2025 California Energy Code · Single-family homes and ADUs · All 16 California climate zones
Title 24 reports, signed by a professional.
With your result before you order.
Upload the plans you're submitting for permit. AI builds the energy model and runs the CEC's CBECC software, so you see whether the design passes, and how to fix it if it doesn't, before you spend anything. When it passes, an energy professional checks the model against your plans and signs the CF1R your building department needs.
How it works
- 1
Upload your plans
The PDF plan set you're submitting for permit. There's nothing to measure or fill in first.
- 2
Answer what's missing
The AI reads the floor plans, elevations and schedules, then asks only what the drawings don't show, such as the water heater model.
- 3
See if it passes
We run CBECC, the California Energy Commission's compliance software, and show in minutes whether the design complies, by how much, and what to change if it doesn't. Change it and run again as often as you like, free.
- 4
Order the signed CF1R
Once it passes, an energy professional checks the model against your plans and signs the CF1R, within 2 business days for an ADU. Plan-check comments are covered by free revisions.
Why we built this
We reviewed a Title 24 report for an ADU in Los Angeles, bought from a typical $199 service. It had been signed and registered with CHEERS. The model gave the slab a perimeter of 0.1 ft instead of about 120 ft, counted one bedroom where the plans showed two, and used roof framing that didn't match the drawings.
Nobody caught it, because nothing in that workflow checks the model against the plans.
Every model is checked for errors like these before it runs:
- Slab perimeter that's impossible for the floor area
- Windows and doors that add up to more than their wall
- Average window U-factor above the Energy Code's mandatory maximum
- ADU bedroom counts that don't match the rest of the lot
- Roof and slab areas that don't match the floor area
A typical report service, next to Title 24 Studio
| Typical report service | Title 24 Studio | |
|---|---|---|
| When you know if it passes | After you've sent the plans and waited 1–3 business days | Minutes after you upload, before you pay anything |
| Changing the design | Send it back and wait again; past the included revisions, it's quoted | Change it and run again, as often as you like, free |
| If the design falls short | Advice by email, then another round | The specific changes that would make it pass, right away |
| Takeoffs | Measured by hand from the PDFs | Read from your plans by AI, then checked by a person |
| Error checks | None built into the workflow | Model checked against the plans before every run |
| Where your project is | Ask by email or phone | Status, files and the model online, with emails at each step |
| Signed CF1R | $99–$245, 1–3 business days | $129 for an ADU in 2 business days, $149 for a home in 3 |
| Plan-check comments | Usually two revisions included | 2 revisions for an ADU, 3 for a home |
Typical service figures are published prices and turnaround times for residential Title 24 reports in California.
Who signs what
We prepare the energy documentation. You keep your role on the project, and your clients stay yours.
Our reviewer is the documentation author
They check the energy model against your plans and sign the CF1R to confirm the documentation matches them.
You stay the responsible designer
You, or the architect or designer on the project, sign the CF1R as responsible designer, the same as with any energy consultant. Nothing about your role on the job changes.
We don't stamp drawings
We aren't your architect or engineer, and we don't take on the design of the building. We prepare one part of the permit set: the Title 24 energy documentation.
Questions
- What kinds of projects does it handle?
- Single-family residential under the 2025 Title 24, Part 6 code: new homes and ADUs first, with additions and alterations coming next. Multifamily and commercial projects aren't supported yet.
- Do I need to know energy modeling?
- No. You check what the AI read from your plans and answer a few questions. The app handles the model.
- Is the result official?
- The free result uses CBECC, the CEC's compliance engine, but isn't a permit document. When you order a report, an energy professional checks the model, produces the CF1R in the CEC's CBECC desktop software and signs it as documentation author. You, or your designer, sign as responsible designer. Most new construction must then register it with CHEERS, California's data registry for residential compliance documents.
- What happens to my plans?
- They're used only to prepare your project. See the privacy policy for which service providers process them and how to delete them.
Check your plans before you pay for a report
A first result usually takes 5 to 10 minutes, and the check is free.
Upload your plans