ADU Rules in Little Rock, AR (2026)
ADU rules, permit requirements, size limits, and fees for Little Rock, AR. Source-cited from official municipal code.
Whether ADUs are allowed in Little Rock, AR has not been confirmed — see the official source before proceeding.
Whether Little Rock, AR permits accessory dwelling units (ADUs) has not been confirmed from an official source. ADUs — also called granny flats, in-law units, or secondary suites — are secondary housing units on a single-family or multifamily lot. Contact the local building department at (501) 371-4832 to verify current ADU rules before proceeding, as regulations may have changed since this data was last reviewed.
ADU Size Limits
ADU Size Limits in Little Rock: Detached ADU: size varies by zoning — see official source (max height: varies — see official source). Attached ADU: size varies by zoning — see official source.
| Type | Max Size | Max Height |
|---|---|---|
| Detached ADU | See official source | See official source |
| Attached ADU | See official source | See official source |
Permit Fees
ADU Permit Fees in Little Rock: Plan check fee: Varies. Building permit fee: Varies. Impact fees: None. School fees: None or N/A. Total estimated permit cost: Varies.
| Fee Type | Amount |
|---|---|
| Plan Check | None |
| Building Permit | None |
| Impact Fees | None |
| School Fees | None |
| Total Estimate | None |
Permit Timeline
Little Rock ADU Permit Timeline: Permit timeline has not been confirmed — contact the department for current processing times. Apply through the local building department online permit portal. Phone: (501) 371-4832.
Setback Requirements
ADU Setback Requirements in Little Rock: Front setback: follows zone standard. Side setback: no minimum. Rear setback: no minimum.
Parking Requirements
Parking Requirements: Parking requirements have not been confirmed — see official source.
Restrictions & Requirements
- ADU must comply with Little Rock Building Code habitability standards
- Detached ADU located in rear yard behind principal structure
- Must maintain zone setback requirements
- Quapaw Quarter Historic District requires Little Rock Historic District Commission review
- Flood plain overlay along Arkansas River and Fourche Creek restricts construction
- Arkansas tornado country — construction must meet wind-load and storm shelter requirements
How Many ADUs Are Allowed?
Number of ADUs Allowed in Little Rock: Single-family lots: not confirmed — see official source. Multifamily properties: not confirmed — see official source.
- Single-Family Lots
- 1 ADU per lot
- Multifamily Properties
- Accessory units on multifamily parcels subject to site plan review
Statewide Preemption
ADU Preemption
We could not confirm a statewide ADU preemption statute for Arkansas.
View Arkansas preemption detailsFrequently Asked Questions
Can I build an ADU in Little Rock?
Yes. Little Rock, AR allows accessory dwelling units. On a single-family lot you can build 1 ADU per lot.
How big can an ADU be in Little Rock?
The maximum size for a detached ADU in Little Rock is 900 square feet.
How long does it take to get an ADU permit in Little Rock?
The typical ADU permit timeline in Little Rock is ADU permits typically 3-6 weeks. Value retained from pre-audit data; unconfirmed..
Do I need extra parking for an ADU in Little Rock?
Little Rock parking rules for ADUs: One parking space required per ADU. Value retained from pre-audit data; unconfirmed.
Do I have to live on-site to have an ADU in Little Rock?
Owner-occupancy requirement in Little Rock: No owner-occupancy requirement. Value retained from pre-audit data; unconfirmed.
Source: Little Rock Code of Ordinances Chapter 36 (Zoning); Little Rock Building Code. Last verified April 6, 2026. View source