Short answer: Title24Comply prepares Title 24 energy compliance reports for projects throughout Southern California — Los Angeles, Orange, San Diego, Riverside, San Bernardino and Ventura counties. You order online, upload your plans and receive a permit-ready report by email, typically in 2–3 business days. Your climate zone, set by the project address, shapes what the report needs to show.
SoCal Title 24 Reports
SoCal Title 24 work follows the same statewide Energy Code as everywhere else in California, but the region's range of climates means two similar projects can need different design choices. A detached ADU near the beach and one in an inland valley may call for different window, insulation and HVAC selections to comply.
We prepare reports for:
- ADUs, JADUs and garage conversions
- Single-family homes, new construction and additions
- Duplexes, triplexes, fourplexes and other low-rise multifamily buildings
- HVAC changeouts and window replacements
- Commercial projects, by custom quote
Every report is modeled in CEC-approved compliance software and prepared for submission to your local building department.
Southern California Climate Zones
Southern California spans several of the state's 16 energy climate zones. Broadly, the region falls into three climate bands:
- Coastal: mild temperatures year-round, moderated by the ocean, with relatively small heating and cooling loads.
- Inland valleys: warmer, drier summers, where cooling performance, window solar heat gain and duct design matter more.
- Desert: very hot summers, where cooling efficiency, envelope performance and shading carry the most weight in the energy model.
The table below shows the zone our city pages list for several major cities. Zone boundaries do not follow city limits exactly, so the exact zone is always set by your project address and ZIP code.
| City | Climate band | Zone listed on our city page |
|---|---|---|
| San Diego | Coastal | Climate Zone 7 |
| Irvine | Coastal to inland | Climate Zone 8 |
| Los Angeles | Coastal to inland | Climate Zone 9 |
| Riverside | Inland valley | Climate Zone 10 |
| Palm Springs | Desert | Climate Zone 15 |
To see how zones change the energy budget, read how climate zones affect Title 24.
Find Your Region
Our regional pages list the cities we cover in each area:
- Los Angeles County — Los Angeles, Long Beach, Pasadena, Glendale and more
- Orange County — Anaheim, Irvine, Santa Ana, Huntington Beach and more
- San Diego County — San Diego, Chula Vista, Oceanside and more
- Inland Empire — Riverside, San Bernardino, Ontario, Corona, Temecula and more
We also cover Ventura County, including Oxnard, and the Coachella Valley, including Palm Springs. If your city is not listed on a regional page, you can still order: we serve projects in every California climate zone, and the process is the same wherever the project is located.
What Southern California Projects Commonly Need
ADUs and garage conversions are among the most common projects across the region. Inland and desert projects tend to put more weight on cooling equipment, duct location and window selection, while coastal projects often have more flexibility. Hillside and canyon lots can add orientation and shading questions, so a site plan with a north arrow helps the model reflect the real conditions. Upload a complete plan set to avoid delays; see what documents to upload. Many projects also require HERS field verification after installation, and where registration is required your report is registered with CHEERS. The Title 24 requirements guide explains each building system in detail.
How Ordering Works
Title24Comply works 100% online, so it makes no difference where in Southern California your project is. Choose your report type, enter project details, upload plans as a PDF and pay securely — it takes under five minutes. Standard turnaround is 2–3 business days, with rush options available. Two revisions are included if plan check requests changes. See pricing and order.
Frequently Asked Questions
Does Southern California have different Title 24 rules?
No. Title 24 is statewide. What differs is the climate zone, which changes the energy budget and several prescriptive requirements. Some cities also adopt local ordinances, so check with your building department.
How do I know which climate zone my project is in?
The zone is set by your project address and ZIP code. We confirm it when we model your project.
Do you need to visit the site?
No. Title 24 reports are prepared from your plans. Field verification, where required, is done later by a HERS rater and the building inspector.
How much does a Southern California Title 24 report cost?
Reports start at $199 for ADUs, $245 for single-family residential and $345 per building for multifamily. See Title 24 report cost.
