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Two family frame
421 AUTUMN AVENUE
BROOKLYN · East New York-City Line · BIN 3093923
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1910Year Built
2Stories
B2Building Class
R5Zoning
2,620 sfGross Floor Area
2Units
Rent Stabilized0 Open ViolationsFDNY Report ↗
Two family frame · Owner of record: 421 AUTUMN AVENUE GROUP, LLC · 7,656 sf lot · 0.34 FAR built · Flood zone X
Locations of Work
ArchitectureGeneral
Filed — no permit issued7p · 1 filing · 6 docs
▾Owner History (Filing Record)
Companies and organizations named on filings. Individual owners are not shown.
OwnerFilingsMost Recent
GEORGE KHAN LLC103/22/2026
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
GERALD CALIENDO ARCHITECTS101/19/2026
▾Filing Representatives (Expediters)
RepresentativeFilingsMost Recent
GERALD J. CALIENDO R.A., P.C.103/21/2026
GERALD J CALIENDO R A A I A103/21/2026
Building Lifecycle
All (22)Filed (1)Violation (1)Objection (13)Special Inspection (7)
02/24/2026
Special inspection requirement — Fenestration and door U-factor and product ratings
02/24/2026
Special inspection requirement — Air barrier — testing
02/24/2026
Special inspection requirement — Fenestration air leakage
02/24/2026
Special inspection requirement — Fenestration areas
02/24/2026
Special inspection requirement — Insulation placement and R values
02/24/2026
Special inspection requirement — Permanent certificate
02/24/2026
Special inspection requirement — Air barrier - visual inspection
02/10/2026
Objection resolved — Resolved
02/10/2026
Objection resolved — Resolved
02/10/2026
Objection resolved — Resolved
02/10/2026
Objection resolved — Resolved
02/10/2026
Objection resolved — Resolved
02/10/2026
Objection resolved — Resolved
02/03/2026
Objection raised — Admin
02/03/2026
Objection raised — Zoning
02/03/2026
Objection raised — Cost
02/03/2026
Objection raised — Fire_Protection
02/03/2026
Objection raised — Scope
02/03/2026
Objection raised — Admin
02/03/2026
Objection raised — Admin
01/19/2026
Filed — ALT-CO - New Building with Existing Elements to Remain
Alteration 01, to modify lot size only
B01347826-I1
03/13/1997
Violation issued (ECB, closed)
Construction
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
BISPLISSUEDROY B PLUMBING & HEATING04/11/1996
BIS—ISSUEDDBA YORK CONSTRUCTION CO.01/26/1996
Nothing on file for this building.
▾Special Inspection Requirements (DOB NOW) — 7
DateRequirementInspectorRole
02/24/2026Fenestration and door U-factor and product ratings—energy_progress
02/24/2026Air barrier — testing —energy_progress
02/24/2026Fenestration air leakage—energy_progress
02/24/2026Fenestration areas—energy_progress
02/24/2026Insulation placement and R values—energy_progress
02/24/2026Permanent certificate—energy_progress
02/24/2026Air barrier - visual inspection—energy_progress
▾Documents — 6 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/18/2026B01347826-I1Request digital key ↗
▸Zoning, Tax Lot & Property Records2
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/18/2026B01347826-I1Open ↗
▸DOB NOWZoning Exhibit form (1-5)1
08/18/2026B01347826-I1Open ↗
▸Seals & Professional Certifications1
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/18/2026B01347826-I1Open ↗
▸Other Documents2
▸DOB NOWProperty Ownership Certification1
08/18/2026B01347826-I1Open ↗
▸DOB NOWSite Survey: Initial1
08/13/2026B01347826-I1Open ↗