BY NYC Energy Code Team ON 17 Jul 2026 NYC Local Law 152

How to Check NYC Building Violations by Address Using DOB NOW, BIS, and Open Data

Check NYC Building Violations by Address

How to Check NYC Building Violations by Address Using DOB NOW, BIS, and Open Data

Whether you're buying a building, managing commercial property, planning renovations, or simply verifying compliance, one of the most important steps is checking whether the property has any outstanding violations.

Many building owners assume that a single online search will reveal everything they need to know. In reality, New York City stores building information across multiple systems, and each one serves a different purpose. Looking at only one database can leave out important records that may affect future projects, financing, or property transactions.

If you want to check NYC building violations by address, understanding how to use DOB NOW, BIS (Buildings Information System), and NYC Open Data together will give you the most complete picture of a property's compliance history.

Why Checking Building Violations Matters

Outstanding violations can affect much more than regulatory compliance. They may influence:

  • Property sales
  • Mortgage approvals
  • Refinancing
  • Insurance reviews
  • Construction permits
  • Building management decisions
  • Capital improvement planning

Identifying issues early allows owners to address them before they become larger problems.

No Single Database Shows Everything

One of the biggest misconceptions is believing that one city website contains every building record. New York City maintains multiple systems because different records are managed separately. The three primary resources are DOB NOW, Buildings Information System (BIS), and NYC Open Data. Each provides valuable information that complements the others.

Step-by-Step Search Methodology

To complete a comprehensive check, walk through the three main resources in sequence:

Step 1: Start With DOB NOW

DOB NOW is the Department of Buildings' modern online platform. Depending on the property, it handles recent permit activity, modern compliance filings (like newer boiler or elevator filings), and inspection records. For newer filings, this is the best place to begin.

Step 2: Review the Buildings Information System (BIS)

Although DOB NOW is newer, the Buildings Information System remains an essential research tool. BIS contains historical records, older violations, past complaints, certificates of occupancy, and decades of building profiles that do not appear elsewhere.

Step 3: Use NYC Open Data

NYC Open Data allows users to research city datasets in greater detail. It is particularly useful for finding ECB/OATH summonses, safety violations, and running broad programmatic reviews across multiple properties.

Searching DOB NOW and BIS building violation records

Search Using the Correct Property Information

When checking violations, gather as much identifying information as possible. Useful details include:

  • Property address
  • Borough
  • Block
  • Lot
  • BIN (Building Identification Number)

Accurate property information helps ensure you're reviewing the correct records.

Understand That Different Records Mean Different Things

Not every record represents the same issue. During your review, you may encounter complaints, violations, permits, applications, inspections, and summonses. Understanding the difference helps avoid confusion when evaluating a property's compliance history.

Review the Status of Each Record

Finding a violation does not automatically mean the issue is still unresolved. Review each record carefully to determine whether it is open, resolved, dismissed, corrected, or pending review. The current status often provides more useful information than the original issue date.

Important: A violation marked "Active" or "Open" means the underlying safety issue or filing error has not been cleared by the DOB, even if any associated fines have been paid in full.

Save Important Information

Whenever you review a property, create a digital file containing important details. Include items such as the property address, Block and Lot, BIN, complaint numbers, violation numbers, issue dates, current status, screenshots, and supporting documents. Maintaining organized records simplifies future reference.

NYC Open Data Building Violations Analysis

Why Buyers Should Perform Violation Searches

Purchasing commercial or residential property without reviewing violation history can create unexpected challenges. Buyers should confirm outstanding violations, open complaints, active permits, previous enforcement actions, and compliance history. Conducting due diligence before closing reduces future surprises.

Property Managers Should Perform Regular Reviews

Violation searches are not only useful during property sales. Property managers should periodically review building records to identify new issues, monitor compliance, track inspections, verify corrections, and maintain accurate documentation. Routine monitoring supports proactive building management.

Common Mistakes Owners Make

Several mistakes frequently occur during building record searches:

  • Searching only one city database.
  • Ignoring historical records.
  • Not checking violation status.
  • Failing to save documentation.
  • Using incomplete property information.
  • Assuming paid penalties automatically close every issue.

Best Practices for Building Record Searches

To make your research more effective:

  • Search both DOB NOW and BIS.
  • Review relevant Open Data records.
  • Verify the property's Block and Lot.
  • Save screenshots and documents.
  • Keep digital compliance files.
  • Review records regularly.
  • Track updates after corrections are submitted.
Building Violation Search Checklist

Before finishing your review, confirm the following:

  • Property address verified
  • Block and Lot confirmed
  • BIN identified
  • DOB NOW reviewed
  • BIS records checked
  • Open Data searched
  • Violation status reviewed
  • Supporting documents saved
  • Screenshots archived
  • Compliance file updated

Practical Takeaway

Checking NYC building violations involves more than typing an address into a search bar. Because information is distributed across multiple city systems, property owners should use DOB NOW, BIS, and NYC Open Data together to obtain the most accurate and complete picture of a building's compliance history. Taking a few extra minutes to review each source can help prevent delays during refinancing, property sales, renovations, and future permit applications.

Conclusion

If you want to check NYC building violations by address, using only one database may leave important information undiscovered. A complete review includes current records from DOB NOW, historical information from BIS, and broader datasets available through NYC Open Data.

Whether you're a property owner, investor, buyer, consultant, or building manager, performing regular violation searches helps you stay informed, reduce compliance risks, and make better property decisions. Organized documentation and routine monitoring are valuable tools for maintaining a clean building record and avoiding unnecessary surprises in the future.

Frequently Asked Questions

How can I check NYC building violations by address?

A complete search typically involves reviewing records in DOB NOW, Buildings Information System (BIS), and NYC Open Data using the property's address or identifying information.

Why should I use more than one database?

Each system stores different types of records. Using all three provides a more complete picture of a property's compliance history.

What information should I have before searching?

The property address, borough, Block, Lot, and BIN help ensure you're reviewing the correct building records.

Does finding a violation mean the issue is still open?

Not necessarily. Always review the current status to determine whether the violation has been corrected, resolved, or remains open.

Why should buyers review violation records?

Outstanding violations may affect financing, renovations, insurance, and future property management. Reviewing records is an important part of due diligence.

How often should building owners check property records?

Property owners and managers should review building records periodically, especially before renovations, refinancing, major maintenance projects, or property transactions.

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