City guide / Orange County
Title 24 planning in Santa Ana
Preparation guidance for energy compliance documentation in Santa Ana, California. Remote statewide service; local requirements come from your building department.
Hypothetical example / Santa Ana
Older home: ADU from a detached garage
Imagine converting a detached garage into an ADU. Ask how the conversion is classified and document existing construction. Detached garages may lack insulation, have minimal foundations or be close to property lines. Document the existing walls, roof and slab, and specify new assemblies. Decide on heating, cooling and water heating early. Ask how the jurisdiction classifies detached garage conversions, since that affects which requirements apply and whether existing elements can remain as-is.
Illustrative scenario only; not a statement about local projects, climate or permit rules.
Scenario checklist
- Record existing construction
- Ask about classification
- Specify new assemblies
- Choose systems
Checklist for Santa Ana
- 01Identify which agency reviews permits for your Santa Ana parcel (city, county or other).
- 02Confirm the building climate zone for the exact address using the CEC tool.
- 03Ask which Energy Code cycle applies to your application date.
- 04Ask whether local amendments or reach codes apply to your scope.
- 05Ask how energy forms should be included: on plan sheets, uploaded separately, or both.
County guide: another example
Second-story addition over an existing first floor
Read the Orange County guideQuestions
Do you have an office in Santa Ana?
No. Service is remote and statewide; this page is a planning guide.
Where do I confirm Santa Ana requirements?
With the building department that reviews your permit. Many incorporated cities run their own; confirm whether Santa Ana or Orange County reviews your parcel.
How to use the official resources
Government links below are starting points for identifying the authority for the actual property and scope. They are not evidence of an affiliation, an office or approval of this service. Confirm whether the county, an incorporated city or another agency reviews the project.
The CEC climate tool supports a location-specific lookup; this guide assigns no climate zone. The CEC Energy Code Support Center separates edition-specific forms and building categories. Confirm the applicable edition, document family and any registration or verification requirements before using a form.
CEC Energy Code Support Center: forms, FAQs and trainingNext step
Preparing a project in Santa Ana?
Published flat pricing from $149 residential and $399 commercial. Upload plans privately; no payment is taken online.