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Miscellaneous two family
304 3 AVENUE
BROOKLYN · BIN 3007681
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1899Year Built
2Stories
B9Building Class
M1-4/R6BZoning
2,160 sfGross Floor Area
2Units
0 Open ViolationsFDNY Report ↗
Miscellaneous two family · 1,867 sf lot · 1.16 FAR built · Flood zone X500
Locations of Work
Architecture
Floor 12p · 1 filing · 20 docs
Cellar1p · 1 filing · 20 docs
Nothing on file for this building.
Building Lifecycle
All (37)Filed (5)Permit Issued (4)Signed Off (3)Violation (1)Inspection (5)Objection (8)Special Inspection (11)
10/09/2025
Signed off — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-I1
10/09/2025
Signed off — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-S3
10/09/2025
Signed off — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-S1
08/25/2025
Inspection — Certified Storm Drainage-ST-Fixtures-Finish
Certified
View inspection ↗
08/22/2025
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
08/22/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Roughing
Certified
View inspection ↗
08/22/2025
Inspection — Certified Water and Sanitary-WS-Sanitary Piping-Underground
Certified
View inspection ↗
08/18/2025
Permit issued — Plumbing
B01052053-S1-PL
07/11/2025
Inspection — Certified Remove/Cap - work done in accordance with code
Certified
View inspection ↗
06/30/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
CARL HAMANN
06/27/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
CARL HAMANN
06/27/2025
Special inspection requirement — Concrete - Cast-In-Place
CARL HAMANN
06/27/2025
Special inspection requirement — Fire-Resistance Rated Construction
CARL HAMANN
06/27/2025
Special inspection requirement — Final
CARL HAMANN
06/27/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
CARL HAMANN
06/27/2025
Special inspection requirement — Fenestration air leakage
CARL HAMANN
06/27/2025
Special inspection requirement — Fenestration areas
CARL HAMANN
06/27/2025
Special inspection requirement — Air barrier - visual inspection
CARL HAMANN
06/27/2025
Special inspection requirement — Interior lighting power
CARL HAMANN
06/26/2025
Filed — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-P1
06/26/2025
Filed — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-P2
05/06/2025
Permit issued — Mechanical Systems
B01052053-S3-MS
04/17/2025
Objection resolved — Addressed
04/14/2025
Objection raised — Cost
04/01/2025
Objection resolved — Addressed
03/22/2025
Objection resolved — Addressed
03/21/2025
Objection resolved — Addressed
02/20/2025
Objection raised — Mechanical
02/20/2025
Objection raised — Plumbing
02/20/2025
Objection raised — Zoning
02/19/2025
Filed — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-S3
01/15/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
CARL HAMANN
07/30/2024
Permit issued — Plumbing
B01052053-S1-PL
07/24/2024
Permit issued — General Construction
B01052053-I1-GC
07/13/2024
Filed — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-S1
06/15/2024
Filed — Alteration
PLUMBING WORK AS PER PLANS ATTACHED HEREWITH. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01052053-I1
10/26/2016
Violation issued (ECB, closed)
Construction
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
05/31/2024$1.6M—— → —$729/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
HAMANN ENGINEERING, PLLC506/26/2025
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
BIG ORANGE EXPEDITING803/21/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
GREGG NY PLUMBING, INCPlumbing207/08/2026
RICHAIR MECHANICAL INCGeneral Contractor107/08/2026
UPSTRATE INCGeneral Contractor107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
HAMANN ENGINEERING, PLLC4949506/26/2025
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWPlumbingSigned-offGREGG NY PLUMBING, INC08/18/2025
DOB NOWMechanical SystemsSigned-offRICHAIR MECHANICAL INC05/06/2025
DOB NOWPlumbingSigned-offGREGG NY PLUMBING, INC07/30/2024
DOB NOWGeneral ConstructionSigned-offUPSTRATE INC07/24/2024
▾Field Inspections (DOB CAP) — 5
DateTypeResultReport
08/25/2025Certified Storm Drainage-ST-Fixtures-FinishCertifiedView ↗
08/22/2025Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
08/22/2025Certified Water and Sanitary-WS-Sanitary Piping-RoughingCertifiedView ↗
08/22/2025Certified Water and Sanitary-WS-Sanitary Piping-UndergroundCertifiedView ↗
07/11/2025Certified Remove/Cap - work done in accordance with codeCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 11
DateRequirementInspectorRole
06/30/2025Fire-Resistant Penetrations and JointsCARL HAMANNspecial
06/27/2025Fire-Resistant Penetrations and JointsCARL HAMANNspecial
06/27/2025Concrete - Cast-In-PlaceCARL HAMANNspecial
06/27/2025Fire-Resistance Rated ConstructionCARL HAMANNprogress
06/27/2025FinalCARL HAMANNprogress
06/27/2025Fenestration and door U-factor and product ratingsCARL HAMANNenergy_progress
06/27/2025Fenestration air leakageCARL HAMANNenergy_progress
06/27/2025Fenestration areasCARL HAMANNenergy_progress
06/27/2025Air barrier - visual inspectionCARL HAMANNenergy_progress
06/27/2025Interior lighting powerCARL HAMANNenergy_progress
01/15/2025Fire-Resistant Penetrations and JointsCARL HAMANNspecial
▾Documents — 25 on file (BIS + DOB NOW)
▸Plans & Drawings5
▸DOB NOWPlans/Sketch5
08/21/2026B01052053-S3Request digital key ↗
08/21/2026B01052053-P2Request digital key ↗
08/21/2026B01052053-S1Request digital key ↗
Showing 3 of 5 on file for this type
▸Zoning, Tax Lot & Property Records4
▸DOB NOWRestrictive Declaration/Easement 14
08/13/2026B01052053-I1Open ↗
08/13/2026B01052053-S1Open ↗
08/13/2026B01052053-P1Open ↗
Showing 3 of 4 on file for this type
▸Seals & Professional Certifications11
▸DOB NOWDPL-1: Design Professional Seal & Signature5
08/21/2026B01052053-P2Open ↗
08/21/2026B01052053-S3Open ↗
08/21/2026B01052053-I1Open ↗
Showing 3 of 5 on file for this type
▸DOB NOWProgress Inspector Seal & Signature3
08/30/2026B01052053-I1Open ↗
08/30/2026B01052053-I1Open ↗
08/30/2026B01052053-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature3
09/28/2026B01052053-S1Open ↗
09/01/2026B01052053-P1Open ↗
08/30/2026B01052053-I1Open ↗
▸Environmental & Asbestos5
▸DOB NOWDEP ACP-5: Asbestos Assessment Report5
08/21/2026B01052053-P2Open ↗
08/21/2026B01052053-S3Open ↗
08/21/2026B01052053-I1Open ↗
Showing 3 of 5 on file for this type