Buena Park, CA Accessory Structures: Garage Conversions (2026)
Garage conversion rules in Buena Park, CA, sometimes called garage-to-ADU or accessory living unit conversions, govern permits, ceiling height, egress, and parking replacement.
Key Facts
- Garage door
- Removed if street-visible
- Replacement
- Wall, window, or door: matching
- Detached garage removal
- Needs demolition permit
- Governing code
- § 19.348.010(C)(16), (B)
Summary
Converting a Buena Park garage into an ADU or JADU requires removing any garage door visible from the street and replacing it with a wall, window, or door matching the home's design, per § 19.348.010(C)(16).
When an existing garage is converted into a JADU/ADU, the existing garage door, if visible from public or private right-of-way, shall be eliminated and replaced with a wall, windows, door, or other exterior design features which are architecturally consistent with the exterior design of the structure and the main dwelling. Second story windows and glass doors shall be located to retain privacy between properties through such methods as offset or clerestory placement, use of opaque or view-obscuring glass. Manufactured homes shall be equipped with skirting to give the appearance of the manufactured home being located on grade. Synthetic materials of a similar appearance to the materials of the structure of the main dwelling and equivalent durability shall be permitted. Exterior siding shall be installed from the exterior finished grade to a point at or near the roof. However, if an approved solid wood, metal, concrete, or masonry perimeter foundation is used, the siding need not extend below the top of the foundation.
17. Separate Sale Prohibited. An accessory dwelling unit may not be sold separately from the primary residence.
18. Short-Term Rental Prohibited. The minimum rental term of the accessory dwelling unit shall be no less than 30 days.
19.
Full Breakdown
Buena Park Municipal Code § 19.348.010(C)(16) requires that when an existing garage is converted into a JADU or ADU, the existing garage door, if visible from a public or private right-of-way, must be removed and replaced with a wall, windows, door, or other exterior feature architecturally consistent with the main dwelling. Applications that replace a detached garage with an ADU also require a separate demolition permit under § 19.348.010(B), reviewed and issued alongside the ADU building permit.
Violations & Fines
Leaving a visible garage door on a converted unit fails the objective design standard and can hold up final building sign-off; demolishing a garage without the required demolition permit is a separate permit violation.
Frequently Asked Questions
Can I leave the garage door in place after converting to an ADU?
Do I need a separate permit to demolish a garage for an ADU?
Sources & Official References
Other rules in Buena Park
California rules heatmap·Compare Buena Park to another location·View the California accessory structures overview
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Garage Conversions in Nearby Cities
How other cities in Orange County handle garage conversions.