Civic Data Works · Plans catalog · City of Morro Bay

City of Morro Bay — preapproved ADU plans

City of Morro Bay ( County) posts 6 preapproved accessory dwelling unit plans on its own website, verified 2026-08-06.

Agency: City of Morro Bay
County
Plans posted: 6
Verified: 2026-08-06

What’s posted

Regional 'Central Coast' pre-designed ADU program (Morro Bay + Grover Beach + Atascadero + Arroyo Grande), free of charge, with 6 named/numbered plan sets hosted directly on morrobayca.gov: A1-Efficiency Studio (316sf), A2-Standard Studio (445sf), A3-One Bedroom (626sf), A4-One Bedroom Plus (746sf), A5-One Bedroom Plus Loft (927sf), A6-Two Bedroom Plus (998sf).

Sources: https://www.morrobayca.gov/1056/Pre-Designed-ADU-Program, https://www.morrobayca.gov/DocumentCenter/View/17500/A1-EFFICIENCY-STUDIO_CC-ADU_Morro-Bay

Adversarial re-verify: (1) second independent WebFetch of the program page reproduced identical A1-A6 links; (2) actual GET (with -L redirect follow) on the A1 document returned HTTP 200, content-type application/pdf, 13,221,020 bytes, content-disposition inline filename 'A1-EFFICIENCY STUDIO-CENTRAL COAST_Morro Bay...pdf', no login -- confirms a genuine, free, direct download.

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