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Primarily 2 family with 1 store or office
2020 AVENUE X
BROOKLYN · BIN 3203608
💬 Discuss this project
1925Year Built
2Stories
S2Building Class
R4Zoning
3,900 sfGross Floor Area
3Units
Rent Stabilized1 Open Violation 0 unresolved · 1 paperwork only ▸FDNY Report ↗
Primarily 2 family with 1 store or office · 2,000 sf lot · 1.95 FAR built · Flood zone X500
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 11p · 2 filings · 6 docs
CellarUnder Construction3p · 1 filing · 13 docs
2 jobs · most recent 05/14/2026
Gas Water/Sanitary
FiledStatusContractorScope
05/14/2026Permit IssuedAMERICAN STANDARD P&H CORGas
06/16/2023——Water/Sanitary
Building Lifecycle
All (31)Filed (4)Permit Issued (2)Violation (13)Special Inspection (12)
05/21/2026
Permit issued — Plumbing
B01397511-S1-PL
05/21/2026
Permit issued — General Construction
B01397511-I1-GC
05/14/2026
Filed — Alteration
FILING PLUMBING WORK TO CAP/REMOVE OIL TANK AND BOILER, INSTALL NEW/RELOCATE GAS APPLIANCES AND NEW GAS METER AS PER PLAN. FILE TO ADDRESS ECB VIOLATION #32091095R. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01397511-S1
05/14/2026
Filed — Alteration
FILING PLUMBING WORK TO CAP/REMOVE OIL TANK AND BOILER, INSTALL NEW/RELOCATE GAS APPLIANCES AND NEW GAS METER AS PER PLAN. FILE TO ADDRESS ECB VIOLATION #32091095R. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01397511-I1
05/12/2026
Special inspection requirement — HVAC-R and service water heating system controls
Chun Feng
05/12/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
05/12/2026
Special inspection requirement — Tenant Protection Plan Compliance
NARESH MAHANGU
05/12/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
05/12/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Chun Feng
05/12/2026
Special inspection requirement — HVAC-R and service water heating equipment
Chun Feng
05/09/2026
Special inspection requirement — Final
Chun Feng
05/09/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Chun Feng
05/09/2026
Special inspection requirement — Tenant Protection Plan Compliance
NARESH MAHANGU
05/09/2026
Special inspection requirement — Energy Code Compliance Inspections
Chun Feng
05/09/2026
Special inspection requirement — Fire-Resistance Rated Construction
Chun Feng
06/30/2023
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
06/30/2023
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
06/16/2023
Filed — Alteration
B00862154-I1
06/16/2023
Filed — Alteration
relocate existing toilets
B00862205-I1
06/13/2023
Special inspection requirement — Tenant Protection Plan Compliance
04/25/2023
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/29/2017
Violation issued (ECB, open)
Boilers
05/17/2017
Violation issued (ECB, closed)
Construction
10/01/2015
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
12/13/2011
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
12/31/2009
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/01/2009
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/03/2008
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/19/2007
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
01/06/2006
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
02/13/2004
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
BIG APPLE DAY CARE INC103/22/2026
GREENLINE BLDG CONSULTANTS203/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
CHUN FENG, ARCHITECT205/14/2026
LESLIE M. GOOD ARCHITECTS206/16/2023
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MERCURY BUILDING ASSOGeneral Contractor107/08/2026
AMERICAN STANDARD P&H CORORP.Plumbing105/23/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NKM ENGINEERING PLLC6244205/14/2026
SQ. ARCH, LLC4802205/14/2026
ACV DESIGN LTD3864106/16/2023
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedAMERICAN STANDARD P&H CORORP.05/21/2026
DOB NOWGeneral ConstructionPermit IssuedMERCURY BUILDING ASSO INC05/21/2026
BISSPISSUEDFIREQUEST CORP04/21/2017
BISPLISSUEDACCESS PLUMBING CORP04/05/2017
▾Special Inspection Requirements (DOB NOW) — 12
DateRequirementInspectorRole
05/12/2026HVAC-R and service water heating system controlsChun Fengenergy_progress
05/12/2026Fire-Resistant Penetrations and JointsChun Fengspecial
05/12/2026Tenant Protection Plan ComplianceNARESH MAHANGUspecial
05/12/2026Energy Code Compliance InspectionsChun Fengprogress
05/12/2026HVAC-R and service water piping design and insulationChun Fengenergy_progress
05/12/2026HVAC-R and service water heating equipmentChun Fengenergy_progress
05/09/2026FinalChun Fengprogress
05/09/2026Fire-Resistant Penetrations and JointsChun Fengspecial
05/09/2026Tenant Protection Plan ComplianceNARESH MAHANGUspecial
05/09/2026Energy Code Compliance InspectionsChun Fengprogress
05/09/2026Fire-Resistance Rated ConstructionChun Fengprogress
06/13/2023Tenant Protection Plan Compliance—special
▾Documents — 41 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/27/2026B00862154-I1Request digital key ↗
08/27/2026B00862205-I1Request digital key ↗
08/17/2026B01397511-S1Request digital key ↗
Showing 3 of 4 on file for this type
▸Applications & Permits4
▸BISPLAN / WORK APPROVAL APPLICATION2
03/20/2017340482463Open ↗
02/15/2017321486682Open ↗
▸BISWORK PERMIT APPLICATION2
04/21/2017340482463Open ↗
04/05/2017340482463Open ↗
▸Zoning, Tax Lot & Property Records1
▸BISFLOOD ZONE DESIGN CERTIFICATION1
03/20/2017340482463Open ↗
▸Seals & Professional Certifications16
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/27/2026B00862154-I1Open ↗
08/17/2026B01397511-S1Open ↗
08/17/2026B01397511-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
09/23/2026B01397511-S1Open ↗
09/23/2026B01397511-S1Open ↗
09/03/2026B01397511-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature3
09/23/2026B01397511-S1Open ↗
09/23/2026B01397511-S1Open ↗
09/03/2026B01397511-I1Open ↗
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION2
03/10/2020340482463Open ↗
02/15/2017321486682Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT1
03/20/2017340482463Open ↗
▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1
03/20/2017340482463Open ↗
▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1
03/20/2017340482463Open ↗
▸Trade Schedules & Equipment2
▸BISFA - FDNY APPROVAL : FD-FAA1
12/26/2017321486682Open ↗
▸BISSCHEDULE B - PLUMBING1
03/20/2017340482463Open ↗
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/27/2026B00862154-I1Open ↗
08/17/2026B01397511-S1Open ↗
08/17/2026B01397511-I1Open ↗
Showing 3 of 4 on file for this type
▸BISASBESTOS: CERTIFICATION (DEP ACP5)2
03/20/2017340482463Open ↗
02/15/2017321486682Open ↗
▸Inspections & Test Reports4
▸BISTECHNICAL REPORT: RESPONSIBILITY3
04/05/2017340482463Open ↗
03/20/2017340482463Open ↗
03/20/2017340482463Open ↗
▸BISHYDRAULIC FLOW CALCULATIONS1
03/20/2017340482463Open ↗
▸Cost, Insurance & Ownership2
▸BISCOST AFFIDAVIT2
03/20/2017340482463Open ↗
02/15/2017321486682Open ↗
▸Filing & Intake Forms2
▸BISEFILING JOB APPLICATION COVER SHEET1
03/20/2017340482463Open ↗
▸BISEFILING COVER SHEET1
02/15/2017321486682Open ↗