T24Studio
Service area · South San Diego County

Title 24 reports for Chula Vista permits.

Chula Vista publishes finished Title 24 documents for its City Standard ADU plans, then says in the same paragraph that an energy consultant has to update them for your lot.

Local plan check

Forty-four posted energy forms, none of them yours

Chula Vista publishes finished energy documents for its ADU plans, which almost no city does. Development Services posts 44 energy-compliance PDFs across the 12 City Standard plans, split by climate zone, slab-on-grade versus raised foundation, and bedroom count. Then, in the next sentence: “these calculations will need to be updated by an Energy Consultant specific to the location of your project prior to submittal.” The program terms repeat it — every City Standard plan still needs site-specific energy design. The posted files date to late 2024, and the fact sheet the page links is the 2022 one, while the municipal code now adopts the 2025 Energy Code.

The dual-zone split is why. Most of the city — 91910, 91911, 91913, 91915 — is Climate Zone 7, but 91914, Eastlake and Rolling Hills Ranch, is Zone 10, so a set that complies in the west doesn’t automatically comply east. Pulling the wrong sheet off the city’s own page is a correction letter — and as of September 2026 two of those links are broken. The city does publish real numbers: 14 business days for a City Standard plan against 21 for a standard application, and about $1,000 less in plan-review fees. It also allows partial resubmittals. The only live local Energy Code amendment is an outdoor lighting-zones map.

One thing that doesn’t change by city: my price and turnaround are flat statewide — $99 first report, $150 flat after, 24–48 hours on your first job. What differs city to city is what happens on the plan-check side before and after the CF1R lands in your permit set, which is what this page covers.

Rates

Prices

Flat fees, in writing before I start. No hourly, no bid package, no change-order games — the number on the quote is the number on the invoice.

New client offer

Your first report with me

$150$9924–48 hours

One per client, homes under 3,000 square feet. Full energy model, CF1R and CHEERS registration. It’s a test run — send one job and see how it goes.

Every model after the first

$150Per model

The standard rate once you’re a client — the second building, ADU plus main house, the next project that walks in. Back in 3 business days.

Over 3,000 square feet

QUOTED

Quoted from the plans before any work starts, same day.

24×36 plan-sheet set

$20

Your CF1R laid out full size, matched to your drawing set. Comes back as a PDF you drop straight in.

Revisions

FREEFirst two

Two revisions included, plus questions any time. Past two I quote first, before I touch it.

Commercial / tenant improvement

QUOTEDSame day

Send the plans and you’ll have a flat quote back the same day. No deposit, no minimum.

Disclosure

One honest note

I’m not a licensed engineer or architect, and I don’t stamp drawings. On the CF1R I’m the documentation author — you stay the responsible designer. Nothing about your role on the job changes.

That’s on purpose. I’m not after your scope or your clients. I do one piece of the permit set — the piece that usually holds it up — and I do it fast.

Questions

Chula Vista plan-check questions

If yours isn’t here, see the full FAQ or call and ask.

Does Chula Vista accept partial resubmittals?
Yes, and the city names it as a difference from other jurisdictions — Electronic Plan Review lets applicants upload only new, deleted or revised pages instead of a full set. Sheet numbering has to hold, though: a deleted sheet is replaced with a blank page carrying its original number, or the review software can reject the submittal for being out of order.
Can I submit the energy documents Chula Vista posts with its ADU plans?
The city says no. Right after listing them, its ADU page states the calculations will need to be updated by an energy consultant specific to the location of the project prior to submittal. The posted set is split by climate zone, foundation type and bedroom count, and the city sits in two climate zones — so the documentation has to match the lot, not just the plan.
What is CHEERS registration, and is it extra?

California requires the compliance certificate to be registered with an approved data registry before the building department will accept it. I use CHEERS, and registration is included in the rate — no separate registry fee, no account you have to open.

Does my ADU or addition actually need one?

Almost certainly. New conditioned floor area — ADUs, JADUs, garage conversions, additions — triggers Title 24. So do alterations that touch the envelope, the ductwork, or the HVAC equipment, including a straight change-out. A remodel that only moves non-structural interior partitions usually doesn’t.

Send it either way. If it doesn’t need a report I’ll say so and there’s no charge for the look.

Send your Chula Vista plans.

City Standard plan or custom design, the CF1R comes back modeled for the lot’s actual climate zone and foundation type — which is exactly what the city’s own page asks for.