Civic Data Works · Plans catalog · City of Corning
City of Corning — preapproved ADU plans
City of Corning ( County) posts 3 preapproved accessory dwelling unit plans on its own website, verified 2026-08-07.
- Agency
- City of Corning
- County
- Plans posted
- 3
- Verified
- 2026-08-07
What’s posted
The Planning Department's ADU Information page lists three named, free, publicly downloadable pre-approved ADU plan sets: Manzanilla (832 sq ft, 2bd), Liguria (638 sq ft, 1bd), and Kalamata (474 sq ft, 1bd), plus an ADU guide and permit application.
Sources: https://www.corning.org/adu-information/, https://storage.googleapis.com/proudcity/corningca/2026/03/af731b0f-manzanilla-distribution-copy.pdf, https://storage.googleapis.com/proudcity/corningca/2026/03/270f0bcc-liguria-distribution-copy.pdf, https://storage.googleapis.com/proudcity/corningca/2026/03/33c824cc-kalamata-plan-distribution-copy.pdf
Second independent check performed via curl HEAD on all 3 plan PDF URLs — all returned HTTP 200, content-type application/pdf, confirming real, freely downloadable files (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 Corning’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 Corning’s plans have moved or you find an error, write to [email protected] and we will correct this page. Back to the full catalog.