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Three families
155 UNDERHILL AVENUE
BROOKLYN · BIN 3029155
💬 Discuss this project
1897Year Built
3Stories
C0Building Class
R6BZoning
3,536 sfGross Floor Area
3Units
FDNY Report ↗
Three families · 1,680 sf lot · 2.1 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralMechanicalPlumbingFire ProtectionGeneral
Roof63p · 4 filings · 20 docs
Bulkhead1p · 1 filing · 20 docs
Floor 352p · 4 filings · 20 docs
Floor 260p · 4 filings · 20 docs
Floor 153p · 4 filings · 20 docs
Cellar59p · 4 filings · 20 docs
Basement20p · 2 filings · 20 docs
Sub-Basement31p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
06/28/2022$3.2M—Private party → Private party$905/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
ANZ CONSULTING ENGINEERING, PLLC1007/13/2026
BATLIBOI STUDIO/ ARCHITECTURE, PLLC211/14/2024
SILMAN510/21/2024
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
SOL BUILDING CONSULTING SERVICES1503/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
SAMI CONSTRUCTION & REMODGeneral Contractor1307/08/2026
LUME ELECTRIC INCElectrical203/22/2026
PACIFIC PLBG. & HTG. CORPFire Protection107/08/2026
PACIFIC PLBG&HTG CORPPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
OUTSOURCE SPECIAL INSPECT28271707/13/2026
PSI AGENCY INC.254205/21/2024
Building Lifecycle
All (123)Filed (17)Permit Issued (9)Inspection (13)Objection (54)Special Inspection (30)
08/31/2026
Objection resolved — Resolved
08/17/2026
Objection resolved — Resolved
08/17/2026
Objection resolved — Resolved
08/17/2026
Objection resolved — Resolved
08/17/2026
Objection resolved — Resolved
08/17/2026
Objection resolved — Resolved
08/04/2026
Objection raised — Scope
08/04/2026
Objection raised — Cost
08/04/2026
Objection raised — Scope
08/04/2026
Objection raised — Structural
08/04/2026
Objection raised — Structural
08/04/2026
Objection raised — Scope
07/23/2026
Special inspection requirement — Maintenance information
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Mechanical Systems
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Final
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Energy Code Compliance Inspections
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Shutoff dampers
JONAR MADRIAGA
07/23/2026
Special inspection requirement — HVAC-R and service water heating equipment
JONAR MADRIAGA
07/23/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
JONAR MADRIAGA
07/23/2026
Special inspection requirement — Duct leakage testing, insulation and design
JONAR MADRIAGA
07/23/2026
Special inspection requirement — HVAC-R and service water heating system controls
JONAR MADRIAGA
07/13/2026
Filed — Alteration
Installation of sprinkler system (45 new heads). As per plans filed herewith. No change to use, occupancy, or egress.
B00930096-P2
07/08/2026
Filed — Alteration
Removal of all Existing HVAC Systems and Installation of (3) Air Condensers on the Roof, designed to feed Air Handlers to all floors (Cel- 003). No change to use occupancy or egress
B00818830-P3
04/13/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
04/09/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
JONAR MADRIAGA
04/09/2026
Special inspection requirement — Post-installed Anchors
JONAR MADRIAGA
04/09/2026
Special inspection requirement — Sprinkler Systems
JONAR MADRIAGA
03/04/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
02/18/2026
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
06/30/2025
Permit issued — Mechanical Systems
B00818830-I1-MS
06/30/2025
Permit issued — General Construction
B00811505-I1-GC
06/25/2025
Permit issued — Structural
B00818840-I1-ST
05/30/2025
Special inspection requirement — HVAC-R and service water heating system controls
JONAR MADRIAGA
05/30/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
JONAR MADRIAGA
05/30/2025
Special inspection requirement — Alternative Materials - OTCR Buildings Bulletin Number
ALBERT ZIRINO
05/30/2025
Special inspection requirement — HVAC-R and service water heating equipment
JONAR MADRIAGA
05/30/2025
Special inspection requirement — Maintenance information
JONAR MADRIAGA
05/30/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
JONAR MADRIAGA
05/19/2025
Filed — Alteration
Installation, Relocation and Replacement of plumbing fixtures for the renovation and conversion of a 2-family residence. As per plans filed herewith. No change to use, occupancy or egress.
B00818834-P3
05/12/2025
Special inspection requirement — Post-installed Anchors
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Steel - High Strength Bolting
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Wood Frame
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Final
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Steel - Welding
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Steel - Details
JONAR MADRIAGA
05/12/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
JONAR MADRIAGA
05/02/2025
Objection resolved — Addressed
04/22/2025
Special inspection requirement — Fenestration areas
JONAR MADRIAGA
04/22/2025
Special inspection requirement — Lighting in dwelling units
JONAR MADRIAGA
04/22/2025
Special inspection requirement — Interior lighting power
JONAR MADRIAGA
04/22/2025
Special inspection requirement — Fenestration air leakage
JONAR MADRIAGA
03/07/2025
Filed — Alteration
Installation, Relocation and Replacement of plumbing fixtures for the renovation and conversion of a 2-family residence. As per plans filed herewith. No change to use, occupancy or egress.
