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Walk-up apt, over six families with stores
23 AVENUE B
MANHATTAN · BIN 1090905
💬 Discuss this project
1900Year Built
6Stories
C7Building Class
R7AZoning
8,398 sfGross Floor Area
9Units
Rent Stabilized1 Open Violation ▸FDNY Report ↗
Walk-up apt, over six families with stores · Owner of record: 21/23 AVENUE B REALTY LLC · 2,106 sf lot · 3.99 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectricalMechanicalPlumbingFire ProtectionGeneral
Roof3p · 3 filings · 20 docs
Bulkhead1p · 1 filing · 13 docs
Floor 61p · 1 filing · 13 docs
Floor 51p · 2 filings · 20 docs
Floor 4
Floor 32p · 2 filings · 20 docs
Floor 22p · 1 filing · 20 docs
Floor 1
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
371 EAST 10 REALTY3707/08/2026
MNK ENTERPRISES1407/08/2026
BOUTIQ104/09/2026
21 23 AVENUE B REALTY1403/22/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
YOU GAO103/24/2026
A&D ENGINEERING, PLLC709/30/2022
T. LAPORTA ARCHITECT312/29/2021
ASHRAF CORP209/08/2021
GREEN DESIGN112/24/2020
D&B ENGINEERS AND ARCHITECTS, P.C.111/22/2019
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
JM ZONING, LLC.1603/21/2026
A1 EXPEDITING SERVICE CORP.303/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MNK ENTERPRISES LLCGeneral Contractor1007/08/2026
HONEST & QUALITY CORPGeneral Contractor907/08/2026
ARIANA CONTRACTING INCFire Protection207/08/2026
DELTA POWER ELECTRICALElectrical103/22/2026
ARIANA CONTRACTING INCPlumbing107/08/2026
NEPTUNE SIGNS AWNINGSScaffold107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
YOU GAO9407103/24/2026
SEAD ENGINEERING PC2665709/30/2022
Building Lifecycle
All (84)Filed (15)Permit Issued (13)Signed Off (6)Violation (8)Objection (12)Special Inspection (30)
03/27/2026
Permit issued — Sign
M01374519-I1-SG
03/24/2026
Filed — Alteration
ERECT AN ILLUMINATED SIGN ON WALL.NOT WITHIN VIEW OF ARTERIAL HIGHWAY OR PUBLIC PARK 1/2 ACRE OR MORE. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M01374519-I1
03/20/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
You Gao
03/20/2026
Special inspection requirement — Final
You Gao
10/31/2025
Violation issued (ECB, closed)
Construction
02/08/2023
Signed off — Alteration
PAA FILED TO ADD CAP AND REMOVE FOR REDUCED APARTMENTS.
M00207128-I1
10/11/2022
Signed off — Alteration
HEREWITH FILING MECHANICAL WORK IN CONJUNCTION WITH ALT I
M00207125-I1
10/04/2022
Special inspection requirement — HVAC and service water heating equipment
INHWAN CHANG
10/04/2022
Special inspection requirement — HVAC insulation and sealing
INHWAN CHANG
10/04/2022
Special inspection requirement — Final
YUNHO LEE
10/04/2022
Special inspection requirement — Fire-Resistance Rated Construction
INHWAN CHANG
10/04/2022
Special inspection requirement — Energy Code Compliance Inspections
INHWAN CHANG
10/04/2022
Special inspection requirement — Heating Systems
INHWAN CHANG
10/04/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
INHWAN CHANG
10/04/2022
Special inspection requirement — Mechanical Systems
INHWAN CHANG
10/04/2022
Special inspection requirement — Permanent certificate
INHWAN CHANG
10/04/2022
Special inspection requirement — Maintenance information
INHWAN CHANG
10/04/2022
Special inspection requirement — HVAC and service water heating system controls
INHWAN CHANG
09/30/2022
Filed — Alteration
HEREWITH FILING MECHANICAL WORK IN CONJUNCTION WITH ALT I
M00207125-P3
09/21/2022
Special inspection requirement — HVAC insulation and sealing
INHWAN CHANG
09/21/2022
Special inspection requirement — Fire-Resistant Penetrations and Joints
INHWAN CHANG
09/21/2022
Special inspection requirement — Heating Systems
INHWAN CHANG
09/21/2022
Special inspection requirement — Mechanical Systems
INHWAN CHANG
09/21/2022
Special inspection requirement — Energy Code Compliance Inspections
INHWAN CHANG
09/21/2022
Special inspection requirement — Final
YUNHO LEE
09/21/2022
Special inspection requirement — Fire-Resistance Rated Construction
INHWAN CHANG
09/21/2022
Special inspection requirement — HVAC and service water heating system controls
INHWAN CHANG
09/21/2022
Special inspection requirement — Maintenance information
INHWAN CHANG
09/21/2022
Special inspection requirement — Permanent certificate
INHWAN CHANG
09/21/2022
Special inspection requirement — HVAC and service water heating equipment
INHWAN CHANG
09/09/2022
Special inspection requirement — Sprinkler Systems
INHWAN CHANG
09/06/2022
Objection resolved — Addressed
09/01/2022
Signed off — Alteration
Structural work in conjunction with alteration type 1 application.
