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City of Lake Forest (IL)

Illinois Authority Having Jurisdiction Solar permitting requirements
NEC Code Version2014
SolarAPP+ StatusTargeted
Fire Setback Enforced0

Codes

NEC Code Version
2014
Code List

2021 INTERNATIONAL BUILDING CODE

2021 INTERNATIONAL FIRE CODE

2021 INTERNATIONAL RESIDENTIAL BUILDING CODE

2020 NATIONAL ELECTRICAL CODE

IEBC Accepted
1
ASCE Code Specification
ASCE 7-16

SolarAPP+ & submittal

SolarAPP+ Status
Targeted
Any SolarAPP+ Restrictions
1
SolarAPP+ Restrictions
MPU,Derate
Revision Required
0
New Planset Required For Module Swap
0

Fire setbacks

Fire Setback Enforced
0
Setback Notes

Standard

Structural & loads

Wind Speed
90
Snow Load
20
Reducible Snow Load Allowed
1
Max Attachment Spacing
96
Minimum Ground On Roof
#10

Electrical

Allowed POI
Line Side Taps,PV Breaker,Meter Adapter,Load Side Taps
Panel Schedule Required
Partial Home Backup
Temperature Rating
90
De Rating Ampacity
0.91

Battery / ESS

Unique Battery Placards Needed
0
ESS Notes

ADD NOTE TO TLD:


BATTERY UL1741 LISTED


PROVIDE SMOKE DETECTORS THROUGHOUT THE RESIDENCE PER CODE IN ALL MECHANICALROOMS, ALL FLOOR LEVELS INCLUDING THE BASEMENT(S), WITHIN COMMON AREAS TO ALLBEDROOMS, AND WITHIN ALL BEDROOMS. ALL DETECTORS SHALL BE POWERED FROM THEBUILDINGS AC POWER AND WITH BATTERY BACKUP AND INTERCONNECTED TO EACH OTHERDETECTOR.


PROVIDE A 120 VOLT HEAT DETECTOR IN THE GARAGE AND INTERCONNECTED TO THE HOUSE SMOKE DETECTORS.


PROVIDE AT LEAST ONE APPROVED CARBON MONOXIDE ALARM IN OR WITHIN 15 FEET OF EVERY ROOM USED FOR SLEEPING PURPOSES. THE ALARMS CAN BE BATTERY POWERED, PLUG-IN WITH BATTERY BACK-UP OR WIRED INTO THE AC POWER LINE WITH A SECONDARY BATTERY BACK-UP. THE ALARM CAN BE COMBINED WITH 120 VOLT SYSTEM OR MONITORED LOW VOLTAGE SMOKE DETECTING DEVICES IF THE COMBINED UNIT COMPLIES WITH SPECIFIC STANDARDS AND THE ALARM DIFFERENTIATES THE HAZARD PER ILLINOIS PUBLIC ACT 094-0741.


ADD HEAT DETECTOR ON PLANS IF BATTERY IS ON INTERIOR WALL

Separate ESS Disconnect Required
ESS Disconnect
ESS Elevation Detail Required
No

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 Lake Forest (IL) 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.