B00818834-P2
02/21/2025
Inspection — Certified Storm Drainage-ST-Piping-Roughing
Certified
View inspection ↗
02/21/2025
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
02/21/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
02/21/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
02/06/2025
Inspection — Pass-Final PL - Up to 3 Requested Floors
Pass
View inspection ↗
12/16/2024
Objection resolved — Addressed
12/16/2024
Objection resolved — Addressed
Latest 60 of 123 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offSAMI CONSTRUCTION & REMOD06/30/2025
DOB NOWGeneral ConstructionPermit IssuedSAMI CONSTRUCTION & REMOD06/30/2025
DOB NOWStructuralSigned-offSAMI CONSTRUCTION & REMOD06/25/2025
DOB NOWSprinklersPermit IssuedPACIFIC PLBG. & HTG. CORP12/05/2024
DOB NOWStructuralSigned-offSAMI CONSTRUCTION & REMOD06/20/2024
DOB NOWFoundationSigned-offSAMI CONSTRUCTION & REMOD06/20/2024
DOB NOWPlumbingPermit IssuedPACIFIC PLBG&HTG CORP06/04/2024
DOB NOWGeneral ConstructionPermit IssuedSAMI CONSTRUCTION & REMOD05/14/2024
DOB NOWMechanical SystemsSigned-offSAMI CONSTRUCTION & REMOD05/14/2024
1 project · most recent 07/08/2026
Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
07/08/2026Signed-offSAMI CONSTRUCTION & REMODAir Conditioning Systems, Ventilation Systems
Cooling
Mitsubishi Electric MSZ-FS 12NA-U1 10,900 BTU · Split System ×4
PEFY -P24NMA U-E4 24,000 BTU · Vrf Indoor ×4
MXZ-3C24NAHZ3-U1 22,000 BTU · Heat Pump Outdoor ×1
MXZ-SM36NAMHZ-U1 36,000 BTU · Heat Pump Outdoor ×2
MXZ-SM48NaMHZ-U1 48,000 BTU · Heat Pump Outdoor ×2
PVFY -P24NAM U-E1 24,000 BTU · Vrf Indoor ×2
PVFY-P12NAMU-E1 12,000 BTU · Vrf Indoor ×3
MXZ-3C24NAHZ4-U1 22,000 BTU · Heat Pump Outdoor ×2
MXZ-SM36NAMHZ 36,000 BTU · Heat Pump Outdoor ×1
MSZ-FS12NA-U1 10,900 BTU · Fan Coil Indoor ×2
PEFY-P24NMAU-E4 24,000 BTU · Vrf Indoor ×2
MXZ-SM48NAMHZ2-U1 48,000 BTU · Heat Pump Outdoor ×1
PVFY-P24NAMU-E1 24,000 BTU · Vrf Indoor ×1
Neptronic CMU12B060DD 600 CFM · Makeup Air ×3
Ventilation
Titus 350RL 900 CFM · Exhaust Fan ×6
FL-10 80 CFM ×3
FL-15 80 CFM · Other ×3
FL-20 80 CFM ×3
FL-25 80 CFM · Other ×3
HT-10 60 CFM ×3
HT-20 85 CFM ×3
JT-10 100 CFM ×3
JT-15 135 CFM · Other ×3
JT-20 150 CFM ×3
JT-25 150 CFM ×3
Panasonic FV-05-11VK2 90 CFM · Exhaust Fan ×15
1 project · most recent 07/13/2026
FiledStatusContractorScope
07/13/2026Permit IssuedPACIFIC PLBG. & HTG. CORP45 heads
1 project · most recent 05/19/2025
Gas Storm Water/Sanitary
FiledStatusContractorScope
05/19/2025Permit IssuedPACIFIC PLBG&HTG CORPGas, Storm, Water/Sanitary
1 project · most recent 04/28/2026
General Wiring
FiledStatusContractorScope
04/28/2026CompleteLUME ELECTRIC INCGeneral Wiring
2 projects · most recent 10/21/2024
Steel Wood
FiledStatusContractorScope
10/21/2024Signed-offSAMI CONSTRUCTION & REMODSteel, Wood
05/21/2024Signed-offSAMI CONSTRUCTION & REMOD2 scope_items
▾Field Inspections (DOB CAP) — 13
DateTypeResultReport
04/13/2026Pass-Final CND-Occupancy InspectionPassView ↗
03/04/2026Pass-Final CND-Occupancy InspectionPassView ↗
02/18/2026Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
02/21/2025Certified Storm Drainage-ST-Piping-RoughingCertifiedView ↗
02/21/2025Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
02/21/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
02/21/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
02/06/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
08/06/2024Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
04/11/2024Certified Gas-Gas-Piping-RoughingCertifiedView ↗
