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City residence, one family
313 UNION STREET
BROOKLYN · BIN 3007048
💬 Discuss this project
1901Year Built
4Stories
A4Building Class
R6BZoning
2,853 sfGross Floor Area
1Units
City residence, one family · 1,500 sf lot · 1.9 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbingGeneral
Roof59p · 1 filing · 20 docs
Floor 448p · 1 filing · 20 docs
Floor 351p · 1 filing · 20 docs
Floor 226p · 1 filing · 20 docs
Floor 129p · 1 filing · 20 docs
Cellar44p · 1 filing · 20 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
JOHN H HATHEWAY JR., ARCHITECT508/09/2023
MJE PROFESSIONAL SERVICES108/08/2023
NONE108/04/2023
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
DESIGN TECH CONSTRUCT CORGeneral Contractor407/08/2026
EMPIRE CITY CONSTRUCTIONGeneral Contractor307/08/2026
ASPECT PLBNG&HTNG CO LLCPlumbing207/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
JOHN H HATHEWAY JR., ARCH4175508/09/2023
JUST CONSULTING ENGINEERI5865108/04/2023
Building Lifecycle
All (17)Filed (7)Permit Issued (8)Signed Off (1)Inspection (1)
02/23/2024
Signed off — Alteration
PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED AS PER PLANS. LIVE LOAD 300 LBS PER SQUARE FEET. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
B00916006-I1
01/04/2024
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
12/18/2023
Permit issued — General Construction
B00788658-I1-GC
12/14/2023
Permit issued — Structural
B00788658-S4-ST
10/12/2023
Permit issued — Plumbing
B00788658-S1-PL
09/12/2023
Permit issued — Sidewalk Shed
B00916006-I1-SH
08/11/2023
Permit issued — Structural
B00788658-S4-ST
08/09/2023
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-P2
08/09/2023
Permit issued — Sidewalk Shed
B00916006-I1-SH
08/08/2023
Filed — Alteration
PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED AS PER PLANS. LIVE LOAD 300 LBS PER SQUARE FEET. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY, OR EGRESS UNDER THIS APPLICATION.
B00916006-I1
08/08/2023
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-P1
08/04/2023
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-S4
07/21/2023
Permit issued — Plumbing
B00788658-S1-PL
07/13/2023
Permit issued — General Construction
B00788658-I1-GC
06/28/2023
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-S2
05/18/2023
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-S1
09/12/2022
Filed — Alteration CO
Convert from 2-family to 1-family residence, no change to occupancy class. Raise roof to provide fully occupiable 4th floor. Replace stairs from 2nd to 4th floor to remove original winder sections. Install bathrm at 4th fl. Legalize 1st fl horiz. ext'n.
B00788658-I1
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWGeneral ConstructionPermit IssuedDESIGN TECH CONSTRUCT COR12/18/2023
DOB NOWStructuralPermit IssuedDESIGN TECH CONSTRUCT COR12/14/2023
DOB NOWPlumbingPermit IssuedASPECT PLBNG&HTNG CO LLC10/12/2023
DOB NOWSidewalk ShedSigned-offEMPIRE CITY CONSTRUCTION09/12/2023
DOB NOWStructuralPermit IssuedDESIGN TECH CONSTRUCT COR08/11/2023
DOB NOWSidewalk ShedSigned-offEMPIRE CITY CONSTRUCTION08/09/2023
DOB NOWPlumbingPermit IssuedASPECT PLBNG&HTNG CO LLC07/21/2023
DOB NOWGeneral ConstructionPermit IssuedDESIGN TECH CONSTRUCT COR07/13/2023
1 project · most recent 08/09/2023
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
08/09/2023Permit IssuedDESIGN TECH CONSTRUCT CORHeating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Mitsubishi Electric MFZ-KJ12NA 12,000 BTU · Split System ×5
MFZ-KJ09NA 9,000 BTU · Split System ×1
MFZ-KJ18NA 18,000 BTU · Fan Coil Indoor ×1
MXZ-SM48NAMHZ-U1 54,000 BTU · Heat Pump Outdoor ×1
— MXZ-3C30NAHZ3-U1 28,600 BTU · Heat Pump Outdoor ×1
Ventilation
Panasonic WhisperFit DC FV-0511VF1 50 CFM · Exhaust Fan ×1
1 project · most recent 08/09/2023
Gas Water/Sanitary
FiledStatusContractorScope
08/09/2023Permit IssuedASPECT PLBNG&HTNG CO LLCGas, Water/Sanitary
2 projects · most recent 05/14/2024
