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Miscellaneous two family
665 50 STREET
BROOKLYN · BIN 3013054
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1930Year Built
2Stories
B9Building Class
R6BZoning
2,080 sfGross Floor Area
2Units
Miscellaneous two family · Owner of record: AMERICAN LANG QI HONG GUANG ASSOCIATION, INC. · 2,003 sf lot · 1.04 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalGeneral
Roof1p · 1 filing · 20 docs
Floor 25p · 2 filings · 20 docs
Floor 15p · 2 filings · 20 docs
Cellar1p · 2 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
AMERICAN LANG QI HONG GUANG ASSOCIA1107/08/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
12/22/2020$1.4M—Private party → AMERICAN LANG QI HONG GUANG ASSOCIATION, INC.$654/sf building
▾Design Consultants (Architect / Engineer of Record)
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
ECDESIGN STUDIO803/21/2026
MODERN BUILDING CONSULTANT103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
SPLEN CONSTRUCTION INCGeneral Contractor303/21/2026
TRI STATE PLBG & HTG INCPlumbing207/08/2026
MBC CONSTRUCTION CORPGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
GREAT WALL CONSULTANT P.E5633209/03/2021
KCE CONSULTING ENGINEERIN3712104/19/2021
BILLAH ENGINEERING5838101/15/2021
Building Lifecycle
All (59)Filed (6)Permit Issued (4)Signed Off (2)Objection (18)Special Inspection (29)
01/14/2022
Signed off — Alteration
PROPOSE PLUMBING WORK IN CONJUNCTION WITH CONSTRUCTION DOB NOW #B00445626 AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00448872-I1
12/09/2021
Signed off — Alteration
PROPOSE INTERIOR RENOVATION OF EXISTING 2 FAMILY BUILDING WITH NEW PARTITION WORK AND FINISH WORK AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00445626-I1
09/07/2021
Special inspection requirement — Energy Code Compliance Inspections
MOHAMMAD BILLAH
09/07/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
MOHAMMAD BILLAH
09/07/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
MOHAMMAD BILLAH
09/07/2021
Special inspection requirement — HVAC-R and service water heating system controls
MOHAMMAD BILLAH
09/07/2021
Special inspection requirement — HVAC-R and service water heating equipment
MOHAMMAD BILLAH
09/06/2021
Filed — Alteration
PROPOSE INTERIOR RENOVATION OF EXISTING 2 FAMILY BUILDING WITH NEW PARTITION WORK AND FINISH WORK AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00445626-P2
09/03/2021
Filed — Alteration
PROPOSE PLUMBING WORK IN CONJUNCTION WITH CONSTRUCTION DOB NOW #B00445626 AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00448872-P1
09/03/2021
Special inspection requirement — Energy Code Compliance Inspections
MOHAMMAD BILLAH
09/03/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
Xiong Wei Wu
09/03/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
MOHAMMAD BILLAH
09/03/2021
Special inspection requirement — HVAC-R and service water heating equipment
MOHAMMAD BILLAH
09/03/2021
Special inspection requirement — HVAC-R and service water heating system controls
MOHAMMAD BILLAH
06/25/2021
Permit issued — Plumbing
B00448872-I1-PL
06/08/2021
Permit issued — General Construction
B00445626-I1-GC
04/28/2021
Filed — Alteration
PROPOSE INTERIOR RENOVATION OF EXISTING 2 FAMILY BUILDING WITH NEW PARTITION WORK AND FINISH WORK AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00445626-P1
04/28/2021
Special inspection requirement — Maintenance information
Xiong Wei Wu
04/28/2021
Special inspection requirement — Interior lighting power
Xiong Wei Wu
04/28/2021
Special inspection requirement — Concrete - Cast-In-Place
Xiong Wei Wu
04/28/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
Xiong Wei Wu
04/28/2021
Special inspection requirement — Energy Code Compliance Inspections
Xiong Wei Wu
04/28/2021
Special inspection requirement — Final
Xiong Wei Wu
04/28/2021
Special inspection requirement — Fire-Resistance Rated Construction
Xiong Wei Wu
04/28/2021
Special inspection requirement — Insulation placement and R values
Xiong Wei Wu
04/28/2021
Special inspection requirement — Fenestration air leakage
Xiong Wei Wu
04/28/2021
Special inspection requirement — Fenestration and door U-factor and product ratings
Xiong Wei Wu
04/28/2021
Special inspection requirement — Fenestration areas
Xiong Wei Wu
04/23/2021
Objection raised — Inspections
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Admin
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Admin
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Structural
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Structural
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Admin
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Admin
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Inspections
04/23/2021
Objection resolved — Addressed
04/23/2021
Objection raised — Admin
04/23/2021
Objection resolved — Addressed
04/19/2021
Filed — Alteration
PROPOSE STRUCTURE WORK AS PER PLAN. NO CHANGE IN USE, EGRESS & OCCUPANCY.IN CONJUNCTION WITH B00445626-P1.