M00240133-I1
08/30/2022
Objection raised — Other
08/26/2022
Filed — Alteration
PAA FILED TO ADD CAP AND REMOVE FOR REDUCED APARTMENTS.
M00207128-P3
08/24/2022
Special inspection requirement — Sprinkler Systems
INHWAN CHANG
08/19/2022
Signed off — Alteration
M00221184-I1
08/16/2022
Signed off — Alteration
M00444839-I1
08/11/2022
Permit issued — Mechanical Systems
M00207125-I1-MS
08/11/2022
Permit issued — Structural
M00240133-I1-ST
08/09/2022
Signed off — Alteration
INSTALLATION OF TEMPORARY (54'-60') HIGH PIPE SCAFFOLD AT VARIOUS LEVELS FOR FACADE REPAIR WORK AS PER PLAN. NO CHANGE IN USE EGRESS OR OCCUPANCY,PIPE SCAFFOLD SHALL COMPLY WITH CHAPTER#33 OF 2014 THE NY BUILDING CODE.
M00445479-I1
06/08/2022
Permit issued — Supported Scaffold
M00445479-I1-SF
06/08/2022
Permit issued — Sidewalk Shed
M00444839-I1-SH
05/12/2022
Filed — Alteration
HEREWITH FILING MECHANICAL WORK IN CONJUNCTION WITH ALT I
M00207125-P1
05/06/2022
Special inspection requirement — Permanent certificate
05/06/2022
Special inspection requirement — HVAC insulation and sealing
05/06/2022
Special inspection requirement — HVAC and service water heating equipment
05/06/2022
Special inspection requirement — Final
05/04/2022
Filed — Alteration
PAA FILED TO ADD CAP AND REMOVE FOR REDUCED APARTMENTS.
M00207128-P2
02/11/2022
Permit issued — Plumbing
M00207128-I1-EW-SP
12/29/2021
Filed — Alteration
M00221184-P2
12/23/2021
Permit issued — Construction Fence
M00221184-I1-FN
09/08/2021
Filed — Alteration
INSTALLATION OF TEMPORARY (54'-60') HIGH PIPE SCAFFOLD AT VARIOUS LEVELS FOR FACADE REPAIR WORK AS PER PLAN. NO CHANGE IN USE EGRESS OR OCCUPANCY,PIPE SCAFFOLD SHALL COMPLY WITH CHAPTER#33 OF 2014 THE NY BUILDING CODE.
M00445479-P1
08/31/2021
Permit issued — Sprinklers
M00207128-I1-EW-SP
07/09/2021
Violation issued (ECB, closed)
Construction
07/09/2021
Violation issued (ECB, closed)
Construction
07/06/2021
Permit issued — Sprinklers
M00207128-I1-PL
04/16/2021
Violation issued (HPD, closed)
A
03/24/2021
Filed — Alteration
PAA FILED TO ADD CAP AND REMOVE FOR REDUCED APARTMENTS.
