Direct answer
The short version
Modeled
Before paying for ADU design, check whether the property has a plausible path, what the biggest blockers are, and whether the designer is solving the right problem for the lot.
San Jose scope
Where this applies
Verified
This is San Jose homeowner guidance. It is not legal advice and does not replace a designer's own professional review.
ADUOS checks
What we check first
- Whether the lot supports the path being designedModeled
- Whether the top blocker is geometry, utility, access, or evidenceModeled
- Whether cost assumptions are being treated as rangesModeled
- Whether the next step is design, review, or stopNeeds review
- Whether a contractor license should be checked before relying on a bidVerified
What could change this
The answer can move
- Designer discoveryNeeds review
- A licensed contractor's site reviewNeeds review
- CSLB license statusVerified
- Permit comments or city feedbackNeeds review
Source notes
Why the label matters
Modeled
ADUOS can help a homeowner frame the right questions before design spend. It does not certify designers or replace licensing checks.
FAQ
Common follow-ups
Should I ask for a full plan set first?
Modeled
Not before basic feasibility is clear. A small early check can prevent a larger design spend in the wrong direction.
Should I verify a contractor license?
Verified
Yes. Use the official CSLB license lookup before relying on a contractor for paid work.