Brooklyn · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · Public building report

603 Union Street, Brooklyn

603 Union Street is a 0-unit building in Carroll Gardens-Cobble Hill-Gowanus-Red Hook. NYC public records show 2 DOB complaints and 26 DOB violations associated with the building. The most recent DOB complaint was filed October 8, 2026.

This building has 3 alternative addresses. ? NYC often lists more than one street address for the same building. Corner lots, multiple street frontages, and official aliases in city address files all map to one BIN.

• 605 Union Street
• 607 Union Street
• 609 Union Street

This building ranks in the top 40% for DOB complaints and top 5% for DOB violations.

Public records

• DOB complaints 2
• DOB violations 26
• HPD violations 0
• Bedbug reports 0
• 311 requests 0
• Residential units 0