Civic Data Works · Plans catalog · City of Garden Grove

City of Garden Grove — preapproved ADU plans

City of Garden Grove ( County) posts 4 preapproved accessory dwelling unit plans on its own website, verified 2026-08-06.

Agency: City of Garden Grove
County
Plans posted: 4
Verified: 2026-08-06

What’s posted

'ADU Go' program (ggcity.org) with four city-owned, free, directly downloadable pre-approved ADU plan sets: ADUGO-CP-1 (447 sf studio), ADUGO-CP-2 (630 sf 1bd/1ba), ADUGO-CP-3 (750 sf 2bd/2ba), ADUGO-CP-4 (1,000 sf 3bd/2ba). PDFs are hosted directly on ggcity.org's own domain (e.g. ggcity.org/sites/default/files/adugo-cp-1-447sf.pdf) with no payment or third-party step.

Sources: https://ggcity.org/planning/pre-approved-accessory-dwelling-unit-program, https://ggcity.org/adu-go, https://ggcity.org/sites/default/files/adugo-cp-1-447sf.pdf

Adversarial re-verify performed: fetched the evidence URL twice independently (once via direct WebFetch, once via a second, independent r.jina.ai proxy fetch). Both fetches independently confirmed the same four ADUGO-CP-1 through CP-4 plan names, sizes, and direct ggcity.org PDF download links with explicit 'obtained online for free' language and no payment/third-party step. Classification confirmed 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 City of Garden Grove’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 City of Garden Grove’s plans have moved or you find an error, write to [email protected] and we will correct this page. Back to the full catalog.