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Three families
18 JEFFERSON AVENUE
BROOKLYN · BIN 3057378
💬 Discuss this project
1899Year Built
3Stories
C0Building Class
R6BZoning
3,640 sfGross Floor Area
3Units
2 Open Violations 1 unresolved · 1 paperwork only ▸FDNY Report ↗
Three families · 2,100 sf lot · 1.73 FAR built · Flood zone X
Locations of Work
ArchitecturePlumbing
Permit Issued — active, not yet Signed-off
Floor 3Under Construction6p · 2 filings · 16 docs
Floor 2Under Construction6p · 2 filings · 16 docs
Floor 1Under Construction4p · 1 filing · 10 docs
CellarUnder Construction6p · 2 filings · 16 docs
Sub-BasementUnder Construction3p · 1 filing · 10 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
LAND MARK EQUITIES103/21/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
MATTHEW VIEDERMAN ARCHITECT PC407/21/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
DYNAMIC BUILDING CONSULTANTS603/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
WALSH LAWRENCEElectrical103/21/2026
R.N.K. ROMEO CONST INCGeneral Contractor107/08/2026
PLUMB-IT MECHANICAL INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
JON LIBASCI3068202/18/2026
Building Lifecycle
All (12)Filed (4)Permit Issued (2)Violation (2)Special Inspection (4)
07/21/2026
Filed — Alteration
Respectfully request to remove, relocate & install plumbing fixtures as per plans. No change in use, egress, or occupancy.
B01233123-P1
05/22/2026
Permit issued — Plumbing
B01233123-I1-PL
05/08/2026
Permit issued — General Construction
B01233108-I1-GC
02/18/2026
Filed — Alteration
Respectfully request to file for minor partition work & finishes as per plans. No change in use, egress, or occupancy.
B01233108-P1
02/18/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
jon libasci
02/18/2026
Special inspection requirement — Final
matthew viederman
02/16/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
jon libasci
02/16/2026
Special inspection requirement — Final
matthew viederman
07/09/2025
Filed — Alteration
Respectfully request to file for minor partition work & finishes as per plans. No change in use, egress, or occupancy.
B01233108-I1
07/09/2025
Filed — Alteration
Respectfully request to remove, relocate & install plumbing fixtures as per plans. No change in use, egress, or occupancy.
B01233123-I1
04/12/2005
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/14/2003
Violation issued (ECB, open)
Construction
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingPermit IssuedPLUMB-IT MECHANICAL INC05/22/2026
DOB NOWGeneral ConstructionPermit IssuedR.N.K. ROMEO CONST INC05/08/2026
BISPLISSUEDCATMAN PLUMBING INC04/17/2006
BIS—ISSUEDFULLERTON GNRL CONST09/21/2005
1 project · most recent 07/21/2026
Water/Sanitary
FiledStatusContractorScope
07/21/2026Permit IssuedPLUMB-IT MECHANICAL INCWater/Sanitary
2 projects · most recent 04/13/2026
FiledStatusContractorScope
04/13/2026Permit IssuedMAVEN ELECTRIC INC4 meters, 4 new_meters
03/27/2026CancelledMAVEN ELECTRIC INC4 meters, 4 new_meters
▾Special Inspection Requirements (DOB NOW) — 4
DateRequirementInspectorRole
02/18/2026Fire-Resistant Penetrations and Jointsjon libascispecial
02/18/2026Finalmatthew viedermanprogress
02/16/2026Fire-Resistant Penetrations and Jointsjon libascispecial
02/16/2026Finalmatthew viedermanprogress
▾Documents — 16 on file (BIS + DOB NOW)
▸Plans & Drawings4
▸DOB NOWPlans/Sketch4
08/21/2026B01233123-P1Request digital key ↗
08/21/2026B01233123-I1Request digital key ↗
08/18/2026B01233108-I1Request digital key ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications8
▸DOB NOWDPL-1: Design Professional Seal & Signature4
08/21/2026B01233123-P1Open ↗
08/21/2026B01233123-I1Open ↗
08/18/2026B01233108-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWProgress Inspector Seal & Signature2
08/26/2026B01233108-I1Open ↗
08/23/2026B01233108-P1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature2
08/26/2026B01233108-I1Open ↗
08/23/2026B01233108-P1Open ↗
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
08/21/2026B01233123-P1Open ↗
08/21/2026B01233123-I1Open ↗
08/18/2026B01233108-I1Open ↗
Showing 3 of 4 on file for this type