Title 24 reports for Whittier permits.
Whittier publishes a real number on its preapproved ADU track — roughly five business days for plan check — and still leaves the Title 24 report on the applicant’s own document list.
The plan set is frozen. The energy report isn’t.
Whittier keeps plan check in-house, and Planning goes first: the city states that before plans go in for Building & Safety review, projects “must first be evaluated by the Community Development’s Planning Services Division.” Its preapproved ADU program is where real numbers get published — a completeness check in 1–2 business days, plan check in approximately 5 business days, resubmittals in about 5 days — across four one-story detached plans at 311, 495, 757 and 800 sf. The city is blunt that those plans “cannot be modified in anyway.” One document is still yours to bring: “Building Energy Analysis Report (Title 24 Compliance)” sits on the applicant’s Step 3 list.
That is deliberate. The site-plan checklist asks for the “Location of proposed heating / cooling equipment per energy documentation,” so the plans get read against the energy report at intake. The city also names a form for small work: a water heater replacement needs a completed CF-1R-ALT, worth knowing before you quote a change-out. Solar PV under Energy Code Section 150.1(c)14 may still be required on top of a preapproved plan (more on ADU solar). Whittier is climate zone 9 and adopted the 2025 Energy Code on January 1, 2026; no local energy reach code beyond the state code was found on the city’s pages.
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.
Nearby, same flat rate: Downey, West Covina & Covina, Fullerton and Arcadia.
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.
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.
Whittier plan-check questions
If yours isn’t here, see the full FAQ or call and ask.
How long does Whittier take to plan-check a preapproved ADU?
If the preapproved plan is fixed, why do I still need a Title 24 report?
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.
What do you need from me to start?
A PDF of the architecturals and the project address. Floor plans, elevations and a window schedule is plenty.
You don’t need the HVAC or water heater picked. If the plans don’t call them out, I model what I’d normally specify for that job — and I list every assumption in the email so nothing is buried. Swap any of it and I rerun; that doesn’t count against your free revisions.
The design doesn’t have to be finished either. Early is often better, because that’s when a compliance problem is still cheap to fix.
Send your Whittier plans.
The CF1R comes back as its own labeled document — ready to drop onto the Step 3 list the preapproved plan set leaves open.