M00207128-P1
02/18/2021
Permit issued — Construction Fence
M00221184-I1-FN
Latest 60 of 84 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSignPermit IssuedDESTHERS, JOSEPH03/27/2026
DOB NOWMechanical SystemsSigned-offHONEST QUALITY08/11/2022
DOB NOWStructuralSigned-offHONEST QUALITY08/11/2022
DOB NOWSupported ScaffoldSigned-offMNK ENTERPRISES LLC06/08/2022
DOB NOWSidewalk ShedSigned-offMNK ENTERPRISES LLC06/08/2022
DOB NOWPlumbingSigned-offARIANA CONTRACTING INC02/11/2022
DOB NOWConstruction FenceSigned-offHONEST QUALITY12/23/2021
DOB NOWSprinklersSigned-offARIANA CONTRACTING INC08/31/2021
DOB NOWSprinklersSigned-offARIANA CONTRACTING INC07/06/2021
DOB NOWConstruction FenceSigned-offHONEST QUALITY02/18/2021
DOB NOWSupported ScaffoldSigned-offMNK ENTERPRISES LLC01/05/2021
DOB NOWSidewalk ShedSigned-offMNK ENTERPRISES LLC12/29/2020
DOB NOWConstruction FenceSigned-offHONEST QUALITY11/04/2020
BIS—ISSUEDHONEST & QUALITY CORP06/09/2023
BIS—ISSUEDHONEST & QUALITY CORP06/21/2022
BIS—ISSUEDHONEST & QUALITY CORP02/17/2022
BIS—ISSUEDHONEST & QUALITY CORP02/17/2021
BIS—ISSUEDHONEST & QUALITY CORP07/01/2020
BIS—ISSUEDHONEST & QUALITY CORP07/01/2020
5 projects · most recent 04/01/2026
General Wiring
FiledStatusContractorScope
04/01/2026CompleteASKO ELEC CONST & MAIN IN—
12/01/2022CompletePOWER SURGE ELECTRIC, INCGeneral Wiring
07/11/2022CompleteDELTA POWER ELECTRICALGeneral Wiring
06/09/2022CompleteDELTA POWER ELECTRICAL—
12/24/2020CompleteRICHARD NEU—
▾Special Inspection Requirements (DOB NOW) — 51
DateRequirementInspectorRole
03/20/2026Structural Stability – Alterations of existing buildingsYou Gaospecial
03/20/2026FinalYou Gaoprogress
10/04/2022HVAC and service water heating equipment INHWAN CHANGenergy_progress
10/04/2022HVAC insulation and sealing INHWAN CHANGenergy_progress
10/04/2022FinalYUNHO LEEprogress
10/04/2022Fire-Resistance Rated ConstructionINHWAN CHANGprogress
10/04/2022Energy Code Compliance InspectionsINHWAN CHANGprogress
10/04/2022Heating SystemsINHWAN CHANGspecial
10/04/2022Fire-Resistant Penetrations and JointsINHWAN CHANGspecial
10/04/2022Mechanical SystemsINHWAN CHANGspecial
10/04/2022Permanent certificateINHWAN CHANGenergy_progress
10/04/2022Maintenance informationINHWAN CHANGenergy_progress
10/04/2022HVAC and service water heating system controls INHWAN CHANGenergy_progress
09/21/2022HVAC insulation and sealing INHWAN CHANGenergy_progress
09/21/2022Fire-Resistant Penetrations and JointsINHWAN CHANGspecial
09/21/2022Heating SystemsINHWAN CHANGspecial
09/21/2022Mechanical SystemsINHWAN CHANGspecial
09/21/2022Energy Code Compliance InspectionsINHWAN CHANGprogress
09/21/2022FinalYUNHO LEEprogress
09/21/2022Fire-Resistance Rated ConstructionINHWAN CHANGprogress
09/21/2022HVAC and service water heating system controls INHWAN CHANGenergy_progress
09/21/2022Maintenance informationINHWAN CHANGenergy_progress
09/21/2022Permanent certificateINHWAN CHANGenergy_progress
09/21/2022HVAC and service water heating equipment INHWAN CHANGenergy_progress
09/09/2022Sprinkler SystemsINHWAN CHANGspecial
Latest 25 of 51.
