Short answer: Title24Comply prepares Title 24 energy compliance reports for projects throughout Northern California, including the Bay Area, the Sacramento region, the North Bay and the Central Valley. 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.
NorCal Title 24 Reports
NorCal Title 24 projects follow the same statewide Energy Code as the rest of California, but the region's climates differ sharply over short distances. A home near San Francisco Bay and one in the Sacramento Valley may need quite different window, insulation and HVAC choices 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.
Northern California Title 24 and Climate Zones
Northern California covers several of the state's 16 energy climate zones. Broadly:
- Bay Area and coast: mild, ocean-influenced weather with cool summers near the water. Heating often matters more than cooling in the energy model.
- Inland valleys: the Sacramento region and Central Valley have hot, dry summers and cool winters, so both cooling and heating performance carry weight.
- Mountains and far north: colder winters put more emphasis on envelope insulation and heating efficiency.
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 Francisco | Bay Area / coast | Climate Zone 3 |
| Oakland | Bay Area | Climate Zone 3 |
| San Jose | South Bay | Climate Zone 4 |
| Sacramento | Inland valley | Climate Zone 12 |
| Modesto | Central Valley | Climate Zone 12 |
| Fresno | Central Valley | Climate Zone 13 |
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:
- Bay Area — Oakland, San Jose and surrounding cities
- Sacramento region — Sacramento and nearby communities
- Central Valley — Fresno, Stockton, Bakersfield and more
We also cover the North Bay, including Santa Rosa. 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 Northern California Projects Commonly Need
ADUs, garage conversions and additions are common across the Bay Area, while the Sacramento region and Central Valley also see steady new single-family construction. Valley projects tend to put more weight on cooling equipment, duct location and window selection; coastal projects often focus on envelope and heating. Older Bay Area homes with additions or remodels may need the existing building documented as well, so include existing and proposed floor plans; see what documents to upload. Many projects 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.
How Ordering Works
Title24Comply works 100% online, so your location in Northern California makes no difference to the process. 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 Northern California have different Title 24 rules?
No. Title 24 is statewide. The climate zone changes the energy budget and several prescriptive requirements, and some cities 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 Northern 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.
