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Miscellaneous one family
174 12 STREET
BROOKLYN · BIN 3023098
💬 Discuss this project
1899Year Built
2Stories
A9Building Class
R6BZoning
1,716 sfGross Floor Area
1Units
FDNY Report ↗
Miscellaneous one family · 2,500 sf lot · 0.69 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalEquipment
Roof1p · 1 filing · 3 docs
Floor 11p · 1 filing · 20 docs
Cellar3p · 2 filings · 20 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
180 12 ST409/13/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
DNB ENGINEERING PLLC507/21/2026
CQ&J CORPORATION307/01/2026
THOMAS C. TUNG, P.E.104/01/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
SIMON7555107/01/2026
Building Lifecycle
All (65)Filed (9)Objection (26)Special Inspection (30)
08/28/2026
Objection resolved — Resolved
08/24/2026
Objection resolved — Resolved
08/24/2026
Objection resolved — Resolved
08/19/2026
Objection raised — Other
08/19/2026
Objection resolved — Resolved
08/18/2026
Objection raised — Other
08/10/2026
Objection resolved — Resolved
08/10/2026
Objection resolved — Resolved
08/04/2026
Objection raised — Other
08/04/2026
Objection raised — Other
07/30/2026
Objection raised — Other
07/30/2026
Objection raised — Other
07/30/2026
Objection raised — Other
07/30/2026
Objection resolved — Addressed
07/22/2026
Objection resolved — Addressed
07/21/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S5
07/21/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S2
07/21/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S3
07/21/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S4
07/17/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
07/17/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
07/17/2026
Special inspection requirement — Structural Cold-Formed Steel
07/17/2026
Special inspection requirement — Structural Steel - Details
07/17/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/17/2026
Special inspection requirement — Structural Steel - High Strength Bolting
07/17/2026
Special inspection requirement — Concrete - Cast-In-Place
07/17/2026
Special inspection requirement — Post-installed Anchors
07/17/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/16/2026
Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing
07/16/2026
Special inspection requirement — Concrete - Cast-In-Place
07/16/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/16/2026
Special inspection requirement — Underpinning
07/16/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
07/16/2026
Special inspection requirement — Subsurface Investigations (Borings/Test Pits)
07/13/2026
Objection resolved — Addressed
07/10/2026
Objection raised — Other
07/01/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S1
07/01/2026
Filed — Alteration
INSTALL TEMPORARY CONSTRUCTION FENCE FOR ALT-NB JOB(#B01372489) WITH FACADE WORK.
B01418543-I1
07/01/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
PROPOSED TWO STORY VERTICAL & HORIZONTAL ENLARGEMENT WITH PENTHOUSE ON EXISTING 2-STORY RESIDENTIAL BUILDING.CONVERT EXISTING 1-DWELLING UNITS INTO 4-DWELLING UNITS.OBTAIN NEW CERTIFICATE OF OCCUPANCY.
B01372489-S6
06/29/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
SIMON JIANG
06/29/2026
Special inspection requirement — Smoke Control Systems Testing
SIMON JIANG
06/29/2026
Special inspection requirement — Heating Systems
SIMON JIANG
06/25/2026
Special inspection requirement — Duct leakage testing, insulation and design
CALVIN TRAN
06/25/2026
Special inspection requirement — Energy Code Compliance Inspections
CALVIN TRAN
06/25/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
06/25/2026
Special inspection requirement — Shutoff dampers
CALVIN TRAN
06/25/2026
Special inspection requirement — Maintenance information
CALVIN TRAN
06/25/2026
Special inspection requirement — HVAC-R and service water heating equipment
CALVIN TRAN
06/25/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
CALVIN TRAN
06/24/2026
Special inspection requirement — Footing and Foundation
06/24/2026
Special inspection requirement — HVAC-R and service water heating equipment
CALVIN TRAN
06/24/2026
Special inspection requirement — HVAC-R and service water heating system controls
CALVIN TRAN
06/24/2026
Special inspection requirement — Final
CALVIN TRAN
06/24/2026
Special inspection requirement — Mechanical Systems
SIMON JIANG
06/16/2026
Filed — Alteration
DEMOLITION OF EXISTING BUILDING SUPERSTRUCTURE AND PARTIAL DEMOLITION OF FOUNDATION.
B01417649-I1
05/04/2026
Objection resolved — Addressed
04/30/2026
Objection resolved — Addressed
04/30/2026
Objection resolved — Addressed
04/23/2026
Objection raised — Zoning
04/23/2026
Objection raised — Other
Latest 60 of 65 events.
Nothing on file for this building.
