← Back
Two family converted from one family
903 UNION STREET
BROOKLYN · BIN 3024590
💬 Discuss this project
1889Year Built
3Stories
B3Building Class
R7BZoning
3,480 sfGross Floor Area
2Units
0 Open ViolationsFDNY Report ↗
Two family converted from one family · 1,688 sf lot · 2.06 FAR built · Flood zone X
Locations of Work
ArchitectureStructural
Roof3p · 1 filing · 20 docs
Floor 31p · 1 filing · 20 docs
Floor 2
Floor 11p · 1 filing · 20 docs
Cellar2p · 1 filing · 20 docs
Basement1p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
07/20/2022$3.7M—— → —$1,063/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
TAN ENGINEERING PC308/15/2024
ONLY IF ARCHITECTURE, PLLC208/15/2024
IVAN DESIGN ENG. ANALYSIS, PLLC108/15/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
ANZALONE ARCHITECTURE1203/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
TAN ENGINEERING, P.C.1291308/15/2024
Building Lifecycle
All (47)Filed (6)Violation (1)Objection (40)
04/21/2025
Objection raised — Structural
04/21/2025
Objection raised — Admin
04/11/2025
Objection resolved — Resolved
04/11/2025
Objection resolved — Resolved
04/10/2025
Objection resolved — Resolved
03/24/2025
Objection resolved — Addressed
11/20/2024
Objection raised — Other
11/20/2024
Objection resolved — Addressed
11/20/2024
Objection raised — Fire_Protection
11/08/2024
Objection resolved — Resolved
11/08/2024
Objection resolved — Resolved
11/04/2024
Objection resolved — Addressed
11/04/2024
Objection resolved — Addressed
11/04/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
10/30/2024
Objection resolved — Addressed
08/21/2024
Objection raised — Admin
08/21/2024
Objection raised — Scope
08/21/2024
Objection raised — Structural
08/21/2024
Objection raised — Structural
08/21/2024
Objection raised — Structural
08/21/2024
Objection raised — Structural
08/21/2024
Objection raised — Structural
08/21/2024
Objection raised — Other
08/21/2024
Objection resolved — Addressed
08/21/2024
Objection raised — Admin
08/19/2024
Objection raised — Zoning
08/19/2024
Objection raised — Other
08/19/2024
Objection raised — Other
08/19/2024
Objection raised — Zoning
08/19/2024
Objection raised — Other
08/19/2024
Objection raised — Zoning
08/19/2024
Objection raised — Zoning
08/19/2024
Objection raised — Zoning
08/19/2024
Objection raised — Other
08/19/2024
Objection raised — Other
08/15/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-S2
08/15/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-S5
08/15/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-S3
08/15/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-S4
08/15/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-S1
08/12/2024
Filed — Alteration CO
SPRINKLER WORK FILED IN CONJUNCTION WITH RENOVATION AND ENLARGEMENT OF EXISTING 2-FAMILY RESIDENCE. FULLY SPRINKLER THE BUILDING. SPRINKLER WATER SERVICE FILED UNDER SUBSEQUENT PLUMBING APPLICATION B01041212-S2.
B01041212-I1
08/30/1999
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
Nothing on file for this building.
1 project · most recent 08/15/2024
Sprinkler System
FiledStatusContractorScope
08/15/2024——Sprinkler System
1 project · most recent 08/15/2024
Steel Concrete Wood
FiledStatusContractorScope
08/15/2024——Steel, Concrete, Wood
1 project · most recent 08/15/2024
Fence
FiledStatusContractorScope
08/15/2024——Fence
▾Special Inspection Requirements (DOB NOW) — 34
DateRequirementInspectorRole
11/04/2024Protection of exposed foundation insulation—energy_progress
07/29/2024Permanent certificate—energy_progress
05/03/2024HVAC-R and service water piping design and insulationRoger Tanenergy_progress
05/03/2024Maintenance informationRoger Tanenergy_progress
05/03/2024Energy Code Compliance InspectionsRoger Tanprogress
05/03/2024HVAC-R and service water heating equipmentRoger Tanenergy_progress
05/03/2024HVAC-R and service water heating system controlsRoger Tanenergy_progress
05/02/2024Structural Wood Frame—progress
05/02/2024Concrete - Cast-In-Place—special
05/02/2024Construction Operations Influencing Adjacent Structures—special
05/02/2024Structural Steel - High Strength Bolting—special
05/02/2024Structural Steel - Welding—special
04/26/2024Structural Stability – Alterations of existing buildings—special
04/26/2024Construction Operations Influencing Adjacent Structures—special
04/26/2024Subsurface Investigations (Borings/Test Pits)—special
04/26/2024Subgrade Inspections—special
04/26/2024Concrete - Cast-In-Place—special
04/25/2024Fire-Resistant Penetrations and JointsRoger Tanspecial
04/25/2024Final—progress
04/25/2024Footing and Foundation—progress
04/25/2024Structural Steel - Details—special
04/25/2024Structural Stability – Alterations of existing buildings—special
04/25/2024Final—progress
04/25/2024Structural Cold-Formed Steel—special
04/24/2024Fenestration air leakage—energy_progress
Latest 25 of 34.
▾Documents — 48 on file (BIS + DOB NOW)
▸Plans & Drawings8
▸DOB NOWPlans/Sketch8
08/24/2026B01041212-P1Request digital key ↗
08/24/2026B01041212-S5Request digital key ↗
08/24/2026B01041212-S3Request digital key ↗
Showing 3 of 8 on file for this type
▸Applications & Permits7
▸DOB NOWLPC Approval/Permit7
08/13/2026B01041212-S5Open ↗
08/13/2026B01041212-I1Open ↗
08/13/2026B01041212-P2Open ↗
Showing 3 of 7 on file for this type
▸Zoning, Tax Lot & Property Records3
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B01041212-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/13/2026B01041212-I1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram1
08/13/2026B01041212-I1Open ↗
▸Seals & Professional Certifications11
▸DOB NOWDPL-1: Design Professional Seal & Signature8
08/13/2026B01041212-P2Open ↗
08/13/2026B01041212-S1Open ↗
08/13/2026B01041212-S2Open ↗
Showing 3 of 8 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
08/28/2026B01041212-S2Open ↗
08/28/2026B01041212-S2Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/28/2026B01041212-S2Open ↗
▸Safety & Tenant Protection1
▸DOB NOWStreet Tree Checklist1
08/13/2026B01041212-I1Open ↗
▸Environmental & Asbestos9
▸DOB NOWDEP ACP-5: Asbestos Assessment Report9
08/13/2026B01041212-S6Open ↗
08/13/2026B01041212-I1Open ↗
08/13/2026B01041212-S1Open ↗
Showing 3 of 9 on file for this type
▸Inspections & Test Reports3
▸DOB NOWSOIL REPORT2
08/13/2026B01041212-P2Open ↗
08/13/2026B01041212-S5Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram1
08/13/2026B01041212-S5Open ↗
▸Other Documents6
▸DOB NOWPlot Diagram3
08/13/2026B01041212-I1Open ↗
08/13/2026B01041212-P2Open ↗
08/13/2026B01041212-S5Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026B01041212-I1Open ↗
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone1
08/13/2026B01041212-I1Open ↗
▸DOB NOWProperty Ownership Certification1
08/13/2026B01041212-I1Open ↗