Brooklyn · Block 279 · Lot 8 · 11201

21 Dean Street

3 floors · 2 apartments · 4,158 sq ft · built 1910 · class B3 · owner of record: Mun, Yeung Yin Daniel

0open violations
$5,000ECB/OATH penalties owed
0HPD class C (immediately hazardous)
312dto Annual property registration

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New violations the morning after they're issued, plus deadline reminders. Free for one building.

Compliance deadlines

RequirementDueStatus
Annual property registration Check
HPD registration · September 1 each year
What this is

Residential buildings with three or more units, and one- and two-family homes the owner doesn't occupy, register with HPD every year ($13 fee). An unregistered building can't start a nonpayment case in Housing Court and faces civil penalties. Agency page

Sep 1, 2027
in 312 days
Required only if the owner doesn't live there

Open violations

ECB / OATH (1) · $5,000 owed
IssuedViolationHearingBalance
Dec 19, 2023Unknown CLASS - 2
INTERIOR RENOVATION AND ADDITION OF PENTHOUSE ACTIVE SITE & PERMIT.UPON INSPECTION WAS REQUESTED FOR CONSTRUCTION DOCUMENTS NO APPROVED DOCUMENTS , SSP , LOGS BOOKS, FENCE PERMIT, MISSING FIRE EXTINGUISHERS FO
#39524260R
Apr 4, 2025
IN VIOLATION
$5,000
DOB (0)

None open.

DOB NOW Safety (0)

None open.

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 Oct 24, 2026, 10:50 AM ET. BBL 3002790008.

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