04/11/2024Certified Storm Drainage-ST-Piping-RoughingCertifiedView ↗
02/13/2024Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
02/13/2024Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 59
DateRequirementInspectorRole
07/23/2026Maintenance informationJONAR MADRIAGAenergy_progress
07/23/2026Mechanical SystemsJONAR MADRIAGAspecial
07/23/2026Fire-Resistant Penetrations and JointsJONAR MADRIAGAspecial
07/23/2026FinalJONAR MADRIAGAprogress
07/23/2026Energy Code Compliance InspectionsJONAR MADRIAGAprogress
07/23/2026Shutoff dampersJONAR MADRIAGAenergy_progress
07/23/2026HVAC-R and service water heating equipmentJONAR MADRIAGAenergy_progress
07/23/2026HVAC-R and service water piping design and insulationJONAR MADRIAGAenergy_progress
07/23/2026Duct leakage testing, insulation and designJONAR MADRIAGAenergy_progress
07/23/2026HVAC-R and service water heating system controlsJONAR MADRIAGAenergy_progress
04/09/2026Fire-Resistant Penetrations and JointsJONAR MADRIAGAspecial
04/09/2026Post-installed AnchorsJONAR MADRIAGAspecial
04/09/2026Sprinkler SystemsJONAR MADRIAGAspecial
05/30/2025HVAC-R and service water heating system controlsJONAR MADRIAGAenergy_progress
05/30/2025Fire-Resistant Penetrations and JointsJONAR MADRIAGAspecial
05/30/2025Alternative Materials - OTCR Buildings Bulletin NumberALBERT ZIRINOspecial
05/30/2025HVAC-R and service water heating equipmentJONAR MADRIAGAenergy_progress
05/30/2025Maintenance informationJONAR MADRIAGAenergy_progress
05/30/2025HVAC-R and service water piping design and insulationJONAR MADRIAGAenergy_progress
05/12/2025Post-installed AnchorsJONAR MADRIAGAspecial
05/12/2025Structural Steel - High Strength BoltingJONAR MADRIAGAspecial
05/12/2025Structural Wood FrameJONAR MADRIAGAprogress
05/12/2025FinalJONAR MADRIAGAprogress
05/12/2025Structural Steel - WeldingJONAR MADRIAGAspecial
05/12/2025Structural Steel - DetailsJONAR MADRIAGAspecial
Latest 25 of 59.
▾Documents — 117 on file (BIS + DOB NOW)
▸Plans & Drawings17
▸DOB NOWPlans/Sketch17
08/25/2026B00818844-I1Request digital key ↗
08/25/2026B00818844-P1Request digital key ↗
08/25/2026B00930096-I1Request digital key ↗
Showing 3 of 17 on file for this type
▸Applications & Permits14
▸DOB NOWLPC Approval/Permit14
08/23/2026B00818830-P3Open ↗
08/13/2026B00818840-P2Open ↗
08/13/2026B00811505-I1Open ↗
Showing 3 of 14 on file for this type
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026B00811505-I1Open ↗
▸Seals & Professional Certifications73
▸DOB NOWProgress Inspector Seal & Signature29
09/27/2026B00818840-P2Open ↗
09/27/2026B00818840-P2Open ↗
08/31/2026B00818830-I1Open ↗
Showing 3 of 29 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature27
09/27/2026B00818840-P2Open ↗
09/27/2026B00818840-P2Open ↗
09/27/2026B00818840-P2Open ↗
Showing 3 of 27 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature17
08/25/2026B00818844-P1Open ↗
08/25/2026B00818844-I1Open ↗
08/25/2026B00930096-P1Open ↗
Showing 3 of 17 on file for this type
▸Safety & Tenant Protection2
▸DOB NOWStreet Tree Checklist2
08/13/2026B00811505-P1Open ↗
08/13/2026B00811505-I1Open ↗
▸Environmental & Asbestos6
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form6
08/25/2026B00818844-I1Open ↗
08/25/2026B00930096-I1Open ↗
08/23/2026B00818840-I1Open ↗
Showing 3 of 6 on file for this type
▸Inspections & Test Reports1
▸DOB NOWGeotechnical Report (BC 1803.6)1
08/13/2026B00818844-I1Open ↗
▸Other Documents3
▸DOB NOWProperty Ownership Certification2
08/23/2026B00811505-P1Open ↗
08/23/2026B00811505-I1Open ↗
▸DOB NOWFinal Survey1
08/23/2026B00811505-I1Open ↗