Gregory O'connell

Gregory O'connell is a modestly rated but responsible corporate owner. Across their buildings, tenants rate them 2.1/5 across 1 review, with 0% recommending their buildings and 0% approving of them as an owner or associate. Their portfolio records 1 eviction, 14 open violations, and 7 litigation cases. Data last updated August 25, 2026. Gregory O'Connell is a corporate owner associated with 13 buildings and 83 units across Red Hook, Cobble Hill, Columbia St Waterfront District, and Carroll Gardens in Brooklyn. The portfolio spans multiple neighborhoods across Brooklyn. The buildings were constructed from the 1870s to the 1930s, reflecting over half a century of development. The majority of the buildings are mostly low-rise. Approximately 31 percent of the associated buildings have rent-stabilized apartments. Individual building ratings, tenant reviews, and public records are on the associated building pages.