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Three families
523 3 STREET
BROOKLYN · BIN 3025333
💬 Discuss this project
1899Year Built
3Stories
C0Building Class
R6BZoning
3,960 sfGross Floor Area
3Units
Rent Stabilized0 Open ViolationsFDNY Report ↗
Three families · 1,900 sf lot · 2.08 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralElectricalMechanicalFire Protection
Roof3p · 1 filing · 5 docs
Floor 344p · 1 filing · 20 docs
Floor 244p · 1 filing · 20 docs
Floor 142p · 1 filing · 20 docs
Cellar46p · 1 filing · 20 docs
Basement43p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
10/27/2021$4.5M—Private party → Private party$1,130/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
RJD ENGINEERING LLC308/24/2026
BAXT INGUI ARCHITECTS1003/27/2026
GAMILL ENGINEERING, P.C303/27/2026
NY BUILDING ASSOCIATES INC107/02/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
GAMILL ENGINEERING, PC2403/21/2026
BROOKLYN SOLARWORKS103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
R&S ELITE CONSTRUCTIONGeneral Contractor1106/28/2026
ORBIT SPRINKLER CORPFire Protection207/08/2026
BROOKLYN SOLARWORKS LLCGeneral Contractor203/21/2026
GREASER, STANLEYElectrical103/21/2026
H.K. MECHANICAL SVC CORPPlumbing107/08/2026
M J DONNELLY CO INCElectrical103/21/2026
WERTZ, ROLANDElectrical103/21/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
TRISTATE PLANNING ENGINEE8344208/24/2026
MACIA INSPECTION & TESTIN4021404/01/2026
NKM ENGINEERING PLLC6244107/02/2025
Building Lifecycle
All (135)Filed (17)Permit Issued (9)Signed Off (5)Violation (10)Inspection (6)Objection (58)Special Inspection (30)
08/28/2026
Signed off — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-S3
08/26/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Nicholas Palumbo
08/26/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Nicholas Palumbo
08/26/2026
Special inspection requirement — Final
Nicholas Palumbo
08/26/2026
Special inspection requirement — Shutoff dampers
Nicholas Palumbo
08/26/2026
Special inspection requirement — Mechanical Systems
Nicholas Palumbo
08/26/2026
Special inspection requirement — Maintenance information
Nicholas Palumbo
08/26/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Nicholas Palumbo
08/26/2026
Special inspection requirement — HVAC-R and service water heating equipment
Nicholas Palumbo
08/26/2026
Special inspection requirement — HVAC-R and service water heating system controls
Nicholas Palumbo
08/26/2026
Special inspection requirement — Energy Code Compliance Inspections
Nicholas Palumbo
08/24/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-A3
08/21/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
Nicholas Palumbo
08/21/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
Nicholas Palumbo
08/21/2026
Special inspection requirement — HVAC-R and service water heating equipment
Nicholas Palumbo
08/21/2026
Special inspection requirement — HVAC-R and service water heating system controls
Nicholas Palumbo
08/21/2026
Special inspection requirement — Maintenance information
Nicholas Palumbo
08/21/2026
Special inspection requirement — HVAC-R and service water piping design and insulation
Nicholas Palumbo
08/21/2026
Special inspection requirement — Final
Nicholas Palumbo
08/21/2026
Special inspection requirement — Energy Code Compliance Inspections
Nicholas Palumbo
08/21/2026
Special inspection requirement — Shutoff dampers
Nicholas Palumbo
08/21/2026
Special inspection requirement — Mechanical Systems
Nicholas Palumbo
07/21/2026
Signed off — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-S2
06/11/2026
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
05/20/2026
Signed off — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-S1
05/19/2026
Special inspection requirement — Construction Utilizing CLT or SCL, Type IV
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Subsurface Conditions – Fill Placement & In-Place Density
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Structural Steel - Details
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Masonry
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Structural Cold-Formed Steel
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Structural Steel - Welding
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Structural Steel - High Strength Bolting
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Post-installed Anchors
CHUNG CHING JEN
05/19/2026
Special inspection requirement — Subgrade Inspections
CHUNG CHING JEN
04/20/2026
Signed off — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-S4
04/16/2026
Objection raised — Other
04/06/2026
Objection raised — Scope
04/01/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-P9
03/27/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-A2
03/27/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-A1
03/19/2026
Inspection — Pass-Final SP - Up to 3 Requested Floors
Pass
View inspection ↗
03/10/2026
Inspection — Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic Test
Certified
View inspection ↗
03/09/2026
Objection resolved — Addressed
03/03/2026
Objection raised — Plumbing
02/20/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-P8
02/18/2026
Permit issued — Sprinklers
B01038461-S4-EW-SP
02/03/2026
Signed off — Alteration
INSTALL SOLAR PV ON EXISTING ROOFTOP. NO CHANGE IN USE, OCCUPANCY, OR EGRESS.
