Built for professionals. Trusted by experience.

3C Codes was born from the daily grind of navigating building code ambiguity, DOB filings, zoning inconsistencies, and endless interpretation.

Now, everything you’ve wished an expert could answer — is one question away. And if you’re a code or expediting firm, we work in the background so you keep the client while we keep the project moving.

Compliance

Navigate DOB regulations, occupancy classifications, and NYC-specific codes with confidence.

Construction

Code strategy aligned with field realities: egress, sprinklers, alterations, and historic overlays.

Consultation

Get AI-informed direction shaped by real-world zoning due diligence, filing logic, and decades of insight.

Ask anything. Really.

“Which section of the Energy Code outlines envelope requirements?”
“How do I calculate the required exits for a 5,000 sq ft assembly space?”
“how many dwelling units can I have on a 20 x 100 lot in an R6 zoning district?”
"I want to build a deck in my backyard, what steps should I take to obtain a DOB permit"