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Three families
835 50 STREET
BROOKLYN · BIN 3137556
💬 Discuss this project
1910Year Built
2Stories
C0Building Class
R6Zoning
2,128 sfGross Floor Area
3Units
1 Open Violation 0 unresolved · 1 paperwork only ▸
Three families · 2,003 sf lot · 1.06 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 2Under Construction3p · 1 filing · 20 docs
Floor 1Under Construction3p · 1 filing · 20 docs
CellarUnder Construction3p · 1 filing · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
YU HOLDING 2025309/02/2026
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/20/2026$1.4M—— → —$670/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
A PLUS DESIGN INC205/13/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
TLS CONSTRUCTION GROUP I*General Contractor107/05/2026
CATMAN PLUMBING INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
A PLUS DESIGN INC6615205/13/2026
Building Lifecycle
All (17)Filed (2)Permit Issued (2)Violation (1)Special Inspection (12)
07/08/2026
Violation issued (ECB, open)
Construction
05/19/2026
Permit issued — Plumbing
B01401184-S1-PL
05/15/2026
Permit issued — General Construction
B01401184-I1-GC
05/13/2026
Filed — Alteration
PLUMBING WORK ON CEL, 1ST & 2ND FLOOR. NO CHANGE IN USE GROUP, EGRESS AND OCCUPANCY. (TOTAL: EXISTING TWO FAMILY DWELLING UNITS UNDER CO#124565/1949.)
B01401184-S1
05/13/2026
Filed — Alteration
PLUMBING WORK ON CEL, 1ST & 2ND FLOOR. NO CHANGE IN USE GROUP, EGRESS AND OCCUPANCY. (TOTAL: EXISTING TWO FAMILY DWELLING UNITS UNDER CO#124565/1949.)
B01401184-I1
05/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
HONGTENG CHEN
05/13/2026
Special inspection requirement — Energy Code Compliance Inspections
HONGTENG CHEN
05/13/2026
Special inspection requirement — HVAC-R and service water heating equipment
HONGTENG CHEN
05/13/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
HONGTENG CHEN
05/13/2026
Special inspection requirement — Maintenance information
HONGTENG CHEN
05/13/2026
Special inspection requirement — HVAC-R and service water heating system controls
HONGTENG CHEN
05/13/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
HONGTENG CHEN
05/13/2026
Special inspection requirement — Energy Code Compliance Inspections
HONGTENG CHEN
05/13/2026
Special inspection requirement — Fire-Resistance Rated Construction
HONGTENG CHEN
05/13/2026
Special inspection requirement — Final
HONGTENG CHEN
05/13/2026
Special inspection requirement — Air barrier - visual inspection
HONGTENG CHEN
05/13/2026
Special inspection requirement — Interior lighting power
HONGTENG CHEN
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedCATMAN PLUMBING INC05/19/2026
DOB NOWGeneral ConstructionPermit IssuedTLS CONSTRUCTION GROUP I*05/15/2026
1 project · most recent 05/13/2026
Gas Water/Sanitary
FiledStatusContractorScope
05/13/2026Permit IssuedCATMAN PLUMBING INCGas, Water/Sanitary
1 project · most recent 04/29/2026
General Wiring
FiledStatusContractorScope
04/29/2026Permit IssuedKJK ELECTRIC INCGeneral Wiring
▾Special Inspection Requirements (DOB NOW) — 12
DateRequirementInspectorRole
05/13/2026Fire-Resistant Penetrations and JointsHONGTENG CHENspecial
05/13/2026Energy Code Compliance InspectionsHONGTENG CHENprogress
05/13/2026HVAC-R and service water heating equipmentHONGTENG CHENenergy_progress
05/13/2026HVAC-R and service water piping design and insulationHONGTENG CHENenergy_progress
05/13/2026Maintenance informationHONGTENG CHENenergy_progress
05/13/2026HVAC-R and service water heating system controlsHONGTENG CHENenergy_progress
05/13/2026Fire-Resistant Penetrations and JointsHONGTENG CHENspecial
05/13/2026Energy Code Compliance InspectionsHONGTENG CHENprogress
05/13/2026Fire-Resistance Rated ConstructionHONGTENG CHENprogress
05/13/2026FinalHONGTENG CHENprogress
05/13/2026Air barrier - visual inspectionHONGTENG CHENenergy_progress
05/13/2026Interior lighting powerHONGTENG CHENenergy_progress
▾Documents — 21 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/17/2026B01401184-P1Request digital key ↗
08/17/2026B01401184-I1Request digital key ↗
08/17/2026B01401184-S1Request digital key ↗
▸Seals & Professional Certifications15
▸DOB NOWProgress Inspector Seal & Signature10
08/29/2026B01401184-I1Open ↗
08/29/2026B01401184-I1Open ↗
08/29/2026B01401184-I1Open ↗
Showing 3 of 10 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/17/2026B01401184-S1Open ↗
08/17/2026B01401184-P1Open ↗
08/17/2026B01401184-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/29/2026B01401184-I1Open ↗
08/26/2026B01401184-S1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/17/2026B01401184-S1Open ↗
08/17/2026B01401184-P1Open ↗
08/17/2026B01401184-I1Open ↗