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City of Hawthorne (CA)

California Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2023
Fire Code Version2018 Building Code
SolarAPP+ StatusAdopted
Wet Stamps RequiredDigital Structural
Fire Setback Enforced1

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

ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Adopted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
Existing Systems,Trenching,Derate
How Many Plansets Required
3
Revision Required
1
Rough Inspection
None
New Planset Required For Module Swap
0

Stamps

Ee Stamp Required On SLD
No
Wet Stamps Required
Digital Structural
Structural Calculations Required
Yes
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 B

Snow Load
0
Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Minimum Ground On Roof
#10

Electrical

AC Disconnect Required
Yes
Electrical Load Calcs Required
Derates
Allowed POI
Line Side Taps,Load Side Taps,Meter Adapter,PV Breaker
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
1

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

[LACOF]

This AHJ follows County of Los Angeles (ESS Requirements) (CA).

Please follow this link to County of Los Angeles (ESS Requirements) (CA)

ESS disconnect required within 6ft of MSP on same wall and not blocked by walls/gates/etc


**MUST HAVE YELLOW LA COUNTY LABELS ON PLANSET**

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
Yes - with dimensions

Plan set

Cover Page Notes

All Jobs [A structural observation report must be provided at time of inspection // Grounding shall be bonded to two (E)or(N) ground rods or (E) ufer and main water bonding shall be continuous. // PLUMBING AND MECHANICAL VENTS THROUGH THE ROOF SHALL NOT BE COVERD BY SOLAR MODULES- NO BUILDING, PLUMBING, OR MECHANICAL VENTS TO BE COVERED OR OBSTRUCTED]

Electrical Diagram


Custom Placards Required
1

Ground mount

Ground Mount Fencing Required
Mesh/Scrim
Compiled from public records, 2026. Requirements change with code cycles and local amendments. Verify with the City of Hawthorne (CA) building department before you rely on this, and treat it as a research head start, not a ruling. Getting quotes? Run them through the quote checker first.