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Two family converted from one family
2015 81 STREET
BROOKLYN · Bensonhurst · BIN 3163440
💬 Discuss this project
1915Year Built
2Stories
B3Building Class
R5Zoning
2,484 sfGross Floor Area
2Units
FDNY Report ↗
Two family converted from one family · 2,000 sf lot · 1.24 FAR built · Flood zone X
Locations of Work
ArchitectureMechanical
Floor 13p · 2 filings · 20 docs
Basement4p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/20/2020$1.2M—SPACESTONE 189 HART ST LLC → Private party$479/sf building
06/20/2019$960K—Private party → SPACESTONE 189 HART ST., LLC$386/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
BASIC GROUPS CORP508/04/2021
FOCAL POINT ARCHITECTS & ASS.108/16/2019
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BASIC GROUPS1003/21/2026
FOCAL POINT DESIGN & CONST. INC.203/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
CUBE BUILDERS GROUP NYGeneral Contractor603/21/2026
PIPESTYLISTS, INCPlumbing607/08/2026
SAMFRIENDS DEVEL & CONSTGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
NY ACOM ENGINEERING PLLC7061508/04/2021
Building Lifecycle
All (43)Filed (6)Permit Issued (4)Signed Off (3)Special Inspection (30)
12/22/2022
Signed off — Alteration
B00183980-I1
08/13/2021
Signed off — Alteration
INSTALL NEW BOILER AND RELOCATED 2 EXISTING H.W.H. IN THE 2 STORY EXISTING BUILDING. PLUMBING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497602-I1
08/12/2021
Signed off — Alteration
INTERIOR RENOVATION OF BASEMENT AND 1ST FLOOR. INSTALL A NEW DECK IN REAR YARD OF 2 STORY EXISTING BUILDING. PARTITION, FLOORING, AND PAINTING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497567-I1
08/05/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
YING JIANG
08/05/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
YING JIANG
08/05/2021
Special inspection requirement — Energy Code Compliance Inspections
YING JIANG
08/05/2021
Special inspection requirement — HVAC-R and service water heating system controls
YING JIANG
08/05/2021
Special inspection requirement — HVAC-R and service water heating equipment
YING JIANG
08/04/2021
Filed — Alteration
INSTALL NEW BOILER AND RELOCATED 2 EXISTING H.W.H. IN THE 2 STORY EXISTING BUILDING. PLUMBING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497602-P3
08/04/2021
Special inspection requirement — HVAC-R and service water heating system controls
YING JIANG
08/04/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
YING JIANG
08/04/2021
Special inspection requirement — HVAC-R and service water heating equipment
YING JIANG
08/04/2021
Special inspection requirement — Energy Code Compliance Inspections
YING JIANG
08/04/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
YING JIANG
07/09/2021
Filed — Alteration
INSTALL NEW BOILER AND RELOCATED 2 EXISTING H.W.H. IN THE 2 STORY EXISTING BUILDING. PLUMBING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497602-P2
07/09/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
YING JIANG
07/09/2021
Special inspection requirement — Energy Code Compliance Inspections
YING JIANG
07/09/2021
Special inspection requirement — HVAC-R and service water heating system controls
YING JIANG
07/09/2021
Special inspection requirement — HVAC-R and service water heating equipment
YING JIANG
07/09/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
YING JIANG
06/03/2021
Filed — Alteration
INSTALL NEW BOILER AND RELOCATED 2 EXISTING H.W.H. IN THE 2 STORY EXISTING BUILDING. PLUMBING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497602-P1
06/03/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
YING JIANG
06/03/2021
Special inspection requirement — Energy Code Compliance Inspections
YING JIANG
06/03/2021
Special inspection requirement — HVAC-R and service water heating equipment
YING JIANG
06/03/2021
Special inspection requirement — HVAC-R and service water piping design and insulation
YING JIANG
06/03/2021
Special inspection requirement — HVAC-R and service water heating system controls
YING JIANG
04/22/2021
Permit issued — General Construction
B00497567-I1-GC
04/16/2021
Permit issued — General Construction
B00497567-I1-GC
04/03/2021
Permit issued — Plumbing
B00497602-I1-PL
04/02/2021
Filed — Alteration
INSTALL NEW BOILER AND RELOCATED 2 EXISTING H.W.H. IN THE 2 STORY EXISTING BUILDING. PLUMBING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497602-I1
04/02/2021
Filed — Alteration
