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Five to six families
306 NASSAU AVENUE
BROOKLYN · Greenpoint · BIN 3067417
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1957Year Built
3Stories
C2Building Class
R6BZoning
5,425 sfGross Floor Area
6Units
Rent Stabilized34 Open Violations ▸FDNY Report ↗
Five to six families · Owner of record: NASSAU AVE 306 LLC · 2,583 sf lot · 2.1 FAR built · Flood zone X
Locations of Work
ArchitectureElectricalEquipmentGeneral
Floor 15p · 1 filing · 3 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
KAJ NY CONSTRUCTION407/08/2026
NASSAU AVE 306 LLC203/22/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
SYED ENGINEERING, P.C.109/17/2019
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
ADVANCED BUILDERS SERVICES103/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
LELIS, ARILSONElectrical103/21/2026
NEU, RICHARDElectrical103/21/2026
RICHARD NEUElectrical103/21/2026
SEGA ELECTRIC LLCElectrical103/22/2026
SERGIO GIANNACHIElectrical103/21/2026
KAJ NY CONSTRUCTION INCGeneral Contractor107/08/2026
Building Lifecycle
All (50)Filed (1)Permit Issued (1)Violation (48)
11/20/2025
Violation issued (HPD, closed)
I
10/09/2023
Violation issued (HPD, open)
C
10/09/2023
Violation issued (HPD, open)
A
10/09/2023
Violation issued (HPD, open)
A
10/09/2023
Violation issued (HPD, open)
B
10/09/2023
Violation issued (HPD, open)
B
10/09/2023
Violation issued (HPD, open)
B
10/09/2023
Violation issued (HPD, open)
B
10/09/2023
Violation issued (HPD, open)
A
10/09/2023
Violation issued (HPD, open)
A
10/09/2023
Violation issued (HPD, open)
B
10/09/2023
Violation issued (HPD, closed)
C
10/09/2023
Violation issued (HPD, open)
C
03/24/2023
Violation issued (HPD, closed)
A
11/10/2022
Violation issued (HPD, closed)
I
03/01/2022
Violation issued (HPD, closed)
I
03/01/2022
Violation issued (HPD, closed)
A
04/12/2021
Violation issued (HPD, closed)
A
10/31/2019
Violation issued (HPD, closed)
I
09/17/2019
Filed — Alteration
B00227222-I1
09/17/2019
Permit issued — Sidewalk Shed
B00227222-I1-SH
10/18/2018
Violation issued (HPD, closed)
I
11/27/2017
Violation issued (HPD, closed)
I
11/14/2016
Violation issued (HPD, closed)
I
10/13/2015
Violation issued (HPD, closed)
I
02/23/2015
Violation issued (HPD, closed)
I
11/06/1996
Violation issued (HPD, closed)
A
08/16/1993
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
04/25/1986
Violation issued (HPD, open)
B
04/11/1986
Violation issued (HPD, open)
B
04/11/1986
Violation issued (HPD, open)
B
04/11/1986
Violation issued (HPD, open)
B
03/25/1986
Violation issued (HPD, open)
B
03/25/1986
Violation issued (HPD, open)
B
03/14/1986
Violation issued (HPD, open)
B
02/25/1986
Violation issued (HPD, open)
B
01/21/1986
Violation issued (HPD, open)
B
12/23/1985
Violation issued (HPD, open)
B
12/23/1985
Violation issued (HPD, open)
B
12/23/1985
Violation issued (HPD, open)
B
12/23/1985
Violation issued (HPD, open)
A
12/23/1985
Violation issued (HPD, open)
B
12/23/1985
Violation issued (HPD, open)
A
12/21/1985
Violation issued (HPD, open)
B
12/13/1985
Violation issued (HPD, open)
B
12/13/1985
Violation issued (HPD, open)
A
12/13/1985
Violation issued (HPD, open)
A
12/13/1985
Violation issued (HPD, open)
B
12/21/1984
Violation issued (HPD, open)
B
12/21/1984
Violation issued (HPD, open)
B
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSidewalk ShedPermit IssuedKAJ NY CONSTRUCTION INC09/17/2019
2 projects · most recent 10/13/2019
FiledStatusContractorScope
10/13/2019Permit IssuedSEGA ELECTRIC LLC3 meters, 1 new_meters
09/16/2019Permit IssuedRICHARD NEU—
Nothing on file for this building.
▾Documents — 3 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch - Sidewalk Shed1
09/02/2026B00227222-I1Request digital key ↗
▸Seals & Professional Certifications1
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/13/2026B00227222-I1Open ↗
▸Safety & Tenant Protection1
▸DOB NOWTenant Protection Plan1
08/13/2026B00227222-I1Open ↗