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Single or multiple dwelling with stores or offices
306 COURT STREET
BROOKLYN · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · BIN 3004204
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1931Year Built
4Stories
S9Building Class
R6AZoning
2,925 sfGross Floor Area
7Units
Rent Stabilized0 Open Violations
Single or multiple dwelling with stores or offices · Owner of record: 306 COURT STREET OWNER LLC · 1,725 sf lot · 1.7 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbingGeneral
Roof2p · 1 filing · 20 docs
Floor 48p · 1 filing · 20 docs
Floor 38p · 1 filing · 20 docs
Floor 29p · 1 filing · 20 docs
Floor 13p · 1 filing · 20 docs
Cellar7p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
Sollevare Group807/08/2026
ALTA PROPERTY GROUP403/21/2026
306 COURT STREET OWNER LLC103/22/2026
JL VISION INC.103/22/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
04/23/2025$5.4M—Private party → 306 COURT STREET OWNER LLC$1,846/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
JAMES CHAI ARCHITECT, P.C.311/10/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
HTX BUILDING CONSULTING303/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
REDIRECTING LIC INCGeneral Contractor407/08/2026
SUPER CHARGED ELEC. INC.Electrical103/22/2026
SAFEPIPE PLUMBING INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
JAMES JH CHAI & ASSOCIATE6481311/10/2025
Building Lifecycle
All (43)Filed (3)Permit Issued (3)Signed Off (3)Violation (11)Inspection (1)Special Inspection (22)
02/11/2026
Signed off — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-I1
02/11/2026
Signed off — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-S1
02/11/2026
Signed off — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-S2
02/04/2026
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
01/22/2026
Violation issued (ECB, closed)
Construction
12/19/2025
Permit issued — Mechanical Systems
B01283739-S2-MS
11/10/2025
Filed — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-S2
11/06/2025
Special inspection requirement — HVAC-R and service water heating system controls
Joon Ho Chai
11/06/2025
Special inspection requirement — HVAC-R and service water heating equipment
Joon Ho Chai
11/06/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
Joon Ho Chai
11/06/2025
Special inspection requirement — Maintenance information
Joon Ho Chai
11/06/2025
Special inspection requirement — Mechanical Systems
Joon Ho Chai
11/06/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Joon Ho Chai
11/06/2025
Special inspection requirement — Final
JIN WOO LEE
11/06/2025
Special inspection requirement — Energy Code Compliance Inspections
Joon Ho Chai
10/22/2025
Permit issued — Plumbing
B01283739-S1-PL
10/14/2025
Permit issued — General Construction
B01283739-I1-GC
09/24/2025
Filed — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-S1
09/17/2025
Filed — Alteration
MECHANICAL WORK FOR APT UNITS #1, #2 & #3 ON 2ND, 3RD AND 4TH FLOOR. NO CHANGE T
B01283739-I1
09/17/2025
Special inspection requirement — Lighting in dwelling units
Joon Ho Chai
09/17/2025
Special inspection requirement — Metering
Joon Ho Chai
09/17/2025
Special inspection requirement — Interior lighting power
Joon Ho Chai
09/17/2025
Special inspection requirement — Energy Code Compliance Inspections
Joon Ho Chai
09/17/2025
Special inspection requirement — Fenestration air leakage
Joon Ho Chai
09/17/2025
Special inspection requirement — Lighting controls
Joon Ho Chai
09/17/2025
Special inspection requirement — Air barrier - visual inspection
Joon Ho Chai
09/17/2025
Special inspection requirement — Fenestration areas
Joon Ho Chai
09/17/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
Joon Ho Chai
09/17/2025
Special inspection requirement — Exterior lighting power
Joon Ho Chai
09/08/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