INTERIOR RENOVATION OF BASEMENT AND 1ST FLOOR. INSTALL A NEW DECK IN REAR YARD OF 2 STORY EXISTING BUILDING. PARTITION, FLOORING, AND PAINTING WORKS AS PER PLAN. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
B00497567-I1
04/02/2021
Special inspection requirement — Fenestration air leakage
YING JIANG
04/02/2021
Special inspection requirement — Metering
YING JIANG
04/02/2021
Special inspection requirement — Fenestration areas
YING JIANG
04/02/2021
Special inspection requirement — Fire-Resistance Rated Construction
YING JIANG
04/02/2021
Special inspection requirement — Energy Code Compliance Inspections
YING JIANG
04/02/2021
Special inspection requirement — Structural Stability – Alterations of existing buildings
YING JIANG
04/02/2021
Special inspection requirement — Masonry
YING JIANG
04/02/2021
Special inspection requirement — Final
YING JIANG
04/02/2021
Special inspection requirement — Fire-Resistant Penetrations and Joints
YING JIANG
04/02/2021
Special inspection requirement — Fenestration and door U-factor and product ratings
YING JIANG
08/19/2019
Permit issued — Curb Cut
B00183980-I1-CC
08/16/2019
Filed — Alteration
B00183980-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionSigned-offCUBE BUILDERS GROUP NY04/22/2021
DOB NOWGeneral ConstructionSigned-offCUBE BUILDERS GROUP INC04/16/2021
DOB NOWPlumbingSigned-offT & T PLUMBING INC04/03/2021
DOB NOWCurb CutSigned-offSAMFRIENDS DEVEL & CONST08/19/2019
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 33
DateRequirementInspectorRole
08/05/2021HVAC-R and service water piping design and insulationYING JIANGenergy_progress
08/05/2021Fire-Resistant Penetrations and JointsYING JIANGspecial
08/05/2021Energy Code Compliance InspectionsYING JIANGprogress
08/05/2021HVAC-R and service water heating system controlsYING JIANGenergy_progress
08/05/2021HVAC-R and service water heating equipmentYING JIANGenergy_progress
08/04/2021HVAC-R and service water heating system controlsYING JIANGenergy_progress
08/04/2021HVAC-R and service water piping design and insulationYING JIANGenergy_progress
08/04/2021HVAC-R and service water heating equipmentYING JIANGenergy_progress
08/04/2021Energy Code Compliance InspectionsYING JIANGprogress
08/04/2021Fire-Resistant Penetrations and JointsYING JIANGspecial
07/09/2021Fire-Resistant Penetrations and JointsYING JIANGspecial
07/09/2021Energy Code Compliance InspectionsYING JIANGprogress
07/09/2021HVAC-R and service water heating system controlsYING JIANGenergy_progress
07/09/2021HVAC-R and service water heating equipmentYING JIANGenergy_progress
07/09/2021HVAC-R and service water piping design and insulationYING JIANGenergy_progress
06/03/2021Fire-Resistant Penetrations and JointsYING JIANGspecial
06/03/2021Energy Code Compliance InspectionsYING JIANGprogress
06/03/2021HVAC-R and service water heating equipmentYING JIANGenergy_progress
06/03/2021HVAC-R and service water piping design and insulationYING JIANGenergy_progress
06/03/2021HVAC-R and service water heating system controlsYING JIANGenergy_progress
04/02/2021Fenestration air leakageYING JIANGenergy_progress
04/02/2021MeteringYING JIANGenergy_progress
04/02/2021Fenestration areasYING JIANGenergy_progress
04/02/2021Fire-Resistance Rated ConstructionYING JIANGprogress
04/02/2021Energy Code Compliance InspectionsYING JIANGprogress
Latest 25 of 33.
▾Documents — 52 on file (BIS + DOB NOW)
▸Plans & Drawings6
▸DOB NOWPlans/Sketch5
09/01/2026B00497602-P3Request digital key ↗
09/01/2026B00497602-I1Request digital key ↗
09/01/2026B00497602-P1Request digital key ↗
Showing 3 of 5 on file for this type
▸DOB NOWPlans/Sketch - Curb Cut1
09/02/2026B00183980-I1Request digital key ↗
▸Seals & Professional Certifications39
▸DOB NOWProgress Inspector Seal & Signature26
09/02/2026B00497567-I1Open ↗
09/02/2026B00497567-I1Open ↗
09/02/2026B00497567-I1Open ↗
Showing 3 of 26 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature7
09/02/2026B00497567-I1Open ↗
09/02/2026B00497567-I1Open ↗
09/02/2026B00497567-I1Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature6
09/01/2026B00497602-P3Open ↗
09/01/2026B00497602-I1Open ↗
09/01/2026B00497602-P1Open ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
09/01/2026B00497602-I1Open ↗
09/01/2026B00497602-P1Open ↗
09/01/2026B00497602-P3Open ↗
Showing 3 of 5 on file for this type
▸Energy Compliance2
▸DOB NOWEN2: As Built Energy Analysis.2
09/01/2026B00497567-I1Open ↗
08/13/2026B00497602-I1Open ↗