1 job · most recent 07/21/2026
Heating and Air Conditioning Systems Heating Systems
FiledStatusContractorScopeMake / Model / Capacity
07/21/2026——Heating and Air Conditioning Systems, Heating Systems
Heat / Cool
Daikin 3MXM24AVJU 24,000 BTU · Condensing Unit ×4
Heating
Daikin FDMA24AVJU9 24,000 BTU · Fan Coil Indoor ×4
1 job · most recent 07/21/2026
Gas Storm Water/Sanitary
FiledStatusContractorScope
07/21/2026——Gas, Storm, Water/Sanitary
1 job · most recent 07/21/2026
Steel Concrete
FiledStatusContractorScope
07/21/2026——Steel, Concrete
1 job · most recent 07/01/2026
Fence
FiledStatusContractorScope
07/01/2026——Fence
▾Special Inspection Requirements (DOB NOW) — 54
DateRequirementInspectorRole
07/17/2026Subsurface Investigations (Borings/Test Pits)—special
07/17/2026Subsurface Investigations (Borings/Test Pits)—special
07/17/2026Structural Cold-Formed Steel—special
07/17/2026Structural Steel - Details—special
07/17/2026Structural Stability – Alterations of existing buildings—special
07/17/2026Structural Steel - High Strength Bolting—special
07/17/2026Concrete - Cast-In-Place—special
07/17/2026Post-installed Anchors—special
07/17/2026Structural Stability – Alterations of existing buildings—special
07/16/2026Excavations - Sheeting, Shoring, and Bracing—special
07/16/2026Concrete - Cast-In-Place—special
07/16/2026Structural Stability – Alterations of existing buildings—special
07/16/2026Underpinning—special
07/16/2026Structural Stability – Alterations of existing buildings—special
07/16/2026Subsurface Investigations (Borings/Test Pits)—special
06/29/2026Fire-Resistant Penetrations and JointsSIMON JIANGspecial
06/29/2026Smoke Control Systems TestingSIMON JIANGspecial
06/29/2026Heating SystemsSIMON JIANGspecial
06/25/2026Duct leakage testing, insulation and designCALVIN TRANenergy_progress
06/25/2026Energy Code Compliance InspectionsCALVIN TRANprogress
06/25/2026HVAC-R and service water heating system controlsCALVIN TRANenergy_progress
06/25/2026Shutoff dampersCALVIN TRANenergy_progress
06/25/2026Maintenance informationCALVIN TRANenergy_progress
06/25/2026HVAC-R and service water heating equipmentCALVIN TRANenergy_progress
06/25/2026HVAC-R and service water piping design and insulationCALVIN TRANenergy_progress
Latest 25 of 54.
▾Documents — 51 on file (BIS + DOB NOW)
▸Plans & Drawings9
▸DOB NOWPlans/Sketch9
08/17/2026B01372489-S3Request digital key ↗
08/17/2026B01372489-I1Request digital key ↗
08/17/2026B01372489-S4Request digital key ↗
Showing 3 of 9 on file for this type
▸Zoning, Tax Lot & Property Records2
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/17/2026B01372489-I1Open ↗
▸DOB NOWZD1: DOB Zoning Diagram1
08/17/2026B01372489-I1Open ↗
▸Seals & Professional Certifications23
▸DOB NOWProgress Inspector Seal & Signature13
09/27/2026B01372489-S6Open ↗
09/27/2026B01372489-S6Open ↗
09/27/2026B01372489-S6Open ↗
Showing 3 of 13 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature9
08/17/2026B01372489-S3Open ↗
08/17/2026B01372489-S2Open ↗
08/17/2026B01372489-S4Open ↗
Showing 3 of 9 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature1
09/27/2026B01372489-S6Open ↗
▸Trade Schedules & Equipment1
▸DOB NOWDEP: Sewer Certification (Sanitary/Storm)1
08/17/2026B01372489-I1Open ↗
▸Safety & Tenant Protection1
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/17/2026B01372489-I1Open ↗
▸Environmental & Asbestos8
▸DOB NOWDEP ACP-5: Asbestos Assessment Report8
08/17/2026B01372489-S1Open ↗
08/17/2026B01372489-I1Open ↗
08/17/2026B01372489-S6Open ↗
Showing 3 of 8 on file for this type
▸Inspections & Test Reports6
▸DOB NOWSOIL REPORT3
08/17/2026B01372489-S3Open ↗
08/17/2026B01372489-S5Open ↗
08/17/2026B01372489-S4Open ↗
▸DOB NOWTR4 Test Report and Plot Diagram3
08/17/2026B01372489-S3Open ↗
08/17/2026B01372489-S5Open ↗
08/17/2026B01372489-S4Open ↗
▸Other Documents1
▸DOB NOWProperty Ownership Certification1
08/17/2026B01372489-I1Open ↗