How to Stay Compliant with NYC DOB Sign Requirements

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When it comes to construction, renovation, or demolition in New York City, staying compliant with NYC Department of Buildings (DOB) sign requirements isn’t just a recommendation — it’s the law. Failing to follow signage regulations can lead to violations, costly fines, and project delays.

Here’s everything you need to know to keep your job site compliant and penalty-free.

🔍 Why Are DOB Signs Required?

DOB signage is designed to:

  • Notify the public about ongoing construction work

  • Promote safety on and around the site

  • Display required permit and project information

  • Provide emergency contact info for 24/7 access

Whether you’re working on a new building, alteration, or demolition, the signs you post must meet specific size, color, content, and placement requirements.

🧱 Common NYC DOB Sign Types

Here are some of the most common signs required by the NYC DOB:

1. Work in Progress Sign

  • Mandatory on most active construction sites

  • Must include: rendering of the finished building (if applicable), developer info, and DOB permit number

  • Size: Typically 36.5″ x 55″ or 48″ x 72″ depending on lot size, with 1” height text minimum

2. Tenant Protection Plan Sign

  • Required when tenants remain during construction work

  • Must outline health, safety, and access measures

  • Must be posted in both English and Spanish

3. Sidewalk Shed and Fence Signs

  • Required when protective structures like sheds or fences are used

  • Must include: site address, permit info, and 311 contact

  • Specific font, colors, and layout mandated by DOB

4. Demolition Signs

  • Required on demolition sites to inform the public of the scope and timeline

  • Must include: contractor license info, safety warnings, and complaint contact number

✅ How to Ensure Compliance

  1. Use Pre-Approved Templates

    • Signs must follow strict DOB format and design rules.

    • At Kachy Signs, we offer pre-made templates that are already DOB-compliant — saving you time and ensuring accuracy.

  2. Update Signage Promptly

    • If your permit changes, contractor info is updated, or the project scope shifts, your signs must reflect those changes immediately.

  3. Inspect Placement

    • Signs must be clearly visible from the street.

    • Don’t place signs behind fencing, debris, or in shadowed corners — visibility is key.

  4. Use Durable Materials

    • NYC weather is unpredictable. Use weatherproof materials (vinyl banners, aluminum, etc.) to prevent fading, tearing, or falling signs.

🛑 Common Mistakes to Avoid

  • Using the wrong font size or color

  • Omitting permit numbers or contractor details

  • Posting signs in non-visible areas

  • Failing to display signs in both English and Spanish when required

Even small errors can trigger DOB violations.

🏗️ Need Signs Fast? We’ve Got You Covered.

At Kachy Signs, we specialize in custom and ready-made NYC DOB-compliant construction signs, including:

  • Work in Progress signs

  • Demolition notices

  • Tenant Protection Plans

  • Sidewalk shed signs

  • Custom banners & blueprints

We offer same-day printing and local delivery throughout NYC, so your project can keep moving without delays or penalties.

📞 Get in Touch

Need help figuring out which signs you need for your project?
Reach out today for a free compliance consultation or explore our full catalog here.

Let’s keep your site safe, professional, and 100% compliant.