Civic Data Works · Plans catalog · City of Chico
City of Chico — preapproved ADU plans
City of Chico ( County) posts 14 preapproved accessory dwelling unit plans on its own website, verified 2026-08-06.
- Agency
- City of Chico
- County
- Plans posted
- 14
- Verified
- 2026-08-06
What’s posted
City-run free ADU Catalog with 14 pre-approved plan designs (three footprints: 496/599/749 sq ft, including a 2-story 599 sq ft option), prepared by Jacksons & Sands Engineering, hosted as a single downloadable catalog PDF on chicoca.gov.
Sources: https://chicoca.gov/Departments/Community-Development/Planning-Division/ADUJADU-Information/index.html, https://chicoca.gov/documents/Departments/Community-Development/Planning-Division/ADUJADU-Information/pre-approved_adu_design_catalog.pdf
Adversarial re-verify: independent curl on the catalog PDF returned HTTP 200, content-type application/pdf, 3,122,393 bytes, no auth -- confirms free direct download, no login/paywall.
Any other agency can adopt these plans
Cal. Gov. Code § 65852.27, added by Stats. 2023, ch. 759, amended by Stats. 2024, ch. 7 (SB 477) (§ 65852.27(a)(5)) lets any California local agency admit into its own program plans “A local agency may also admit the following accessory dwelling unit plans into the program: (A) Plans that have been developed and preapproved by the local agency. (B) Plans that have been preapproved by other agencies within the state.” A city or county without a preapproval program of its own can post City of Chico’s plans as part of its own program instead of designing new ones — see the full statewide catalog for more options.
We build and maintain the program page, the plan library and the required third-party submission path for agencies that want to stand this up: $1,950 setup + $3,600/year (year one all-in $5,550).
Data from Civic Data Works’ AB 1332 compliance scan. If City of Chico’s plans have moved or you find an error, write to [email protected] and we will correct this page. Back to the full catalog.