Visalia, CA Accessory Structures: Garage Conversions (2026)
Garage conversion rules in Visalia, CA, sometimes called garage-to-ADU or accessory living unit conversions, govern permits, ceiling height, egress, and parking replacement.
Key Facts
- Code Section
- Visalia MC sections 17.14.060, 17.14.080(C), 17.14.100
- Setback (Conversion)
- None required for existing structure footprint
- Replacement Parking
- Not required (VMC 17.14.080(C)(4))
- Size Cap
- No size limit on conversion ADU
- Expansion Allowed
- Up to 150 sq ft for ingress/egress only
- State Law
- Cal. Gov. Code 66323(a)(1)
Summary
Visalia MC section 17.14.060(B) recognizes a stand-alone garage converted into an ADU as a Detached ADU, and 17.14.080(C)(1)(c) waives off-street parking for ADUs that are part of an existing primary residence or existing accessory structure. Section 17.14.080(C)(4) further provides that if a garage is demolished or converted in conjunction with an ADU, replacement parking is not required.
17.14.100 Standards Applicable to Converted Accessory Dwelling Units. The following standards shall apply only to converted accessory dwelling units: A. Limited Expansion. Conversions may include an expansion of not more than 150 square feet beyond the same physical dimensions as the existing structure if the expansion is for the sole purpose of accommodating ingress and egress to the converted structure. Limited expansion areas shall conform with accessory dwelling unit setback requirements. B. Exterior Access Required. The converted space or structure shall have exterior access. C. Setbacks. An accessory dwelling unit or portion of an accessory dwelling unit located within the existing space of an existing dwelling or within an existing detached accessory structure shall not require a setback from the rear, street side, or interior side property lines. D. Parking. No additional off-street parking is required for the converted accessory dwelling unit. ... E. Unit Size Requirements. The conversion of an existing accessory structure or a portion of the existing primary dwelling to an accessory dwelling unit is not subject to unit size requirements established in this Chapter. For example, if an existing 2,000 square-foot accessory structure was converted to an accessory dwelling unit, it would not be subject to the established unit size requirements.
Full Breakdown
14 (adopted January 21, 2025) implements California Gov. Code section 66323 for converted ADUs. 060(C) defines a Converted ADU as one entirely located within the existing primary dwelling or an accessory structure including attached garages, storage areas, studios, pool houses, or similar structures. 100 sets the standards: (A) Conversions may include an expansion of not more than 150 sq ft beyond the same physical dimensions as the existing structure if the expansion is for the sole purpose of accommodating ingress and egress; (B) the converted space must have exterior access; (C) an ADU within an existing dwelling or detached accessory structure shall not require a setback from the rear, street side, or interior side property lines; (D) no additional off-street parking is required; (E) the conversion is not subject to ADU unit-size requirements (so a 2,000 sq ft existing accessory structure can become a 2,000 sq ft ADU). 080(C)(4) also confirms that demolishing or converting a garage in conjunction with an ADU does not require replacement parking. 42.
Violations & Fines
Converting a garage without permits is a violation of both the California Building Code and Visalia MC Title 17. Code Enforcement can require removal of the unpermitted conversion, restoration of the garage, and assessment of permit fees plus penalties. If the converted space is used as a separate dwelling without ministerial approval as an ADU/JADU, the city may issue an abatement order. Section 17.14.080(I) confirms that Chapter 17.14 does not legalize any existing illegal ADU; an illegal converted garage must go through the same ministerial process as a new ADU to become compliant.
Frequently Asked Questions
Do I need to replace my parking if I convert my garage to an ADU?
Can I convert my detached garage to an ADU even if it sits on the property line?
Is there a size limit on a garage-conversion ADU?
What if I just want to turn my attached garage into a family room (not an ADU)?
Sources & Official References
Other rules in Visalia
California rules heatmap·Compare Visalia to another location·View the California accessory structures overview
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