California ADU rules · Tulare County
Can I Build an ADU in Visalia?
Yes — you can build an ADU in Visalia. California's statewide ADU law requires every city, including Visalia, to approve a qualifying accessory dwelling unit by right, plus a junior ADU (JADU) on a single-family lot. What varies city to city are the local specifics below.
Can you build one?
ADUs allowed
CA state lawYes — by right
ADUs and JADUs are allowed by right in all residential and mixed-use zones; ministerial approval, no hearing.
Units on a single-family lot
Local rule1 new construction ADU (attached or detached) + 1 conversion ADU + 1 JADU; max 4 total units (primary + ADUs + JADU)
Allows both a new construction and a conversion ADU plus a JADU; total units on lot capped at 4.
Units on a multifamily lot
Local ruleUp to 25% of existing units as conversion ADUs (min 1); up to 2 detached new construction ADUs; max 4 total units per lot
Detached ADUs on multifamily lots capped at 2; total units per lot capped at 4.
Junior ADU (JADU)
CA state lawAllowed
Up to 500 sq ft, within the walls of an existing single-family home (single-family lots only).
Size & height
Max detached ADU size
Local rule1,200 sq ft
Detached ADU max is 850 sq ft (studio/1-bed), 1,200 sq ft (2+ beds); if combined with JADU, detached ADU max is 800 sq ft.
Max attached ADU size
Local rule850 (studio/1-bed), 1,200 (2+ beds), AND cannot exceed 50% of primary dwelling’s floor area
Both numeric and percentage cap apply.
Guaranteed minimum size
CA state law800 sq ft
An 800 sq ft ADU must be allowed regardless of FAR/lot-coverage caps; a city also cannot cap an attached ADU below 850 sq ft (1,000 for 2+ bedrooms).
Max JADU size
CA state law500 sq ft
Max height
CA state law16 ft
16 ft baseline; cities must allow 18 ft within ½ mi of a major transit stop or where the primary dwelling is two-story, and 20 ft on a lot with a multistory multifamily building.
Setbacks
Side setback
CA state law4 ft
A city cannot require more than 4 ft side or rear setback; conversions of existing structures are exempt.
Rear setback
CA state law4 ft
Front setback
Local ruleSame as primary dwelling, unless it would preclude an 800 sq ft ADU (then must allow at least 800 sq ft)
Front setback may be reduced to allow an 800 sq ft ADU.
Separation from main house
CA state lawNone required
No statewide separation requirement between the ADU and the primary dwelling.
Parking
Parking required
Local ruleUp to 1 space
1 off-street space per ADU; multiple local exemptions apply.
Transit parking exemption
CA state lawYes — no parking required near transit & for conversions
No parking may be required within ½ mi walking distance of transit, in a historic district, for an ADU within an existing structure, within one block of car-share, or in certain permit-parking areas.
Garage-conversion replacement parking
Local ruleNot required
No replacement parking required for garage/carport conversion.
Approval, timeline & cost
Approval path
CA state lawMinisterial (by right)
No public hearing or discretionary design review for a qualifying ADU.
Approval timeline
CA state law60 days
The agency must act within 60 days of a complete application — and the ADU is deemed approved if it does not.
Owner-occupancy
CA state lawOnly for a JADU
No owner-occupancy requirement for ADUs (the prior sunset was removed). A JADU may require owner-occupancy, principally where it shares sanitation with the main house.
Impact-fee waiver
CA state lawWaived under 750 sq ft
An ADU of 750 sq ft or less pays no impact fees (the 750 sq ft threshold itself is exempt under § 66311.5); larger ADUs pay fees proportional to the primary dwelling. JADUs (≤ 500 sq ft) are exempt.
Permits required
CA state lawBuilding permit
Only a ministerial building permit — no conditional use permit or discretionary design review for a qualifying ADU.
Visalia-specific factors that can change the answer
State law sets the floor, but these local conditions often decide whether a specific parcel works.
Historic districts or locally registered structures
Exterior alterations for ADUs must replicate primary residence features.
Fire sprinklers
Sprinklers required for ADU only if primary dwelling requires them.
Visalia allows both a new construction and a conversion ADU plus a JADU on single-family lots, but caps total units at 4 per lot. Detached ADUs are capped at 1,200 sq ft (2+ beds) or 850 sq ft (studio/1-bed), with a lower cap if combined with a JADU; multifamily lots are limited to 2 detached ADUs and a 4-unit total.
Frequently asked questions
Can I build an ADU in Visalia?
Yes. California's statewide ADU law requires Visalia to approve a qualifying accessory dwelling unit ministerial (by right), plus a junior ADU (JADU) on a single-family lot.
How big can an ADU be in Visalia?
A detached ADU of at least 1,200 sq ft must be allowed, and an ADU of 800 sq ft can never be zoned out by floor-area or lot-coverage limits. A JADU can be up to 500 sq ft.
What are the setback requirements for an ADU in Visalia?
Side and rear setbacks are limited to 4 ft. Same as primary dwelling, unless it would preclude an 800 sq ft ADU (then must allow at least 800 sq ft).
Is parking required for an ADU in Visalia?
Up to 1 space. No parking can be required within ½ mile of transit, for conversions, or for units inside the primary home. When a garage is converted, replacement parking is not required.
How long does ADU approval take in Visalia?
A complete application must be acted on within 60 days, with ministerial (by right) — no public hearing or discretionary design review for a qualifying ADU.
Do I have to live on the property to build an ADU in Visalia?
Owner-occupancy: only for a jadu. ADUs under 750 sq ft are also exempt from impact fees.
Sources
- Visalia Municipal Code, Chapter 17.14 (Accessory Dwelling Units), last amended by Ord. 2024-15 and 2025-15 (effective 2025)
- Visalia Zoning Code § 17.14.070
- Visalia Zoning Code § 17.14.090(A)
- Visalia Zoning Code § 17.14.090(D)
- Visalia Zoning Code § 17.14.090(C)
- Visalia Zoning Code § 17.14.090(C)(4)
- Visalia Zoning Code § 17.14.090(E)
- Visalia Zoning Code § 17.14.080(F)
- Cal. Gov. Code §§ 66310–66342 (ADU Law)
- HCD 2025 Accessory Dwelling Unit Handbook
- Cal. Gov. Code § 66317 (ministerial approval, 60-day deadline)
- Cal. Gov. Code § 66333 (junior ADUs)
- Cal. Gov. Code § 66321 (size minimums & height)
- Cal. Gov. Code § 66323 (by-right ADU/JADU, 800 sq ft, 4-ft setbacks)
- Cal. Gov. Code § 66322 (ADU parking; § 66334 covers JADU parking)
- Cal. Gov. Code § 66315 (owner-occupancy)
- Cal. Gov. Code § 66311.5 (impact fees: none for an ADU ≤ 750 sq ft or JADU ≤ 500 sq ft)
Last updated 2026-06-25. This is an AI-assisted summary of Visalia's ADU rules, drawn from its published ordinance and California ADU law — general information, not legal advice, and it may be incomplete or out of date. Verify the controlling rule for your specific parcel with Visalia Planning before relying on it.
Will an ADU work on your Visalia lot?
Ask GoCodebook about your address and get the size, setback, parking and permit rules that actually apply to your parcel — with the exact citation.
Check my parcel free