B00504686-I1
04/15/2021
Special inspection requirement — Post-installed Anchors
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Wood Frame
Kemba Walcott
04/15/2021
Special inspection requirement — Final
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Steel - Welding
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Steel - High Strength Bolting
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Steel - Details
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Stability – Alterations of existing buildings
Kemba Walcott
04/15/2021
Special inspection requirement — Structural Cold-Formed Steel
Kemba Walcott
01/29/2021
Permit issued — Plumbing
B00448872-I1-PL
01/21/2021
Permit issued — General Construction
B00445626-I1-GC
01/15/2021
Filed — Alteration
PROPOSE PLUMBING WORK IN CONJUNCTION WITH CONSTRUCTION DOB NOW #B00445626 AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00448872-I1
01/06/2021
Filed — Alteration
PROPOSE INTERIOR RENOVATION OF EXISTING 2 FAMILY BUILDING WITH NEW PARTITION WORK AND FINISH WORK AS PER PLAN. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B00445626-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offDW PLUMBING INC06/25/2021
DOB NOWGeneral ConstructionSigned-offSPLEN CONSTRUCTION INC06/08/2021
DOB NOWPlumbingSigned-offDW PLUMBING INC01/29/2021
DOB NOWGeneral ConstructionSigned-offMBC CONSTRUCTION CORP01/21/2021
1 project · most recent 11/12/2021
General Wiring
FiledStatusContractorScope
11/12/2021CompleteE D ELECTRICAL INCGeneral Wiring
1 project · most recent 04/19/2021
Steel Wood
FiledStatusContractorScope
04/19/2021——Steel, Wood
▾Special Inspection Requirements (DOB NOW) — 29
DateRequirementInspectorRole
09/07/2021Energy Code Compliance InspectionsMOHAMMAD BILLAHprogress
09/07/2021Fire-Resistant Penetrations and JointsMOHAMMAD BILLAHspecial
09/07/2021HVAC-R and service water piping design and insulationMOHAMMAD BILLAHenergy_progress
09/07/2021HVAC-R and service water heating system controlsMOHAMMAD BILLAHenergy_progress
09/07/2021HVAC-R and service water heating equipmentMOHAMMAD BILLAHenergy_progress
09/03/2021Energy Code Compliance InspectionsMOHAMMAD BILLAHprogress
09/03/2021Fire-Resistant Penetrations and JointsXiong Wei Wuspecial
09/03/2021HVAC-R and service water piping design and insulationMOHAMMAD BILLAHenergy_progress
09/03/2021HVAC-R and service water heating equipmentMOHAMMAD BILLAHenergy_progress
09/03/2021HVAC-R and service water heating system controlsMOHAMMAD BILLAHenergy_progress
04/28/2021Maintenance informationXiong Wei Wuenergy_progress
04/28/2021Interior lighting powerXiong Wei Wuenergy_progress
04/28/2021Concrete - Cast-In-PlaceXiong Wei Wuspecial
04/28/2021Fire-Resistant Penetrations and JointsXiong Wei Wuspecial
04/28/2021Energy Code Compliance InspectionsXiong Wei Wuprogress
04/28/2021FinalXiong Wei Wuprogress
04/28/2021Fire-Resistance Rated ConstructionXiong Wei Wuprogress
04/28/2021Insulation placement and R valuesXiong Wei Wuenergy_progress
04/28/2021Fenestration air leakageXiong Wei Wuenergy_progress
04/28/2021Fenestration and door U-factor and product ratingsXiong Wei Wuenergy_progress
04/28/2021Fenestration areasXiong Wei Wuenergy_progress
04/15/2021Post-installed AnchorsKemba Walcottspecial
04/15/2021Structural Wood FrameKemba Walcottprogress
04/15/2021FinalKemba Walcottprogress
04/15/2021Structural Steel - WeldingKemba Walcottspecial
Latest 25 of 29.
▾Documents — 48 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch - General Construction3
09/01/2026B00445626-P1Request digital key ↗
09/01/2026B00445626-I1Request digital key ↗
09/01/2026B00445626-P2Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing2
09/01/2026B00448872-I1Request digital key ↗
08/15/2026B00448872-P1Request digital key ↗
▸DOB NOWPlans/Sketch1
08/15/2026B00504686-I1Request digital key ↗
▸Seals & Professional Certifications35
▸DOB NOWProgress Inspector Seal & Signature19
08/31/2026B00504686-I1Open ↗
08/31/2026B00504686-I1Open ↗
08/27/2026B00445626-P1Open ↗
Showing 3 of 19 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature10
08/31/2026B00504686-I1Open ↗
08/31/2026B00504686-I1Open ↗
08/31/2026B00504686-I1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
09/01/2026B00504686-I1Open ↗
09/01/2026B00445626-P2Open ↗
09/01/2026B00445626-P1Open ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-5: Asbestos Assessment Report6
09/01/2026B00445626-P2Open ↗
09/01/2026B00445626-I1Open ↗
09/01/2026B00445626-P1Open ↗
Showing 3 of 6 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
08/13/2026B00448872-I1Open ↗