BIN Building Identification Number NYC Department of City Planning assigns each building a unique seven-digit BIN. Agencies such as the Department of Buildings and HPD use it to link permits, violations, and inspections to the same structure. : 3192871
BBL Borough Block Lot A ten-digit ID for a tax parcel in NYC (borough, block, and lot). The Department of Finance and City Planning use BBLs for property records, assessments, and land-use data tied to that lot. : 3071300008