Joon Ho Chai
09/08/2025
Special inspection requirement — Fire-Resistance Rated Construction
Joon Ho Chai
09/08/2025
Special inspection requirement — Final
JIN WOO LEE
09/08/2025
Special inspection requirement — Tenant Protection Plan Compliance
Joon Ho Chai
06/09/2025
Violation issued (HPD, closed)
A
04/09/2024
Violation issued (HPD, closed)
A
04/03/2023
Violation issued (ECB, closed)
Construction
03/22/2023
Violation issued (HPD, closed)
A
02/23/2022
Violation issued (HPD, closed)
A
02/23/2022
Violation issued (HPD, closed)
I
04/08/2021
Violation issued (HPD, closed)
I
04/08/2021
Violation issued (HPD, closed)
A
12/02/2010
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
09/08/2010
Violation issued (ECB, closed)
Cranes and Derricks
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offREDIRECTING LIC INC12/19/2025
DOB NOWPlumbingSigned-offBELLEROSE PLBG & HTG10/22/2025
DOB NOWGeneral ConstructionSigned-offREDIRECTING LIC INC10/14/2025
BISMHISSUEDINDUSTRIAL COOLING TCH IN03/24/2017
BISOTISSUEDAVS CONSTRUCTION MGMT INC02/22/2017
BISPLISSUEDZ.W. PLBG & HTG CORP01/09/2017
BISOTISSUEDAVS CONSTRUCTION MGMT INC12/07/2016
BISOTISSUEDFOREVER DESIGN10/07/2016
BISPLISSUEDSPEEDWAY PLUMBING CORP09/29/2016
BISOTISSUEDFOREVER DESIGN09/26/2016
BISOTISSUEDSQUAN CONSTRUCTION SERVIC10/21/2015
BISOTISSUEDSQUAN CONSTRUCTION SERVIC07/22/2015
BISEQISSUEDJIMCO CONTRACTORS INC12/01/2011
BISMHISSUEDJIMCO CONTRACTORS INC12/01/2011
BISEQISSUEDSASCO CONSTRUCTION ENTER08/24/2010
BISOTISSUEDAPPLIED ELECTRIC CORP`10/03/2000
BISOTISSUEDAPPLIED ELECTRIC CORP03/02/2000
5 projects · most recent 11/11/2025
General Wiring
FiledStatusContractorScope
11/11/2025CompleteE & M ELECTRICAL NY CORPGeneral Wiring
06/24/2025CompleteEMPIRE LIC ELECL CONTRS1 meters, 1 new_meters
01/10/2022CompleteANTONIO CERIELLO ELEC INC9 meters, 9 new_meters
08/17/2021Permit IssuedSUPER CHARGED ELEC. INC.1 meters, 1 new_meters
04/28/2021CompleteSUPER CHARGED ELEC. INC.General Wiring
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
02/04/2026Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 22
DateRequirementInspectorRole
11/06/2025HVAC-R and service water heating system controlsJoon Ho Chaienergy_progress
11/06/2025HVAC-R and service water heating equipmentJoon Ho Chaienergy_progress
11/06/2025HVAC-R and service water piping design and insulationJoon Ho Chaienergy_progress
11/06/2025Maintenance informationJoon Ho Chaienergy_progress
11/06/2025Mechanical SystemsJoon Ho Chaispecial
11/06/2025Fire-Resistant Penetrations and JointsJoon Ho Chaispecial
11/06/2025FinalJIN WOO LEEprogress
11/06/2025Energy Code Compliance InspectionsJoon Ho Chaiprogress
09/17/2025Lighting in dwelling unitsJoon Ho Chaienergy_progress
09/17/2025MeteringJoon Ho Chaienergy_progress
09/17/2025Interior lighting powerJoon Ho Chaienergy_progress
09/17/2025Energy Code Compliance InspectionsJoon Ho Chaiprogress
09/17/2025Fenestration air leakageJoon Ho Chaienergy_progress
09/17/2025Lighting controlsJoon Ho Chaienergy_progress
09/17/2025Air barrier - visual inspectionJoon Ho Chaienergy_progress
09/17/2025Fenestration areasJoon Ho Chaienergy_progress
09/17/2025Fenestration and door U-factor and product ratingsJoon Ho Chaienergy_progress
09/17/2025Exterior lighting powerJoon Ho Chaienergy_progress
09/08/2025Fire-Resistant Penetrations and JointsJoon Ho Chaispecial
09/08/2025Fire-Resistance Rated ConstructionJoon Ho Chaiprogress
09/08/2025FinalJIN WOO LEEprogress
09/08/2025Tenant Protection Plan ComplianceJoon Ho Chaispecial
▾Documents — 122 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/19/2026B01283739-S1Request digital key ↗
08/19/2026B01283739-I1Request digital key ↗
08/19/2026B01283739-S2Request digital key ↗
▸Applications & Permits33
▸BISPLAN / WORK APPROVAL APPLICATION18
12/03/2025321450684Open ↗
09/02/2025320205988Open ↗
08/29/2025320205988Open ↗
