Civic Data Works · Plans catalog · City of Lake Elsinore

City of Lake Elsinore — preapproved ADU plans

City of Lake Elsinore ( County) posts 3 preapproved accessory dwelling unit plans on its own website, verified 2026-08-07.

Agency: City of Lake Elsinore
County
Plans posted: 3
Verified: 2026-08-07

What’s posted

The 'Permit Ready ADU Program' page hosts three pre-reviewed, code-compliant ADU plan sets (495 SF new ADU, 735 SF new ADU, and a 400 SF garage-to-ADU conversion), each with directly downloadable PDF plan documents plus supporting Title 24 and structural calculation packages, with no payment gate.

Source: https://www.lake-elsinore.org/680/Permit-Ready-ADU-Program

Confirmed via two independent WebFetch calls to the same URL per verification doctrine. Second fetch explicitly quoted the DocumentCenter/View document IDs (5364, 5367, 5361) for each plan set, confirming real downloadable files with no vendor purchase gate. Page does not explicitly say 'free' but no price or paywall is shown anywhere.

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 Lake Elsinore’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 Lake Elsinore’s plans have moved or you find an error, write to [email protected] and we will correct this page. Back to the full catalog.