ADU Laws · 2026
Santa Cruz County ADU Permit Timeline: The 60-Day ePlan Process
Unincorporated Santa Cruz County reviews ADU applications through its online ePlan system, and like every California jurisdiction, it operates under the state’s 60-day decision clock: once your application is complete, the county must approve or deny it within 60 days, with no discretionary hearing. That’s the permit timeline. Your total move-in timeline is a separate question, one that depends on how your build actually happens.
The short version: 60 days is the maximum once your application is complete. Santa Cruz County’s ePlan system handles submittal and review online. Because Framework First builds your home in the factory while your foundation and permits move forward, total delivery runs 4 to 9 months, not a permit window stacked in front of construction.
The 60-day clock
| Step | What happens |
|---|---|
| You submit a complete application via ePlan | The clock starts |
| County reviews | No public hearing, no discretionary approval required |
| Decision deadline | 60 days from a complete submittal |
| If the county misses the deadline | The application is deemed approved by operation of law in many cases |
The word “complete” carries the real weight here, as it does everywhere in California. An incomplete submittal, missing plans, an unresolved utility question, an unclear setback, doesn’t start the clock. It sits in a pre-review queue instead. Most real-world delays trace back to this step, not the 60-day rule itself.
What ePlan changes in practice
Santa Cruz County’s ePlan system means your application, plan sets, and reviewer comments all move through a single online portal rather than a paper counter. For homeowners, this mostly matters for tracking status and responding to reviewer requests quickly, since correction requests appear in the portal rather than arriving by mail. A fast response to a correction request can meaningfully shorten your real-world timeline even though it doesn’t change the 60-day rule itself.
What drives your real-world timeline
Three things matter more than the county process itself:
- How complete your first submittal is. A team that has been through Santa Cruz County plan check repeatedly knows what triggers a correction request and drafts around it.
- Septic vs. sewer. If your lot is under roughly 1.25 acres and on septic, an upgraded system is usually needed, and that review can add time separate from the ADU permit itself.
- Whether your parcel needs additional review, such as height above the standard limit inside the Urban Services Line, which requires Zoning Administrator approval rather than by-right review.
Why total delivery time beats permit-time-plus-build-time
Site-built construction typically waits for the permit before construction starts. Framework First doesn’t work that way. We build roughly 97% of your home in our factory in parallel with your foundation work and the permit process, then crane-deliver the finished unit to your property in a single day. That’s why total delivery runs 4 to 9 months across our 14 models, not a 60-day permit window added on top of a separate construction timeline.
Every Framework First price includes a permitting budget alongside plans, foundation, the factory build, delivery, hookups, appliances, and final inspection, running $180,000 to $557,000. Permit costs themselves are set by your city or county, so we confirm your exact figure during the feasibility study, and property-specific site work like a septic upgrade sits outside that listed range. We’re family-owned, based since January 2021 (CSLB #1047146, MFG #1595931).
See the full 7-step process, or start with your city: Santa Cruz or Watsonville.
Frequently asked questions
Does the 60-day clock include construction time?
No. It covers only the county’s review-and-decide window for your permit application. Construction and factory build time run on a separate track, which for Framework First totals 4 to 9 months depending on model size.
What happens if Santa Cruz County misses the 60-day deadline?
In many cases, state law treats a missed deadline as a deemed approval. This rarely becomes relevant when a genuinely complete application is submitted, which is why getting the first submittal right matters more than the deadline rule itself.
Does ePlan make the process faster?
It streamlines submittal and correction tracking, but it doesn’t change the 60-day rule. A complete, well-prepared first submittal is still the biggest lever on your real-world timeline.
Does a taller ADU take longer to permit?
Potentially. Standard height (16 ft inside the Urban Services Line) is reviewed by right. A taller ADU, up to 21 ft with Zoning Administrator approval, adds a review step. We confirm what applies to your parcel during the feasibility study.
Want a real timeline for your specific Santa Cruz County parcel? Start a feasibility study and we’ll map out exactly what applies to your address.