Showing 3 of 18 on file for this type
▸BISWORK PERMIT APPLICATION12
03/30/2017321450684Open ↗
02/23/2017321469745Open ↗
01/09/2017321469745Open ↗
Showing 3 of 12 on file for this type
▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION2
03/07/2017321469745Open ↗
02/15/2017321469745Open ↗
▸BISNon-Directive 14 Construction Sign Off Including Sign Applications1
12/20/2017321469745Open ↗
▸Seals & Professional Certifications31
▸DOB NOWProgress Inspector Seal & Signature9
09/02/2026B01283739-I1Open ↗
09/02/2026B01283739-I1Open ↗
09/02/2026B01283739-I1Open ↗
Showing 3 of 9 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION8
02/15/2018321469745Open ↗
02/15/2018321469745Open ↗
12/20/2017321469745Open ↗
Showing 3 of 8 on file for this type
▸BISPROFESSIONAL CERTIFIED CHECKLIST4
10/24/2016321469745Open ↗
09/15/2016321450684Open ↗
12/01/2011320406066Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/19/2026B01283739-S1Open ↗
08/19/2026B01283739-I1Open ↗
08/19/2026B01283739-S2Open ↗
▸DOB NOWSpecial Inspector Seal & Signature3
09/02/2026B01283739-I1Open ↗
08/29/2026B01283739-S2Open ↗
08/29/2026B01283739-S2Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT2
10/24/2016321469745Open ↗
09/15/2016321450684Open ↗
▸BISPROFESSIONAL CERTIFICATION STATEMENT FORM2
12/01/2011320406066Open ↗
08/24/2010320205988Open ↗
▸Trade Schedules & Equipment8
▸BISDETECTOR:SMOKE-CERT. OF INSTALLATION3
02/15/2018321469745Open ↗
02/15/2018321469745Open ↗
12/20/2017321469745Open ↗
▸BISSCHEDULE B - PLUMBING/SPRINKLER/STANDPIPE2
10/24/2016321469745Open ↗
09/15/2016321450684Open ↗
▸BISFA - FDNY APPROVAL : FD-FAA1
03/16/2016321167615Open ↗
▸BISEQUIPMENT USE APPLICATION/PERMIT1
04/19/2012320406066Open ↗
▸BISEQUIPMENT USE PERMITS1
04/19/2012320406066Open ↗
▸Safety & Tenant Protection3
▸BISSTREET TREE CHECKLIST2
10/24/2016321469745Open ↗
12/01/2011320406066Open ↗
▸BISTenant Protection Plan and Notes1
10/24/2016321469745Open ↗
▸Environmental & Asbestos7
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/19/2026B01283739-I1Open ↗
08/19/2026B01283739-S1Open ↗
08/19/2026B01283739-S2Open ↗
▸BISASBESTOS: CERTIFICATION (DEP ACP5)2
10/24/2016321469745Open ↗
09/15/2016321450684Open ↗
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'1
12/01/2011320406066Open ↗
▸BISASBESTOS EXEMPTION CERTIFICATION LETTER1
08/24/2010320205988Open ↗
▸Energy Compliance9
▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS4
02/15/2018321469745Open ↗
12/20/2017321469745Open ↗
10/24/2016321469745Open ↗
Showing 3 of 4 on file for this type
▸BISAS-BUILT ENERGY ANALYSIS2
12/20/2017321469745Open ↗
04/19/2012320406066Open ↗
▸BISTECHNICAL REPORT: ENERGY2
04/19/2012320406066Open ↗
12/01/2011320406066Open ↗
▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY1
08/29/2025321450684Open ↗
▸Inspections & Test Reports4
▸BISTECHNICAL REPORT: RESPONSIBILITY4
09/05/2025321450684Open ↗
08/28/2025321167615Open ↗
08/28/2025300998810Open ↗
Showing 3 of 4 on file for this type
▸Approvals, Objections & Sign-offs7
▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST3
02/15/2018321469745Open ↗
12/20/2017321469745Open ↗
04/19/2012320406066Open ↗
▸BISADMINISTRATIVE OBJECTIONS2
12/01/2011320406066Open ↗
08/24/2010320205988Open ↗
▸BISLETTERS - SUPPORTING DOCUMENTATION1
04/19/2012320406066Open ↗
▸BISLetter from Homeowner for Withdrawal1
12/20/2017321469745Open ↗
▸Cost, Insurance & Ownership8
▸BISCOST AFFIDAVIT8
08/29/2025321450684Open ↗
08/28/2025321167615Open ↗
12/20/2017321469745Open ↗
Showing 3 of 8 on file for this type
▸Filing & Intake Forms9
▸BISEFILING COVER SHEET4
10/25/2016321469745Open ↗
07/10/2015321167615Open ↗
12/01/2011320406066Open ↗
Showing 3 of 4 on file for this type
▸BISADDITIONAL INFORMATION3
02/15/2018321469745Open ↗
05/25/2017321469745Open ↗
04/03/2012320406066Open ↗
▸BISBOROUGH INTAKE FORM2
02/15/2018321469745Open ↗
12/20/2017321469745Open ↗