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BROOKLYN
434 AVENUE U
BROOKLYN · BIN 3192871
💬 Discuss this project
—Year Built
—Stories
—Building Class
—Zoning
—Gross Floor Area
—Units
24 Open Violations ▸FDNY Report ↗
Flood zone X500
Locations of Work
MechanicalFire ProtectionEquipment
Roof2p · 1 filing · 20 docs
Floor 24p · 1 filing · 20 docs
Floor 14p · 1 filing · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
08/01/2018$1.6M—434 AVENUE U INC. → 434 AVE U PARTNERS LLC— not available
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
H & O ENGINEERING, DPC308/23/2024
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
HEXAGON INDUSTRIES INCGeneral Contractor407/08/2026
PROMPT BUILDERS NY INCGeneral Contractor307/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
H & O ENGINEERING, DPC5595208/23/2024
Building Lifecycle
All (33)Filed (3)Permit Issued (2)Signed Off (1)Violation (27)
11/15/2024
Signed off — Full Demolition
Full demolition to a two story building
B00930453-I1
09/09/2024
Permit issued — Full Demolition
B00930453-I1-FD
08/23/2024
Filed — Full Demolition
Full demolition to a two story building
B00930453-P1
08/19/2024
Permit issued — Protection and Mechanical Methods
B00930453-S1-PMM
05/23/2024
Filed — Full Demolition
Full demolition to a two story building
B00930453-S1
03/07/2024
Filed — Full Demolition
Full demolition to a two story building
B00930453-I1
04/28/2019
Violation issued (HPD, open)
B
04/05/2019
Violation issued (HPD, open)
I
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
A
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
C
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
A
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
A
04/03/2019
Violation issued (HPD, open)
B
04/03/2019
Violation issued (HPD, open)
A
02/25/2005
Violation issued (HPD, open)
B
02/25/2005
Violation issued (HPD, open)
B
02/25/2005
Violation issued (HPD, open)
C
08/29/1995
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
06/01/1994
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
08/16/1993
Violation issued (DOB, open)
V-DOB VIOLATION - ACTIVE
06/01/1993
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWFull DemolitionSigned-offHEXAGON INDUSTRIES INC09/09/2024
DOB NOWProtection and Mechanical MethodsSigned-offHEXAGON INDUSTRIES INC08/19/2024
BISFPISSUEDLUND FIRE PRODUCTS CO INC07/14/2000
BISPLISSUEDP.A.C. HEATING INC06/23/2000
BISMHISSUEDSQUARE ONE CONSTRUCTION06/01/2000
BISOTISSUEDSQUARE ONE CONSTRUCTION05/31/2000
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 4
DateRequirementInspectorRole
09/05/2024Structural Stability – Alterations of existing BuildingsSANTIAGO HELMANspecial
09/05/2024DemolitionSANTIAGO HELMANspecial
08/22/2024DemolitionSANTIAGO HELMANspecial
08/22/2024Structural Stability – Alterations of existing BuildingsSANTIAGO HELMANspecial
▾Documents — 23 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch3
08/25/2026B00930453-S1Request digital key ↗
08/25/2026B00930453-P1Request digital key ↗
08/25/2026B00930453-I1Request digital key ↗
▸Seals & Professional Certifications7
▸DOB NOWSpecial Inspector Seal & Signature4
08/23/2026B00930453-P1Open ↗
08/23/2026B00930453-P1Open ↗
08/23/2026B00930453-I1Open ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/25/2026B00930453-I1Open ↗
08/13/2026B00930453-S1Open ↗
08/13/2026B00930453-P1Open ↗
▸Trade Schedules & Equipment4
▸DOB NOWSewer Cut-Off1
08/13/2026B00930453-I1Open ↗
▸DOB NOWElectric Cut-Off1
08/13/2026B00930453-I1Open ↗
▸DOB NOWGas Cut-Off1
08/13/2026B00930453-I1Open ↗
▸DOB NOWWater Cut-Off1
08/13/2026B00930453-I1Open ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/25/2026B00930453-I1Open ↗
08/13/2026B00930453-P1Open ↗
▸DOB NOWRodent Control1
08/13/2026B00930453-I1Open ↗
▸Other Documents6
▸DOB NOWProperty Ownership Certification2
08/25/2026B00930453-I1Open ↗
08/13/2026B00930453-P1Open ↗
▸DOB NOWStructure Photographs2
08/25/2026B00930453-I1Open ↗
08/13/2026B00930453-P1Open ↗
▸DOB NOWFull Demo: 10-Day Notice1
08/13/2026B00930453-I1Open ↗
▸DOB NOWCommunity Board Notification1
08/13/2026B00930453-I1Open ↗