Open ViolationsA public record project
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Gregory Karwowski

3 registered buildings70 open records

Portfolio assembled from HPD property registrations: every building whose registered owner matches Gregory Karwowski, counted once per building. Buildings registered under other entity names are not included, and we do not merge affiliated companies. Registrations lag reality, so a building may have changed hands since its last filing.

Gregory Karwowski at a glance

Gregory Karwowski is the HPD-registered owner of 3 buildings in New York City. Those buildings carry 70 open city records, 8 of them immediately hazardous, and no unpaid OATH/ECB fines.

Buildings
3
HPD-registered to Gregory Karwowski
Open records
70
23.3 per building
Open Class C
8
Immediately hazardous
Fines due
$0
OATH/ECB balance
Open per unit
3.18
22 residential units · NYC average 0.31

Buildings registered to Gregory Karwowski

3 buildings · click any column to sort · addresses link to the full building record

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Buildings registered to Gregory Karwowski
648 Leonard StreetBrooklyn23367066$0Dec 11, 2025
149 Engert AvenueBrooklyn03104$0Dec 11, 2025
143 Russell StreetBrooklyn00000$0Dec 11, 2025

Class A, B and C are the hazard tiers the city assigns to a violation. Other covers open records that carry no hazard tier, mostly DOB complaints and OATH hearing entries. The four columns sum to Open total.

Registered officers

The individuals HPD registrations for Gregory Karwowski name as officers. Officer names are public HPD registration data; the corporation, not the individual, is what this site ranks.

  • Christopher KarowowskiHead officer
  • Gregory KarwowskiOfficer

Possibly related portfolios

Other registered owners whose HPD registrations name one of the same officers. A shared name is a lead, not proof of common ownership: different people can share a name, and we do not merge entities.