▾Documents — 226 on file (BIS + DOB NOW)
▸Plans & Drawings19
▸DOB NOWPlans/Sketch - Sprinkler4
09/04/2026M00207128-P2Request digital key ↗
09/04/2026M00207128-P1Request digital key ↗
09/04/2026M00207128-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸DOB NOWPlans/Sketch - Plumbing4
09/04/2026M00207128-P2Request digital key ↗
09/04/2026M00207128-I1Request digital key ↗
08/15/2026M00207128-P1Request digital key ↗
Showing 3 of 4 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems3
09/05/2026M00207125-P1Request digital key ↗
09/05/2026M00207125-P3Request digital key ↗
08/15/2026M00207125-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Construction Fence3
09/03/2026M00221184-P2Request digital key ↗
09/03/2026M00221184-I1Request digital key ↗
08/15/2026M00221184-P1Request digital key ↗
▸DOB NOWPlans/Sketch - Supported Scaffold2
09/03/2026M00445479-I1Request digital key ↗
08/15/2026M00445479-P1Request digital key ↗
▸DOB NOWPlans/Sketch1
08/18/2026M01374519-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Sidewalk Shed1
09/04/2026M00444839-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Structural1
08/14/2026M00240133-I1Request digital key ↗
▸Applications & Permits32
▸BISPLAN / WORK APPROVAL APPLICATION19
02/25/2025121206033Open ↗
06/26/2024121206033Open ↗
11/16/2023121206033Open ↗
Showing 3 of 19 on file for this type
▸BISWORK PERMIT APPLICATION9
06/22/2022121206033Open ↗
02/18/2022121206033Open ↗
07/02/2020121206033Open ↗
Showing 3 of 9 on file for this type
▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2
11/29/2023121206033Open ↗
07/20/2022121206033Open ↗
▸BISTEMPORARY FENCE APPLICATION & PERMIT1
06/11/2020121206033Open ↗
▸BISBPP-5 - Authorization to the Department of Transportation1
11/25/2019123743495Open ↗
▸Zoning, Tax Lot & Property Records8
▸BISEASEMENT AND RESTRICTIVE DECLARATIONS - SUPPPORTING DOCUMENTATION2
11/06/2024121206033Open ↗
02/20/2020121206033Open ↗
▸BISVERIFY TAX LOT2
07/31/2024121206033Open ↗
07/31/2024121206033Open ↗
▸BISTAX LOT: TENTATIVE LOT NUMBER ISSUED1
10/21/2019121206033Open ↗
▸BISCO OBJ: VERIFY ADDRESS-TOPO STAMP1
09/16/2024121206033Open ↗
▸BISZONING DIAGRAM1
02/24/2020121206033Open ↗
▸BISZONING EXHIBIT I: CERTIFICATION1
09/19/2022121206033Open ↗
▸Seals & Professional Certifications61
▸DOB NOWProgress Inspector Seal & Signature21
09/29/2026M00207125-I1Open ↗
09/29/2026M00207125-I1Open ↗
09/29/2026M00207125-I1Open ↗
Showing 3 of 21 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature19
09/29/2026M00207125-I1Open ↗
09/29/2026M00207125-I1Open ↗
09/29/2026M00207125-I1Open ↗
Showing 3 of 19 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature15
09/05/2026M00207125-I1Open ↗
09/05/2026M00207125-P3Open ↗
09/05/2026M00207125-P1Open ↗
Showing 3 of 15 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION4
04/10/2020121206033Open ↗
04/10/2020121206033Open ↗
04/10/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST1
12/20/2010120560525Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM1
12/20/2010120560525Open ↗
▸Trade Schedules & Equipment7
▸DOB NOWFDNY: Letter of No Objection4
09/04/2026M00207128-P2Open ↗
09/04/2026M00207128-P1Open ↗
09/04/2026M00207128-I1Open ↗
Showing 3 of 4 on file for this type
▸BISSPRINKLER INSP REPORT : FP-851
09/18/2024121206033Open ↗
▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION1
08/29/2022121206033Open ↗
▸BISDETECTOR:CARBON MONOXIDE-CERT.OF INSTALL1
08/29/2022121206033Open ↗
▸Safety & Tenant Protection8
▸BISSTREET TREE CHECKLIST4
06/03/2021121206033Open ↗
02/24/2020121206033Open ↗
02/24/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸BISDEMOLITION SUBMITTAL CERTIFICATION FORM1
03/17/2020121206033Open ↗
▸BISSTREET TREES: RECEIPT OF STREET TREES SITE PLAN1