B01246757-I1
01/06/2026
Filed — Alteration CO
INSTALLATION OF NEW MECHANICAL SYSTEM IN ASSOCIATION WITH RENOVATION THROUGHOUT EXISTING 4-STORY RESIDENTIAL BUILDING. INSTALL NEW VRF HEAT PUMPS AND ASSOCIATED PIPING AND DUCTWORK. INSTALL NEW ERV VENTILATION SYSTEM.
B01038461-P7
10/14/2025
Permit issued — Mechanical Systems
B01038461-S3-MS
07/09/2025
Permit issued — Solar
B01246757-I1-SL
07/08/2025
Permit issued — General Construction
B01038461-I1-GC
07/08/2025
Permit issued — Foundation
B01038461-S2-GC-CX
07/02/2025
Filed — Alteration
INSTALL SOLAR PV ON EXISTING ROOFTOP. NO CHANGE IN USE, OCCUPANCY, OR EGRESS.
B01246757-I1
06/05/2025
Violation issued (HPD, closed)
A
06/03/2025
Objection resolved — Addressed
06/02/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
05/21/2025
Objection resolved — Addressed
05/15/2025
Objection raised — Other
05/15/2025
Objection raised — Other
Latest 60 of 135 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSprinklersSigned-offORBIT SPRINKLER CORP02/18/2026
DOB NOWMechanical SystemsSigned-offR&S ELITE CONSTRUCTION10/14/2025
DOB NOWSolarSigned-offBROOKLYN SOLARWORKS LLC07/09/2025
DOB NOWGeneral ConstructionPermit IssuedR&S ELITE CONSTRUCTION07/08/2025
DOB NOWFoundationSigned-offR&S ELITE CONSTRUCTION07/08/2025
DOB NOWSprinklersSigned-offORBIT SPRINKLER CORP03/20/2025
DOB NOWFoundationSigned-offR&S ELITE CONSTRUCTION11/18/2024
DOB NOWGeneral ConstructionPermit IssuedR&S ELITE CONSTRUCTION10/24/2024
DOB NOWPlumbingSigned-offH.K. MECHANICAL SVC CORP10/10/2024
BISOTISSUEDVIRGO & GIFLIO CONSTRUCTION CORP10/01/2003
1 project · most recent 08/24/2026
Heating and Air Conditioning Systems Ventilation Systems
FiledStatusContractorScopeMake / Model / Capacity
08/24/2026Signed-offR&S ELITE CONSTRUCTIONHeating and Air Conditioning Systems, Ventilation Systems
Heat / Cool
Lg ARNU093MAA4 9,600 BTU · Vrf Indoor ×2
ARNU153MAA4 19,100 BTU · Vrf Indoor ×2
ARUB036GSS5 36,000 BTU · Vrf Outdoor ×2
ARNU053SJS4 5,500 BTU · Vrf Indoor ×1
ARNU123NJA4 12,000 BTU · Vrf Indoor ×1
Mitsubishi Electric MXZ-SM42NAMHZ 42,000 BTU · Condensing Unit ×2
PEFY-P12NMAU-E4 12,000 BTU · Vrf Indoor ×1
PEFY-P12NMAU-EF 12,000 BTU · Vrf Indoor ×1
PEFY-P18NMAU-E5 18,000 BTU · Vrf Indoor ×1
PVFY-P12NAMU-E1 12,000 BTU · Vrf Indoor ×1
PVFY-P18NAMU-E1 18,000 BTU · Vrf Indoor ×1
TPVFY-P12AM141A 12,000 BTU · Vrf Indoor ×1
Ventilation
Zehnder COMFO AIR MODEL Q600 363 CFM · Erv ×4
Panasonic FV-0510VS1 50 CFM · Exhaust Fan ×1
FV-0511VF1 50 CFM · Exhaust Fan ×1
1 project · most recent 08/24/2026
Sprinkler System
FiledStatusContractorScope
08/24/2026Signed-offORBIT SPRINKLER CORPSprinkler System
1 project · most recent 08/24/2026
Gas Storm Water/Sanitary
FiledStatusContractorScope
08/24/2026Signed-offH.K. MECHANICAL SVC CORPGas, Storm, Water/Sanitary
2 projects · most recent 05/05/2026
General Wiring
FiledStatusContractorScope
05/05/2026CompleteDENMAR ELECTRIC CORPGeneral Wiring
06/25/2025CompleteBROOKYLN SOLARWORKS, LLC—
1 project · most recent 08/24/2026
Steel Wood
FiledStatusContractorScope
08/24/2026Signed-offORBIT SPRINKLER CORPSteel, Wood
▾Field Inspections (DOB CAP) — 6
DateTypeResultReport
06/11/2026Pass-Final CND-Occupancy InspectionPassView ↗
03/19/2026Pass-Final SP - Up to 3 Requested FloorsPassView ↗
03/10/2026Certified Sprinkler-SP-Piping Dry/Wet-Hydrostatic TestCertifiedView ↗
06/02/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
05/09/2025Pass-Final PL - Up to 3 Requested FloorsPassView ↗
03/07/2025Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 107
DateRequirementInspectorRole
08/26/2026Structural Stability – Alterations of existing buildingsNicholas Palumbospecial
08/26/2026Energy Code Compliance InspectionsNicholas Palumboprogress
08/26/2026FinalNicholas Palumboprogress
08/26/2026HVAC-R and service water piping design and insulationNicholas Palumboenergy_progress
