City of Costa Mesa (CA)
Codes
- NEC Code Version
- 2023
- Fire Code Version
- 2018 Building Code
- Code List
2025 CALIFORNIA BUILDING CODE
2025 CALIFORNIA ELECTRICAL CODE
2025 CALIFORNIA FIRE CODE
2025 CALIFORNIA PLUMBING CODE
2025 CALIFORNIA MECHANICAL CODE
2025 CALIFORNIA ENERGY CODE
2025 CALIFORNIA RESIDENTIAL CODE
2025 CALIFORNIA ADMINISTRATIVE CODE
- IEBC Accepted
- 1
- ASCE Code Specification
- ASCE 7-16
SolarAPP+ & submittal
- SolarAPP+ Status
- Adopted
- Any SolarAPP+ Restrictions
- 1
- SolarAPP+ Restrictions
- Existing Systems,Trenching,MPU
- How Many Plansets Required
- 2
- Revision Required
- 1
- Rough Inspection
- None
- New Planset Required For Module Swap
- 0
Stamps
- Ee Stamp Required On SLD
- No
- Wet Stamps Required
- None
- Structural Calculations Required
- Yes - Attachment Spacing > 4ft
- Stamp Location On Plans
- Unspecified
- Date On Stamps
- Expiration Date
Fire setbacks
- Fire Setback Enforced
- 1
- Setback Notes
Standard
Structural & loads
- Wind Speed
- 110
- Wind Notes
Exposure Category C
- Snow Load
- 0
- Reducible Snow Load Allowed
- 1
- Max Attachment Spacing
- 48
- Structural Notes
- City of Costa Mesa requires the structural observation form to be filled out on their proprietary document. See __City of Costa Mesa - Structural Observation Report__ Form in the files section
- Minimum Ground On Roof
- #10
Electrical
- Electrical Load Calcs Required
- Derates
- Allowed POI
- Load Side Taps,PV Breaker,Meter Adapter,Line Side Taps
- Panel Schedule Required
- Partial Home Backup
- Temperature Rating
- 90
- De Rating Ampacity
- 1
- BOS Restrictions
Standard
Battery / ESS
- Unique Battery Placards Needed
- 0
- ESS Notes
- Provide elevation view and show all equipment and window/door openings with distance to ESS
- Batteries need 3' minimum clearance from any vents, windows, doors or other batteries
- If Battery is more than 6ft away, disconnect is required at the ESS.
Battery in garage:
- Provide barrier protection from vehicle if ESS located in direction path of vehicle.
- Provide a floor plan with the interior clear dimensions of the garage, indicating that the proposed equipment is located outside of the required 20’ x 20’ clear space
- Interconnected heat detectors required for all batteries installed inside garage/enclosed space
- Separate ESS Disconnect Required
- ESS Disconnect
- ESS Elevation Detail Required
- Yes - with dimensions
Plan set
- Cover Page
Fill out and uploaded City Standard Plan to CE-Solar Express Forms in LS.
- Site
BOS equipment must be screened from public right of wall by a fence or wall. Indicate height of the fence to demonstrate that it will be tall enough to screen the equipment from view.
- Roof Plan
Standoff shall not be allowed to be installed over eave areas without a structural analysis prepared by a California Engineer or Architect.
- Attachment Detail
Use 4' attachment spacing to avoid engineering requirements
- Electrical Diagram
Standard
- Custom Placards Required
- 1
- Placards Notes
Required for all jobs:
1. Structural observation letter from the architect or engineer will be required at final inspection.
2. Need large placard that reads:
- "PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN" with type 3/8" high on main panel
- SPECIAL BATTERY PLACARD - "ESS EMERGENCY SHUTOFF" Placard needed on batteries in this AHJ
- SPECIAL COMPANY INFO PLACARD REQUIRED AT MSP
- Non Standard Revision Requirements
AHJ is extremely particular about all changes on the plans being red clouded. Anything on any page that even slightly changes must be clouded. Additionally, update the "revisions" section of the title block on the cover sheet to include the date of the latest revision.
Ground mount
- Ground Mount Fencing Required
- Mesh/Scrim