Building permits, zoning and land rules in Montgomery County, Arkansas

We could not confirm an official residential building-permit requirement for unincorporated Montgomery County¹. Verify the answer before ordering materials or starting work. Arkansas expressly recognizes that some areas have no permit or inspection requirement, yet the state building-code requirements still apply there². The applicable statewide framework is the Arkansas Fire Prevention Code, including its building and residential provisions; the current edition is the 2021 Arkansas Fire Prevention Code^9,10. Call Montgomery County government at 870-867-3521 and ask whether your unincorporated parcel needs a residential permit, inspection or certificate of occupancy¹. If the parcel is inside a municipality, ask that city separately because a city rule does not establish the rule for unincorporated Montgomery County.

No dedicated Montgomery County building, inspection, planning or zoning office could be confirmed. The official Arkansas county portal gives the county's general contact as 870-867-3521 at 105 Highway 270 East in Mount Ida¹. Start there and ask which office has jurisdiction over the parcel, then request a written answer on building permits, inspections, occupancy approval, zoning, setbacks, floodplain review and access from a county road. For a driveway entering an Arkansas state highway, the Arkansas Department of Transportation requires an access-driveway permit before work begins on state right-of-way¹¹. The county-road process could not be confirmed, so ask the county contact rather than assuming the state-highway procedure covers a local road.

We could not confirm countywide zoning for unincorporated Montgomery County, Arkansas⁵. That uncertainty also leaves general county rules on minimum dwelling size, minimum lot size, setbacks, lot coverage and building height unconfirmed. Do not read the absence of a published zoning office as permission for any use. Call Montgomery County government at 870-867-3521 with the parcel number and ask which jurisdiction controls the property¹. A property inside Mount Ida or another municipality may face municipal rules that do not apply to unincorporated land. Even where no local land-use rule applies, Arkansas building-code standards remain a separate compliance issue⁹. An owner building the owner's own residence may qualify for the state contractor-licensing exemption, but that exemption does not erase any applicable code, permit, inspection or zoning requirement⁶. The exemption covers a person building their own residence unless they build more than 1 residence in a calendar year, and work costing $2,000 or less, but it does not cover septic permits or building codes¹².

The Arkansas Department of Health handles onsite wastewater systems in Montgomery County, either directly or through an Authorized Agent³. Part I of the state application is the Permit for Construction and must be completed by a Designated Representative and approved before construction begins⁴. The Department's review fee is payable before Part I is issued, runs from $30 for a structure of 1,500 square feet or less up to $150 over 4,000 square feet, and is not refunded if you do not proceed; construction must begin within 1 year of issuance or the permit must be revalidated¹³. The system must then be inspected and approved, and the owner must receive a Permit for Operation before using it⁴. Start with the Montgomery County Local Health Unit at (870) 867-2331 and ask for the Onsite Environmental Specialist¹⁴. Soil deserves early attention: only 4.6% of county soils are rated without severe limits for a conventional septic drain field, so a site evaluation may materially affect the system design and land budget¹⁵. For a subdivided lot with its own well and septic system, the well must sit at least 50 feet from the lot line and at least 100 feet from the onsite wastewater system⁴. If an available sanitary sewer lies within 300 feet of where the sewer exits the building and connection does not cross another person's property, connection is required instead⁴.

We could not confirm whether Montgomery County allows long-term RV living, temporary camping or tiny-home occupancy on a single private parcel. Arkansas's health rules answer a narrower question: a parcel with 3 or more paid spaces intended for RVs, tiny houses on wheels or mobile homes is treated as a regulated park⁷. Those park rules do not establish permission for one RV or tiny home on private land. Under the same state framework, a tiny house on wheels is treated as a mobile home when plumbed and inspected under the Arkansas Plumbing Code and as an RV when it is not¹⁶. Before relying on either structure as a residence, ask Montgomery County government about land use and the Montgomery County Local Health Unit about wastewater^1,14.

1. Call Montgomery County government at 870-867-3521 with the parcel number and confirm jurisdiction, permits, inspections, zoning, setbacks, floodplain review and county-road access¹.

1. Arrange a septic site evaluation early because only 4.6% of county soils avoid severe limits for a conventional drain field¹⁵.

1. Contact the Montgomery County Local Health Unit at (870) 867-2331 and ask for the Onsite Environmental Specialist¹⁴. Obtain the approved Permit for Construction before installing septic, then pass inspection and receive the Permit for Operation before use⁴.

1. Design the home to the applicable Arkansas Fire Prevention Code provisions even if the county confirms that no local permit is required^2,9.

1. If the driveway enters a state highway, obtain the state access permit before working in the right-of-way¹¹.

1. If acting as your own contractor, confirm that the state owner-builder licensing exemption fits your project⁶.

Start with wastewater feasibility: only 4.6% of Montgomery County soils are rated without severe limits for a conventional septic drain field¹⁵. Terrain also matters, because 51.1% of county land is at a slope of 15% or less, while 83.7% is wooded¹⁵. Verify legal access and identify whether the entrance will meet a county road or state highway; state-highway access requires an Arkansas Department of Transportation permit¹¹. Check flood status with the county because a local floodplain process could not be confirmed. Private-well permitting is also unconfirmed; the state approval rule in the available research covers public and semi-public wells, not a general private domestic well⁸. For carrying costs, the effective property-tax rate is about 0.4%, the median annual bill is $522, and typical home insurance is about $1,730 per year¹⁵.