Brooklyn · Block 3833 · Lot 21 · 11207

434 Riverdale Avenue

class Z9 · owner of record: 434 Riverdale Ave Llc

3open violations
$0ECB/OATH penalties owed
0HPD class C (immediately hazardous)
—no dated deadlines found

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Compliance deadlines

We couldn't find building attributes for this lot, so no deadlines are listed.

Open violations

ECB / OATH (1)
IssuedViolationHearingBalance
Mar 15, 2010Construction CLASS - 1
FAILURE TO MAINTAIN EXTERIOR WALLS. NOTED: @ WEST SIDE A FREE STANDINGUNREINFORCED CBX WALL APPROX 80' X 16' HAS COLLAPSED TO PUBLIC STREET @ TIME OF INSPECTION. REMEDY: MAKE SAFE REPAIR/REPLACE MAINTAIN WALL
#34829164M
Aug 10, 2010
WRITTEN OFF
$0
DOB (1)
IssuedViolationStatus
Nov 5, 1990CONSTRUCTION

#05H1
VIOLATION UNSERVED ECB-ACTIVE
DOB NOW Safety (1)
IssuedViolationStatus
Sep 18, 2025Gas Piping - LL152 FTF-PL-PER
Cycle 1, Sub-cycle B (premises is in Community District 5)
Active
HPD (0)

None open.

Check the agency records

Always confirm on the city's own systems before acting: DOB BIS property profile · DOB NOW · HPD Online · Pay ECB/OATH penalties (CityPay)

City records as of Nov 14, 2026, 6:58 AM ET. BBL 3038330021.

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