· 1,200 sq ft footprint

Small Barndominium Floor Plans in Arkansas

"Small" is a size adjective, not a dimension, and in Arkansas it changes more than one line on a plan. At roughly 1,000 to 1,400 square feet the clear span a barndominium frame buys is worth the least it will ever be worth, the onsite wastewater field is sized off bedrooms rather than floor area, and several Arkansas cities cap a detached shop as a percentage of the house you have just made small. This page is about those three things and what to do about each.

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What actually changes at this size

The dimensions are the easy part. These are the decisions that follow from them.

This is where clear span is worth least, and that is worth saying

Open floor with no interior bearing wall is what post-frame and red iron actually sell, and a narrow building needs less of it. Across 30 to 36 feet of width a conventionally framed house with an interior bearing line sits inside the residential code's prescriptive chapters, so the span premium is at its narrowest. What does not shrink is the design work: IRC R301.1.3 sends structural elements exceeding the limits of Section R301 to accepted engineering practice, and neither a rigid frame nor a pole barn on eight-foot column spacing appears in chapters written for light-frame wood, cold-formed steel, masonry, concrete, ICF and SIP construction.

The drainfield is sized off bedrooms, not off square feet

The Arkansas State Board of Health's Rules Pertaining to Onsite Wastewater Systems size an absorption area from design daily flow and a soil loading rate, and § 2.5 defines a bedroom as any room inside a residence intended for the purposes of sleeping quarters. A small three-bedroom barndominium needs the same field as a much larger three-bedroom house on the same soil. Floor area reaches only the plan-review fee — $30.00 for a structure of 1,500 square feet or less, $45.00 above that to 2,000, $150.00 above 4,000 — and § 4.9.2 strips auxiliary areas out of even that, naming garages, carports and porches.

Some districts publish a floor, and the tiny-house appendix is not in force

A small barndominium can fall under a minimum. The City of Huntsville's R-E Residential Estates district, written to protect farm and ranch lands, requires each principal structure to have at least 576 square feet of enclosed and heated living space on a permanent foundation, on a two-acre lot 200 feet wide at the building line. And the relaxations a very small dwelling would want are not automatic here: Arkansas's amendment to Volume III R102.5 leaves IRC Appendices AA through AW unadopted, so Appendix AQ, Tiny Houses, applies only where a city has adopted it by ordinance.

A smaller slab still meets the same ground

Site conditions come from the parcel, not the plan. NRCS's official series description for Sharkey — roughly 906,000 Arkansas acres, concentrated in Mississippi, Desha, Crittenden, Phillips, Chicot, Poinsett, Monroe, Lee and St. Francis counties — gives a COLE of about 0.10 to 0.17 and records cracks one to three centimetres wide opening 20 to 24 inches deep in most years. SSURGO puts a fragipan under 40.2 percent of Benton County, the highest share in the state, and that county's footing inspection policy requires footings below an 18-inch frost line and into native soil. A small footprint spans less soil variability. It changes nothing about the soil itself.

The rule that bites hardest at a small footprint

Make the house small and the detached shop shrinks with it — unless you attach it

Several Arkansas cities size a detached accessory building off the dwelling it belongs to, so a small barndominium buys a small shop. The City of Cabot Zoning Code, Article VI, Section 1(a), caps one at the smallest of 30 percent of the total rear yard, 40 percent of the heated and cooled floor area of the main structure, or 800 square feet, at 16 feet to the roof peak. Jonesboro's JMC 117-225(a) says an accessory building may not exceed the floor area of the principal use nor occupy more than ten percent of the lot, with RS-3 through RS-5 capped at 600 square feet outright. Jacksonville's JMC 18.86.020, rewritten by Ordinance 1720 on 2 March 2023, allows no more than half the principal building's floor area to a hard maximum of 850 square feet on a lot of half an acre or less. All three write the same escape into the same section: Cabot's Section 1(c) provides that structures attached by a common roof are not accessory buildings, and Jonesboro's JMC 117-225(b) requires an attached one to share a common wall with the main building and comply with the requirements applicable to the principal building. Attach the shop and the percentage stops reaching it — a decision made on the drawing board, not at a counter.

