Brooklyn · Block 1159 · Lot 53 · 11238

138 Underhill Avenue

3 floors · 2 apartments · 3,228 sq ft · built 1896 · class B9 · owner of record: Konrad Eldon Trewick

1open violations
$0ECB/OATH penalties owed
0HPD class C (immediately hazardous)
306dto 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 306 days
Required only if the owner doesn't live there

Open violations

ECB / OATH (0)

None open.

DOB (1)
IssuedViolationStatus
Sep 15, 2016CONSTRUCTION
138 UNDERHILL AVE
#0801RH
DOB VIOLATION - ACTIVE
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 30, 2026, 8:08 AM ET. BBL 3011590053.

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