08/26/2026Shutoff dampersNicholas Palumboenergy_progress
08/26/2026HVAC-R and service water heating equipmentNicholas Palumboenergy_progress
08/26/2026HVAC-R and service water heating system controlsNicholas Palumboenergy_progress
08/26/2026Maintenance informationNicholas Palumboenergy_progress
08/26/2026Mechanical SystemsNicholas Palumbospecial
08/26/2026Fire-Resistant Penetrations and JointsNicholas Palumbospecial
08/21/2026HVAC-R and service water piping design and insulationNicholas Palumboenergy_progress
08/21/2026Fire-Resistant Penetrations and JointsNicholas Palumbospecial
08/21/2026Mechanical SystemsNicholas Palumbospecial
08/21/2026Structural Stability – Alterations of existing buildingsNicholas Palumbospecial
08/21/2026Energy Code Compliance InspectionsNicholas Palumboprogress
08/21/2026FinalNicholas Palumboprogress
08/21/2026Shutoff dampersNicholas Palumboenergy_progress
08/21/2026Maintenance informationNicholas Palumboenergy_progress
08/21/2026HVAC-R and service water heating equipmentNicholas Palumboenergy_progress
08/21/2026HVAC-R and service water heating system controlsNicholas Palumboenergy_progress
05/19/2026Structural Steel - High Strength BoltingCHUNG CHING JENspecial
05/19/2026Post-installed AnchorsCHUNG CHING JENspecial
05/19/2026Subgrade InspectionsCHUNG CHING JENspecial
05/19/2026Concrete - Cast-In-PlaceCHUNG CHING JENspecial
05/19/2026Footing and FoundationCHUNG CHING JENprogress
Latest 25 of 107.
▾Documents — 107 on file (BIS + DOB NOW)
▸Plans & Drawings16
▸DOB NOWPlans/Sketch16
08/21/2026B01246757-I1Request digital key ↗
08/17/2026B01038461-A2Request digital key ↗
08/17/2026B01038461-P7Request digital key ↗
Showing 3 of 16 on file for this type
▸Applications & Permits13
▸DOB NOWLPC Approval/Permit12
08/13/2026B01038461-S1Open ↗
08/13/2026B01038461-I1Open ↗
08/13/2026B01038461-P2Open ↗
Showing 3 of 12 on file for this type
▸BISPLAN / WORK APPROVAL APPLICATION1
04/21/2008310111232Open ↗
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/15/2026B01038461-I1Open ↗
▸Seals & Professional Certifications55
▸DOB NOWDPL-1: Design Professional Seal & Signature20
08/17/2026B01038461-A1Open ↗
08/17/2026B01038461-P9Open ↗
08/17/2026B01038461-S1Open ↗
Showing 3 of 20 on file for this type
▸DOB NOWProgress Inspector Seal & Signature19
09/28/2026B01038461-P9Open ↗
09/28/2026B01038461-P9Open ↗
09/23/2026B01038461-A3Open ↗
Showing 3 of 19 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature15
09/28/2026B01038461-P9Open ↗
09/23/2026B01038461-A3Open ↗
09/02/2026B01038461-P5Open ↗
Showing 3 of 15 on file for this type
▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1
04/21/2008310111232Open ↗
▸Trade Schedules & Equipment2
▸BISSCHEDULE B - PLUMBING1
04/21/2008310111232Open ↗
▸BISEQUIPMENT USE APPLICATION/PERMIT1
04/21/2008310111232Open ↗
▸Safety & Tenant Protection6
▸DOB NOWStreet Tree Checklist6
08/13/2026B01038461-I1Open ↗
08/13/2026B01038461-P2Open ↗
08/13/2026B01038461-P3Open ↗
Showing 3 of 6 on file for this type
▸Environmental & Asbestos7
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form5
08/13/2026B01038461-I1Open ↗
08/13/2026B01038461-S4Open ↗
08/13/2026B01038461-S3Open ↗
Showing 3 of 5 on file for this type
▸BISTHIS IS 'NOT AN ASBESTOS PROJECT'1
04/21/2008310111232Open ↗
▸DOB NOWDEP ACP-5: Asbestos Assessment Report1
08/13/2026B01246757-I1Open ↗
▸Approvals, Objections & Sign-offs3
▸BISSCHEDULE A - OCCUPANCY / USE1
04/21/2008310111232Open ↗
▸BISADMINISTRATIVE OBJECTIONS1
04/08/2008310111232Open ↗
▸DOB NOWUtility Company Final Acceptance Letter1
08/13/2026B01246757-I1Open ↗
▸Other Documents4
▸DOB NOWProperty Ownership Certification4
08/13/2026B01038461-P6Open ↗
08/13/2026B01038461-P3Open ↗
08/13/2026B01038461-P2Open ↗
Showing 3 of 4 on file for this type