General Wiring
FiledStatusContractorScope
05/14/2024CompleteSUNBIRD ELECTRICAL CONTRGeneral Wiring
08/09/2023CompleteRICHARD NEU—
1 project · most recent 08/09/2023
Steel Masonry Wood
FiledStatusContractorScope
08/09/2023Permit IssuedDESIGN TECH CONSTRUCT CORSteel, Masonry, Wood
▾Field Inspections (DOB CAP) — 1
DateTypeResultReport
01/04/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 34
DateRequirementInspectorRole
08/15/2023Energy Code Compliance InspectionsJohn Hathewayprogress
08/15/2023Fenestration and door U-factor and product ratingsJohn Hathewayenergy_progress
08/15/2023Fenestration air leakageJohn Hathewayenergy_progress
08/15/2023Interior lighting powerJohn Hathewayenergy_progress
08/15/2023Insulation placement and R valuesJohn Hathewayenergy_progress
08/15/2023Air barrier - visual inspectionJohn Hathewayenergy_progress
08/15/2023Fenestration areasJohn Hathewayenergy_progress
08/15/2023Fire-Resistance Rated ConstructionJohn Hathewayprogress
08/15/2023Fire-Resistant Penetrations and JointsJohn Hathewayspecial
08/15/2023Structural Stability – Alterations of existing buildingsJohn Hathewayspecial
08/14/2023Fire-Resistant Penetrations and JointsJohn Hathewayspecial
08/14/2023Energy Code Compliance InspectionsJohn Hathewayprogress
08/14/2023HVAC-R and service water piping design and insulationJohn Hathewayenergy_progress
08/04/2023HVAC-R and service water piping design and insulationJohn Hathewayenergy_progress
08/04/2023Fire-Resistant Penetrations and JointsJohn Hathewayspecial
08/04/2023Energy Code Compliance InspectionsJohn Hathewayprogress
08/03/2023Fenestration areasJohn Hathewayenergy_progress
08/03/2023Structural Stability – Alterations of existing buildingsJohn Hathewayspecial
08/03/2023Energy Code Compliance InspectionsJohn Hathewayprogress
08/03/2023Fire-Resistance Rated ConstructionJohn Hathewayprogress
08/03/2023Fenestration air leakageJohn Hathewayenergy_progress
08/03/2023Air barrier - visual inspectionJohn Hathewayenergy_progress
08/03/2023Fenestration and door U-factor and product ratingsJohn Hathewayenergy_progress
08/03/2023Insulation placement and R valuesJohn Hathewayenergy_progress
08/03/2023Interior lighting powerJohn Hathewayenergy_progress
Latest 25 of 34.
▾Documents — 62 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
08/27/2026B00788658-P2Request digital key ↗
08/27/2026B00788658-S4Request digital key ↗
08/27/2026B00788658-S1Request digital key ↗
Showing 3 of 8 on file for this type
▸Zoning, Tax Lot & Property Records3
▸DOB NOWZD1: DOB Zoning Diagram2
08/13/2026B00788658-P1Open ↗
08/13/2026B00788658-I1Open ↗
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B00788658-I1Open ↗
▸Seals & Professional Certifications36
▸DOB NOWProgress Inspector Seal & Signature23
08/27/2026B00788658-P3Open ↗
08/27/2026B00788658-P2Open ↗
08/27/2026B00788658-P2Open ↗
Showing 3 of 23 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature8
08/27/2026B00916006-I1Open ↗
08/13/2026B00788658-S2Open ↗
08/13/2026B00788658-I1Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature5
08/27/2026B00788658-P3Open ↗
08/27/2026B00788658-P2Open ↗
08/24/2026B00788658-S1Open ↗
Showing 3 of 5 on file for this type
▸Safety & Tenant Protection3
▸DOB NOWStreet Tree Checklist2
08/13/2026B00788658-P1Open ↗
08/13/2026B00788658-I1Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/13/2026B00788658-I1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form4
08/13/2026B00788658-I1Open ↗
08/13/2026B00788658-S1Open ↗
08/13/2026B00788658-S2Open ↗
Showing 3 of 4 on file for this type
▸Other Documents8
▸DOB NOWSite Survey: Initial2
08/13/2026B00788658-I1Open ↗
08/13/2026B00788658-P1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone2
08/13/2026B00788658-I1Open ↗
08/13/2026B00788658-P1Open ↗
▸DOB NOWPlot Diagram2
08/13/2026B00788658-P1Open ↗
08/13/2026B00788658-I1Open ↗
▸DOB NOWProperty Ownership Certification2
08/13/2026B00788658-P1Open ↗
08/13/2026B00788658-I1Open ↗