City of Los Alamitos pre-approved ADU plans
The pre-approved ADU plans City of Los Alamitos publishes, copied as published, with a link to the official page and the date A-du last checked it.
Pre-approved ADU plans
City of Los Alamitos
2 plans in the index·2 on A-du Build
A-du last checked the official page on November 2, 2026.
The plans
Price on claim
Build $307k to $526k
Price on claim
Build $197k to $338k
A-du is not affiliated with HCD or any city or county. This page copies what each agency publishes about its pre-approved ADU plans and links to the official page. Check the agency's page before you rely on anything here. Nothing on this page is legal advice.
Each plan as the agency publishes it
The details below are copied from the agency’s own pages, field by field, with the date A-du last checked each plan.
Pre-Approved ADU Design Option B
- Size:
- 876 square foot one-story all electric accessory dwelling unit with 132 square foot patio cover. A separate permit must be filed for the solar photovoltaic system.
- Bedrooms:
- 2
- Bathrooms:
- 2
- Designer:
- Long Beach Designers
- Status:
- No status label on the agency page
The agency page says: “All drawings are the property of the architect; applicants and property owners wishing to utilize a pre-approved ADU plan should contact the architect directly to obtain the plan before filing their pre-approved ADU application.”
Agency page for this planSee it on A-du Build
Listed on the agency page when A-du checked it on November 2, 2026.
Pre-Approved ADU Plans Design Option A
- Size:
- 563 square foot one-story all electric accessory dwelling unit. A separate permit must be filed for the solar photovoltaic system.
- Bedrooms:
- 1
- Bathrooms:
- 1
- Designer:
- Long Beach Designers
- Status:
- No status label on the agency page
The agency page says: “All drawings are the property of the architect; applicants and property owners wishing to utilize a pre-approved ADU plan should contact the architect directly to obtain the plan before filing their pre-approved ADU application.”
Agency page for this planSee it on A-du Build
Listed on the agency page when A-du checked it on November 2, 2026.
Getting a plan permitted
A pre-approved plan still needs a building permit for your lot. For free plans published by a California city or county, you can request an optional flat-fee service, Permitting by Chris Koss, AIA. Chris Koss, AIA, a California-licensed architect who owns A-du, provides this permitting service personally under a separate written agreement with you (the Permitting Services Agreement). It is not performed by A-du, and A-du takes no part of his fee. You can always take a free plan straight to your building department instead. Open any plan on A-du Build to see what applies to it.
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