San Jose Detached ADU readiness starts with a complete, source-linked city packet and early screening for utility, site, and energy-code issues.
For San Jose, package detached scope as a contractor-facing checklist before quote finalization. Treat city-specific notes as pre-bid exclusions unless verified.
Free users see the starter item. Pro unlocks the full contractor checklist.
Request a project packet for this job, or use Pro when you are checking multiple ADU quotes each month.
View sample packetEach flag explains why it matters and what to do next.
Trigger: Every permit readiness page
Why it matters: The product helps scope requirements and reduce avoidable omissions, but the city is the permitting authority.
What to do next: Use the linked official sources and confirm borderline conditions with the city before submitting.
SourceTrigger: New meters, panel upgrades, separate billing, new service, or larger detached units
Why it matters: Electrical service, meter spotting, and utility comments can delay construction even after the building packet looks clean.
What to do next: Ask the owner and electrician for panel size, meter count, service points, and separate billing intent before quote finalization.
SourceTrigger: New conditioned space or significant envelope changes
Why it matters: Energy forms and envelope details are common correction drivers in California ADU work.
What to do next: Get Title 24 documentation into the first packet instead of treating it as a later design task.
SourceTrigger: Hillside, high fire risk, close property lines, floodplain, or special site conditions
Why it matters: Site-specific conditions can add departments, special details, or construction constraints that are invisible in a generic ADU checklist.
What to do next: Check parcel conditions and map layers before using a standard permit timeline in the customer quote.
SourceTrigger: Using city or vendor pre-approved ADU plans
Why it matters: Preapprovals are often tied to the active California Building Standards Code cycle and may need reapproval after code changes.
What to do next: Confirm that the selected plan is valid for the current code cycle before promising expedited review.
SourceEvery high-impact claim should be traceable to the city or state source.