02/20/2020121206033Open ↗
▸BISSTREET TREE SIGNOFF1
05/30/2023121206033Open ↗
▸DOB NOWTenant Protection Plan1
08/13/2026M00444839-I1Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/05/2026M00207125-P3Open ↗
09/05/2026M00207125-P1Open ↗
08/15/2026M00207125-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/13/2026M00207128-I1Open ↗
▸Energy Compliance13
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY3
06/03/2021121206033Open ↗
06/11/2020121206033Open ↗
02/20/2020121206033Open ↗
▸BISAIR SEALING AND INSULATION - VISUAL1
08/17/2022121206033Open ↗
▸BISINTERIOR LIGHTING POWER1
08/17/2022121206033Open ↗
▸BISFENESTRATION U-FACTOR & PRODUCT RATING1
08/17/2022121206033Open ↗
▸BISFENESTRATION AREAS1
08/17/2022121206033Open ↗
▸BISINSULATION PLACEMENT & R VALUES1
08/17/2022121206033Open ↗
▸BISLIGHTING IN DWELLING UNITS1
08/17/2022121206033Open ↗
▸BISENERGY CODE COMPLIANCE INSPECTIONS1
08/17/2022121206033Open ↗
▸BISLIGHTING CONTROLS1
08/17/2022121206033Open ↗
▸BISAS-BUILT ENERGY ANALYSIS (EN2)1
08/17/2022121206033Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1
04/10/2020121206033Open ↗
▸Inspections & Test Reports20
▸BISTECHNICAL REPORT: RESPONSIBILITY7
06/03/2021121206033Open ↗
06/11/2020121206033Open ↗
02/24/2020121206033Open ↗
Showing 3 of 7 on file for this type
▸BISSUBSURFACE / SOILS-FILL PLACEMENT IN-PLACE DENSITY1
08/17/2022121206033Open ↗
▸BISCONCRETE - CAST-IN-PLACE1
08/17/2022121206033Open ↗
▸BISTR2: CONCRETE FIELD TESTING TECHNICAL REPORT1
08/19/2022121206033Open ↗
▸BISTR3: CONCRETE DESIGN MIX TECHNICAL REPORT1
06/11/2020121206033Open ↗
▸BISFIRE-RESISTANT PENETRATIONS AND JOINTS (FIRESTOP)1
08/17/2022121206033Open ↗
▸BISFIRE-RESISTIVE RATED CONSTRUCTION1
08/17/2022121206033Open ↗
▸BISFOOTING AND FOUNDATION INSPECTION1
08/17/2022121206033Open ↗
▸BISPOST-INSTALLED ANCHORS1
08/17/2022121206033Open ↗
▸BISSTRUCTURAL STEEL - HIGH STRENGTH BOLTING1
08/17/2022121206033Open ↗
▸BISSTRUCTURAL STEEL - WELDING1
08/17/2022121206033Open ↗
▸BISSUBGRADE INSP / SOILS-SITE PREP1
08/17/2022121206033Open ↗
▸BISSOIL REPORT1
02/20/2020121206033Open ↗
▸BISTECHNICAL REPORT: SOIL INSPECTION1
02/24/2020121206033Open ↗
▸Approvals, Objections & Sign-offs11
▸BISSCHEDULE A - OCCUPANCY / USE6
06/26/2024121206033Open ↗
11/29/2023121206033Open ↗
11/16/2023121206033Open ↗
Showing 3 of 6 on file for this type
▸BISLETTERS - SUPPORTING DOCUMENTATION4
06/11/2020121206033Open ↗
03/17/2020121206033Open ↗
03/17/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸BISADMINISTRATIVE OBJECTIONS1
12/20/2010120560525Open ↗
▸Cost, Insurance & Ownership11
▸BISPROJECT-SPECIFIC GL INSURANCE4
06/22/2022121206033Open ↗
02/18/2022121206033Open ↗
06/11/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸BISCOST AFFIDAVIT4
02/24/2025121206033Open ↗
06/03/2021121206033Open ↗
02/20/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸BISPROJECT SPECIFIC GENERAL LIABILITY INSURANCE1
04/10/2020121206033Open ↗
▸BISCOST AFFIDAVIT (FINAL): PW31
04/07/2025121206033Open ↗
▸BISSTEEL AFFIDAVIT- FINAL1
03/22/2023121206033Open ↗
▸Filing & Intake Forms16
▸BISADDITIONAL INFORMATION7
02/09/2023121206033Open ↗
09/19/2022121206033Open ↗
07/20/2022121206033Open ↗
Showing 3 of 7 on file for this type
▸BISEFILING COVER SHEET5
02/20/2020121206033Open ↗
02/13/2020121206033Open ↗
02/13/2020121206033Open ↗
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▸BISBOROUGH INTAKE FORM4
06/22/2022121206033Open ↗
02/18/2022121206033Open ↗
04/10/2020121206033Open ↗
Showing 3 of 4 on file for this type
▸Other Documents3
▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1
06/22/2022121206033Open ↗
▸BISEXTERIOR INSULATION AND FINISH SYSTEMS (EIFS)1
08/17/2022121206033Open ↗
▸BISUNDERPINNING1
08/17/2022121206033Open ↗