BROOKLYN

421 UNION AVENUE

BROOKLYN · BIN 3829372

—Year Built

—Stories

—Building Class

—Zoning

—Gross Floor Area

—Units

Locations of Work

No floor-level scope or drawing coverage on file for this building.

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
462 KEAP	2	03/21/2026

Nothing on file for this building.

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
BIS	EQ	ISSUED	CSC OF NY INC	12/31/2009
BIS	—	ISSUED	DEMO PLUS, INC	09/27/2006
BIS	EQ	ISSUED	DEMO PLUS, INC	09/27/2006
BIS	—	ISSUED	DEMO PLUS, INC	09/27/2006

1 project · most recent 09/07/2019

Filed	Status	Contractor	Scope
09/07/2019	Complete	APOLLO ELECTRIC INC.	—

Nothing on file for this building.

▾Documents — 6 on file (BIS + DOB NOW)

▸Applications & Permits3

▸BISWORK PERMIT APPLICATION2

12/23/2008310209075Open ↗

10/20/2008310209075Open ↗

▸BISPLAN / WORK APPROVAL APPLICATION1

10/15/2008310209075Open ↗

▸Environmental & Asbestos1

▸BISASBESTOS EXEMPTION CERTIFICATION LETTER1

10/15/2008310209075Open ↗

▸Approvals, Objections & Sign-offs1

▸BISADMINISTRATIVE OBJECTIONS1

10/15/2008310209075Open ↗

▸Filing & Intake Forms1

▸BISEFILING COVER SHEET1

10/15/2008310209075Open ↗