Civic Data Works · Plans catalog · County of Tehama

County of Tehama — preapproved ADU plans

County of Tehama ( County) posts 3 preapproved accessory dwelling unit plans on its own website, verified 2026-08-03.

Agency: County of Tehama
County
Plans posted: 3
Verified: 2026-08-03

What’s posted

Tehama County's Building and Safety department page hosts three free pre-approved ADU plans — ACORN (2BR/1BA, 749 sf), FIG (1BR/1BA, 484 sf), OLIVE (3BR/2BA, 1,200 sf) — each with a working PDF link, plus an ADU Quick Guide.

Sources: https://www.tehama.gov/government/departments/building-and-safety/, https://www.tehama.gov/wp-content/uploads/2026/05/11x17-ACORN-ADU.pdf

Adversarial re-check performed with three separate fetches — all consistently returned the same ACORN/FIG/OLIVE plan set. Fetched the ACORN PDF directly and confirmed it is a genuine 1.9MB architectural CAD-derived drawing. Held up as posted.

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 County of Tehama’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).

Get started — $1,950 setup Questions? Email [email protected]

Data from Civic Data Works’ AB 1332 compliance scan. If County of Tehama’s plans have moved or you find an error, write to [email protected] and we will correct this page. Back to the full catalog.