Irvine vs Orange
How do green building code rules compare between Irvine, CA and Orange, CA?
Irvine and Orange have similar restriction levels.
Irvine, CA
Orange County
Orange County enforces the California Green Building Standards Code (CALGreen) for all new construction and major remodels, requiring water efficiency, construction waste diversion, and indoor air quality measures verified at permit close-out.
View full Irvine rules →Orange, CA
Orange County
Orange County enforces the California Green Building Standards Code (CALGreen) for all new construction and major remodels, requiring water efficiency, construction waste diversion, and indoor air quality measures verified at permit close-out.
View full Orange rules →Key Facts Comparison
| Fact | Irvine | Orange |
|---|---|---|
| Code basis | Title 24 Part 11 | Title 24 Part 11 |
| Waste diversion | Fifty percent minimum | Fifty percent minimum |
| Water fixtures | Low-flow required | Low-flow required |
| Verification | HERS rater | HERS rater |
Highlighted rows indicate differences between cities.
Irvine FAQ
Does CALGreen apply to small remodels?
Yes, additions and remodels are covered, with mandatory measures scaled to the scope. Re-roof, water heater, and HVAC replacements have specific Title 24 energy requirements.
Where do I dispose of construction debris to count toward diversion?
Use OC-permitted Construction and Demolition recycling facilities. Contractors must keep weight tickets and submit a final diversion report to the building department.
Orange FAQ
Does CALGreen apply to small remodels?
Yes, additions and remodels are covered, with mandatory measures scaled to the scope. Re-roof, water heater, and HVAC replacements have specific Title 24 energy requirements.
Where do I dispose of construction debris to count toward diversion?
Use OC-permitted Construction and Demolition recycling facilities. Contractors must keep weight tickets and submit a final diversion report to the building department.
Compare other topics
See how Irvine and Orange compare on other ordinance categories.
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