Search DOB and BIS records for any NYC building by address, BBL, or BIN. RegWatch aggregates violations, permits, certificates of occupancy, and building information from DOB NOW and BIS across 2.9M+ properties.
2.9M+ NYC properties · DOB NOW + BIS combined · Updated daily
The NYC Department of Buildings (DOB) maintains two public search systems: DOB NOW (a810-dobnow.nyc.gov) for current filings and permits, and BIS (a810-bisweb.nyc.gov) for historical records including older violations and certificates of occupancy. Both are free to search by address, borough-block-lot (BBL), or building identification number (BIN). For a combined search of both DOB systems plus ECB penalties and HPD violations, RegWatch aggregates all DOB data into a single lookup:
The NYC Department of Buildings maintains two major record systems:
Most NYC property professionals need data from both systems. A building may have active permits in DOB NOW and historical violations in BIS. RegWatch searches both simultaneously, so you don't need to check two separate portals. This is especially important for real estate attorneys and title companies doing due diligence.
RegWatch pulls the full range of Department of Buildings data for every property:
All data is cross-referenced: you can see which violations are linked to which permits, and whether ECB fines have escalated to liens.
Department of Buildings records are foundational to every NYC real estate transaction. Here's why each stakeholder cares:
Instead of switching between DOB NOW and BIS, RegWatch gives you everything in one search:
RegWatch also combines DOB data with HPD housing violations, DOF tax records, and ACRIS title records — so you can do complete property due diligence from one dashboard.
The DOB is the NYC agency responsible for regulating building construction, alteration, and demolition. It issues permits, conducts inspections, enforces building codes, and issues violations for non-compliance. DOB maintains records in two systems: DOB NOW (current filings) and BIS (historical records).
BIS (Building Information System) is the DOB's legacy database containing historical permits, violations, and building profiles. DOB NOW is the newer digital platform for current filings. Most buildings have records in both systems. RegWatch searches both simultaneously.
Enter any NYC address on RegWatch to see all DOB violations (Class 1, 2, and 3), plus ECB penalties and HPD violations. Results show violation date, description, status, and enforcement stage.
Yes. RegWatch supports search by address, BBL (Borough-Block-Lot), or BIN (Building Identification Number). BIN is often the most precise search method for DOB records since it identifies a specific building on a lot.
Open DOB violations can block closings, reduce property value, and create legal liability. Title companies flag outstanding violations during the closing process. Buyers should always check DOB records before making an offer.
Yes. RegWatch shows all active and historical permits including job type (New Building, Alteration, Demolition), filing status, and DOB NOW tracking. You can also see which contractors and architects are on record.
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