SYSTEM CONTROLS1
12/07/2025320593354Open ↗
▸BISSCHEDULE C - HEATING & COMBUSTION EQUIPMENT1
04/24/2014320593354Open ↗
▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1
09/03/2025320593354Open ↗
▸Safety & Tenant Protection3
▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1
01/24/2015320593354Open ↗
▸BISSTREET TREES: RECEIPT OF STREET TREES SITE PLAN1
09/24/2014320593354Open ↗
▸BISST-1 Street Tree Checklist1
04/30/2014320593354Open ↗
▸Environmental & Asbestos3
▸BISACP5 ASBESTOS: CERTIFICATION (DEP ACP5)2
04/24/2014320593354Open ↗
Showing 1 of 2 on file for this type
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/13/2026B00371210-I1Open ↗
▸Energy Compliance10
▸BISINTERIOR LIGHTING POWER1
12/07/2025320593354Open ↗
▸BIS* DUCT LEAKAGE TESTING1
12/07/2025320593354Open ↗
▸BISFENESTRATION U-FACTOR & PRODUCT RATING1
12/07/2025320593354Open ↗
▸BISFENESTRATION AREAS1
12/07/2025320593354Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY1
09/24/2014320593354Open ↗
▸BISINSULATION PLACEMENT & R VALUES1
12/07/2025320593354Open ↗
▸BISLIGHTING IN DWELLING UNITS1
12/07/2025320593354Open ↗
▸BISENERGY CODE COMPLIANCE INSPECTIONS1
12/07/2025320593354Open ↗
▸BISLIGHTING CONTROLS1
12/07/2025320593354Open ↗
▸BIS* HVAC INSULATION AND SEALING1
12/07/2025320593354Open ↗
▸Inspections & Test Reports21
▸BISTECHNICAL REPORT: RESPONSIBILITY8
05/24/2023340387959Open ↗
05/24/2023340387959Open ↗
11/22/2021320593354Open ↗
Showing 3 of 8 on file for this type
▸BISTECHNICAL REPORT: CONCRETE DESIGN MIX2
01/24/2015320593354Open ↗
01/24/2015320593354Open ↗
▸BISSTRUCTURAL STABILITY - ALTERATIONS OF EXISTING BUILDINGS1
12/07/2025320593354Open ↗
▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1
12/07/2025320593354Open ↗
▸BISFIRE-RESISTIVE RATED CONSTRUCTION1
12/07/2025320593354Open ↗
▸BIS* EXIT SIGNS1
12/07/2025320593354Open ↗
▸BISSTRUCTURAL STEEL - HIGH STRENGTH BOLTING1
12/07/2025320593354Open ↗
▸BISSTRUCTURAL STEEL - WELDING1
12/07/2025320593354Open ↗
▸BISHYDRO FLOW TEST LETTER1
06/24/2014340112318Open ↗
▸BISSoil Report1
04/30/2014320593354Open ↗
▸BISTECHNICAL REPORT: CONCRETE/TEST CYLINDER1
01/24/2015320593354Open ↗
▸BISTECHNICAL REPORT: SOIL INSPECTION1
04/30/2014320593354Open ↗
▸BISMECHANICAL SYSTEMS1
12/07/2025320593354Open ↗
▸Approvals, Objections & Sign-offs13
▸BISLETTERS - SUPPORTING DOCUMENTATION6
02/17/2021320593354Open ↗
06/16/2016340387959Open ↗
01/24/2015320593354Open ↗
Showing 3 of 6 on file for this type
▸BISSCHEDULE A - OCCUPANCY / USE4
11/05/2020320593354Open ↗
10/26/2020320593354Open ↗
10/07/2020320593354Open ↗
Showing 3 of 4 on file for this type
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1
05/25/2023340387959Open ↗
▸BISFINAL1
05/24/2023340387959Open ↗
▸BISCCD1-Construction Code Determination1
04/24/2014320593354Open ↗
▸Cost, Insurance & Ownership16
▸BISPROJECT-SPECIFIC GL INSURANCE9
06/29/2023320593354Open ↗
03/16/2021320593354Open ↗
02/17/2021320593354Open ↗
Showing 3 of 9 on file for this type
▸BISCOST AFFIDAVIT4
03/31/2025320593354Open ↗
04/30/2014320593354Open ↗
04/30/2014320593354Open ↗
Showing 3 of 4 on file for this type
▸BISAcord 25 (Acord Certificate of Liability Insurance)2
03/16/2021320593354Open ↗
01/24/2015320593354Open ↗
▸BISCIVIL PENALTY AFFIDAVIT/REQUEST1
02/17/2021320593354Open ↗
▸Filing & Intake Forms29
▸BISBOROUGH INTAKE FORM12
06/29/2023320593354Open ↗
06/28/2023320593354Open ↗
04/20/2021320593354Open ↗
Showing 3 of 12 on file for this type
▸BISADDITIONAL INFORMATION10
05/15/2024320593354Open ↗
05/15/2024320593354Open ↗
05/15/2024320593354Open ↗
Showing 3 of 10 on file for this type
▸BISeFiling Job Application Cover Sheet7
04/24/2014320593354Open ↗
04/24/2014320593354Open ↗
04/24/2014320593354Open ↗
Showing 3 of 7 on file for this type
▸Other Documents9
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION5
07/22/2016320593354Open ↗
03/28/2016340364661Open ↗
07/06/2015320593354Open ↗
Showing 3 of 5 on file for this type
▸BISVESTIBULES1
12/07/2025320593354Open ↗
▸BISMAINTENANCE INFORMATION1
12/07/2025320593354Open ↗
▸BISPERMANENT CERTIFICATE1
12/07/2025320593354Open ↗
▸BISUnknown1
12/23/2020320593354Open ↗