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Residential Title 24 & CF1R Reports
For homeowners and design teams preparing a single-family permit package, the design report connects plans, windows, assemblies and systems to applicable Energy Code measures. CF1R is the single-family Certificate of Compliance, not an installer certificate or a test result. Low-rise multifamily uses a different 2025 documentation family; classification is confirmed before forms are selected.
Typical scope
- +Review of plans for the information needed to model or prescriptively document the project
- +Performance or prescriptive approach selection discussion
- +CF1R preparation for the applicable code cycle
- +Plan notes listing measures that must appear on drawings
- +Summary of field verification measures that the selected approach may trigger
Documentation deliverables
Typical report-preparation outputs to confirm in the project scope; not a promise of field services or permit approval.
- +Applicable design compliance documents, including CF1R where the single-family form family applies.
- +A recorded input/assumption set and coordinated measures to place on plans.
- +A handoff list distinguishing mandatory measures, installer responsibilities and any required ECC verification.
- +Final output tied to a named plan revision; undecided product substitutions are not silently treated as final.
Not included / not implied
- -Permit approval is decided by the building department; documentation does not guarantee approval.
- -Construction-stage installation certificates and ECC verification are separate responsibilities; field testing and installer certification are not included in report preparation.
- -CALGreen (Title 24, Part 11) documentation, permit processing and acceptance testing are separate scopes, not implied by a Part 6 energy report.
- -Structural, mechanical design or legal advice.
Questions
Do I need a report for my project?
It depends on the scope and the jurisdiction. New homes, additions and many alterations require energy documentation. Ask your building department or plan reviewer to confirm.
Which code cycle applies?
The 2025 California Energy Code applies to permit applications on or after January 1, 2026. Earlier active permits may remain under their earlier edition; confirm the accepted application date and any refiling or scope changes with the reviewer.
Is ECC verification included in a CF1R report?
No. ECC verification, formerly commonly called HERS testing, is separate field work where required. Preparing the design document does not perform the test or complete the installer’s CF2R.
Next step
Ready to send your plans?
Published flat pricing from $149 residential and $399 commercial. Upload plans privately; no payment is taken online.