| Code Type | Code Model | Amendment Contact |
| Building/Dwelling Code | California Building Code 2007 (IBC 2006) | |
| Structural Code | California Building Code 2007 (IBC 2006) | |
| Plumbing Code | California Building Standards Code | |
| Mechanical Code | California Building Standards Code | |
| Electrical Code | California Electrical Code 2007 (NEC 2005) | |
| Accessibility Code | California Building Code 2007 (Title 24, Part 2) | California Access Compliance, (916) 327-9698 |
| Energy Code | California Energy Code 2007 (Title 24, Part 6) | online for download |
| Elevator Code | California Elevator Safety Construction Code 2007 (California Code of Regulations, Title 8) | (800) 423-6587 |
| Other Codes | The City of Costa Mesa does not include any local amendments to any of the below listed codes. For additional information you may contact the Building Division at 714-754-5273 | |
| Jurisdictional Area | Contact |
| Structural | Building Safety Division Phone: (714) 754-5273 |
| Plumbing | Building Safety Division Phone: (714) 754-5273 |
| Mechanical | Building Safety Division Phone: (714) 754-5273 |
| Electrical | Building Safety Division Phone: (714) 751-5273 |
| Accessibility | Building Safety Division Phone: (714) 754-5273 |
| Fire Marshal | Fire Prevention Bureau Phone: (714) 327-7400 |
| Planning | Planning Phone: (714) 754-5245 |
| City Attorney | Kimberly Hall Barlow City Attorney Phone: (714) 754-5399 |
