How this calculator works
Ready count = items marked Ready ÷ items not marked Not required. Items marked Not ready are listed by name.
What each input means
| Input | What it is actually asking |
|---|---|
| Site plan | Shows the lot, buildings, setbacks, easements and utility routes. |
| Energy forms | In California, Title 24, Part 6 compliance documents. |
| Soils report | Required by some cities or sites. See soils report. |
| Fire | Access or sprinkler questions. See fire sprinkler requirement. |
Worked examples
Including one where the naive answer misleads, which is the example most calculators leave out.
A set missing energy forms
Mark energy forms Not ready. The tool lists them, and reminds you the 60-day clock will not start until the set is complete.
A conversion with no new foundation
Mark soils report Not required if your city agrees. The ready count excludes it.
What changes the result
Each missing item can add a correction round. See plan check delays.
Local considerations
Download your city’s own ADU submittal checklist and check it against this list; it may ask for more.
When not to use this
Do not treat a full score as a complete application. Only the city decides completeness, and since January 1, 2026, California requires it to answer in writing within 15 business days.
Questions this calculator answers
- What documents do I need for an ADU permit?
- Usually the nine above, plus anything your city lists.
- How long does the city have to say my set is complete?
- In California, 15 business days for a written determination (Gov. Code § 66317).
- Do pre-approved plans skip documents?
- They cover the building design; the site documents are still needed.
- Who prepares these documents?
- Your designer, engineer, energy consultant and surveyor.
Sources and methodology
Figures dated 27 October 2026. Last reviewed .
- Gov. Code § 66317 — completeness, ministerial review and the 60-day decision (California Legislature, retrieved 2026-09-05)
Related
- ADU permits The process and timelines.
- ADU permit denied If the set comes back.
- Timeline planner Five phases you type.