Title 24 FAQ Center

The questions we are asked most, answered plainly and organised by topic.

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Permit-ready report by email

Getting Started

Understanding the Code

Your Report

Validity, Rules and Enforcement

How Reports Are Produced

Reusing, Selling and Permits

Spaces, Equipment and Housing Types

Title 24 Compared

About our service

Short answers about how ordering, revisions and support work at Title24.Pro.

What plans do I need to upload?

A dimensioned floor plan, elevations of every side and a window and door schedule cover most residential projects. Add roof and framing information, the heating, cooling and water heating equipment you intend to install, and a site plan with a north arrow if you have one, because orientation changes the glazing analysis. If something is not decided yet, send what exists: we model clearly stated assumptions and you confirm them before plan check. Upload PDFs, up to ten files at 49 MB each.

What is included in my report?

The compliance documentation your building department expects, delivered by email as a permit-ready PDF. For a low-rise residential project that is the CF1R Certificate of Compliance with the compliance results, the envelope and fenestration details, the HVAC and water heating information, the mandatory measures summary, and registration where the project requires it. The CF2R is completed later by the installing contractor and the CF3R by an ECC-Rater. Commercial projects use the NRCC certificates instead.

What happens if my plans change?

Plans change, and that is normal. Revisions are unlimited until your project complies. That covers window and door changes, different HVAC or water heating equipment, insulation changes, moderate changes in floor area, and every round of plan-check comments on the documentation we prepared. A fundamental redesign, such as a new footprint or a different building type, is new work, and we quote it before starting.

Can I speak with the analyst preparing my report?

Yes. Your questions go to the analyst working on your file, not a ticket queue, both before you order and after delivery. If plan check returns a comment on the energy documentation, send us the correction letter itself; the code section it cites usually shows exactly what is needed. Email support@title24.pro or use the contact form.

Do you cover every California climate zone?

Yes, all 16. The zone is set by the project location, and it changes the envelope and window requirements and, under the performance path, the energy budget itself. You do not need to look it up: give us the project address and we determine it. Where one ZIP code spans two zones, the building department decides which applies. See the 16 climate zones.

Do you prepare commercial Title 24 reports?

Yes. Nonresidential projects use the NRCC certificates rather than the CF1R, and the scope depends on whether the work touches the envelope, mechanical systems, lighting or a combination. We handle tenant improvements, offices, retail, restaurants, medical, warehouses, hospitality, schools and mixed-use buildings. Each project is quoted after we review the plans, and a quote is free. Request a commercial quote.

By form

Compliance is documented on standardised forms, and which ones apply depends on the project. See the Title 24 forms explained, and when each is required. Each form has its own page:

CF1R: the residential certificate of compliance, submitted at plan check
CF2R: the installation certificate completed by the installer
CF3R: the verification certificate completed by the ECC-Rater
NRCC: the nonresidential certificate of compliance
NRCA: the nonresidential acceptance test certificates
LMCC: the low-rise multifamily certificate of compliance

By who you are

What matters about Title 24 depends on your role in the project. See who needs a Title 24 report — homeowners, architects, contractors and builders.

Still not sure?

If your question is not here, ask. A large share of what we answer comes from people who are not yet sure whether they need a report at all — and that conversation is free.