PERCH · ADU LEGALITY INDEX · UPDATED 2026-07-17

ADU Laws in Arkansas — 2026 Guide

Statute summary, size caps, owner-occupancy rules, permit timelines, and a 4-question eligibility quiz. Part of the PERCH ADU Legality Index — one page per state, verified against real statute references and updated as laws change.

4-question eligibility quiz

Q1 · State
What state are you building in?
Q2 · Lot size
How big is the lot?
Q3 · Zoning
What zoning district is the lot in?
Q4 · Property type
Which best describes the build?
Result

Key rules · Arkansas

Statute summaryArkansas has no state ADU preemption. Little Rock and Fayetteville permit ADUs with conditional-use permits; most jurisdictions require variance or PUD.
ADU allowedConditional — depends on jurisdiction
Size cap (sqft)800
Owner-occupancy requiredYes
Permit timeline (days)45-120
Statute citationACA § 14-56 (Local Zoning)
Last verified2026-07-17

Frequently Asked Questions

Are ADUs legal in Arkansas?
Conditionally — ADU legality in Arkansas depends on the specific municipality. Consult your local planning department; Arkansas has no state ADU preemption. Little Rock and Fayetteville permit ADUs with conditional-use permits; most jurisdictions require variance or PUD.
What are the size limits on an ADU in Arkansas?
Arkansas permits ADUs up to approximately 800 square feet per ACA § 14-56 (Local Zoning). Individual municipalities may set lower caps; verify with your city or county planning department before ordering.
Do I need a permit for an ADU in Arkansas?
Yes — every ADU in Arkansas requires a building permit issued by the city or county. The permit process typically runs 45-120 days depending on jurisdiction, complexity, and whether discretionary review is triggered.
Can I rent out my ADU in Arkansas?
Long-term rental is generally permitted in Arkansas where the ADU itself is legal. Short-term rental (under 30 days) is subject to municipal registration and may require additional permits; check with your local planning department.
Does Arkansas require owner-occupancy on the primary residence when I have an ADU?
Yes — Arkansas statute or most municipal ordinances require the property owner to occupy the primary residence when an ADU is present.
What zoning districts allow ADUs in Arkansas?
Most Arkansas municipalities permit ADUs in single-family residential zones (R-1, R-2 equivalent). Arkansas has no state ADU preemption. Little Rock and Fayetteville permit ADUs with conditional-use permits; most jurisdictions require variance or PUD. Consult your city zoning code for the specific district table.
How long does an ADU permit take in Arkansas?
Typical ADU permit timelines in Arkansas run 45-120 days from application to approval. Fast-permitting counties can move in under 30 days; metro-core jurisdictions with discretionary review can extend to 150+ days.
Are there setback requirements for an ADU in Arkansas?
Yes — most Arkansas municipalities apply the same setback requirements to ADUs that apply to the primary structure (typically 5-10 feet rear and side, 15-25 feet front). Some cities apply reduced setbacks specifically for detached ADUs. Verify with your city zoning code.
Can I finance an ADU purchase in Arkansas?
Yes — several financing pathways cover ADU purchases in Arkansas: Fannie Mae HomeStyle Renovation, FHA 203(k), construction-to-perm loans, HELOC on the primary residence, and cash. Check with modular-friendly lenders like 21st Mortgage, Cascade Financial, and Triad Financial for the Arkansas-specific product.
What's the difference between an ADU and a JADU in Arkansas?
The JADU (Junior ADU) category originated in California and is not a distinct legal category in Arkansas. Most Arkansas municipalities regulate internal conversions and detached units under a single ADU/accessory apartment definition.

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