How people actually split 1,200 sq ft

Common configurations we see at this footprint. Yours does not have to match one exactly — this is a starting point for the conversation, not a catalog.

All living space, no shop

1,200 sq ft living / no shop bay

What most people mean by the search term: one storey, two or three bedrooms, a metal roof and a simple rectangle. With no wide overhead door interrupting a wall line and no shop bay setting the eave, the eave height drops, the wall panel area drops with it and the conditioned volume drops again. It is also where the frame decision is genuinely open, because nothing in the plan asks for a wide clear span.

Small dwelling with the shop under one continuous roof

1,200 sq ft living / 800–1,000 sq ft shop, one roofline

The answer to the accessory-building caps. Inside Cabot and Jonesboro an attached shop answers to the district's setbacks, coverage and height rather than to a percentage of your floor area. Arkansas amended IRC R302 — fire-resistant construction, the garage section and opening protection — so the wall between the two halves is a designed assembly, not a partition.

Small house now, detached shop on its own footing

1,200 sq ft living / detached shop, permitted separately

Benton County's Building Safety Department states that effective 28 November 2023 the county no longer requires building permits for Group U structures in unincorporated areas — detached shop buildings with no living space, carports, storage buildings, decks and fences — while permits are still required for any structure attached to a residence and for new plumbing, electrical or HVAC work. Detaching can simplify a rural build and shrink the shop inside a city.

Two bedrooms instead of three, on a difficult septic site

1,200 sq ft living / 2 bedrooms

Because the state wastewater rule sizes the field from design daily flow rather than floor area, the bedroom count is the only lever a small plan really has. Where the loading rate is poor — a fragipan perching water through winter and spring, or slow-draining Vertisol clay — dropping a bedroom moves the absorption area in a way that dropping 200 square feet of hallway does not.

Ways to build this size

A footprint can go together several ways. These are the service lines most relevant to it.

Custom Barndominium Plans

Barndominium floor plans, elevations and engineered documents drawn to your parcel — and to the design numbers your Arkansas jurisdiction publishes.

Pole Barn Homes

Pole barn homes built as dwellings, not barns — post-frame columns, wide clear spans, and a straight answer on the farm-building exemption.

Barndominium Kits

Engineered barndominium shell packages for Arkansas land, drawn to a named jurisdiction's criteria rather than to a national vendor's generic spec.

Permitting and Code Compliance

Arkansas's code reaches unincorporated land; the permit counter often does not. We establish what actually applies to your parcel before design starts.

Site Preparation

Clearing, cut and fill, the compacted pad, drainage and the culvert, planned around the clay, karst and loess your Arkansas parcel actually carries.

Turnkey Barndominium Builds

Land through handover under one contract, and a straight answer on what actually gates a barndominium build on rural Arkansas land.

Small Barndominium: common questions

6 questions we get asked most often about this footprint. If yours is not on the list, ask it directly.

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Does a small barndominium actually cost less per square foot?

Part of the bill scales with floor area and part of it does not, which is why a smaller building rarely produces a proportionally smaller total. Two Arkansas cities publish fee schedules that show the split plainly. Jacksonville's JMC 16.04.060 sets the residential building permit at a $10.00 minimum covering the first $1,000 of construction valuation plus $2.00 per $1,000 above it, and presumes construction to be worth at least $35.00 per square foot of heated and cooled floor area — a fee that genuinely falls when the heated area falls. Jonesboro's Inspections fee sheet prices residential electrical, plumbing and HVAC permits at $0.05 per square foot each, but charges a flat $50.00 for a foundation and footing permit up to 40,000 square feet, and the state's wastewater plan-review fee moves in bands rather than smoothly. Off the fee sheet, the prices that hold are attached to the land rather than the building — the well, the septic field, the driveway and culvert, the service run, the soil work, the engineer's design — and all of it spreads across fewer square feet. There is no measured Arkansas cost-per-square-foot benchmark to set against that, so treat any per-foot number you are quoted as that builder's number and ask which site items it contains.

At this size, is a pole barn frame still the right choice?

This is the footprint where the honest answer is closest to a draw, and it is worth saying so rather than selling past it. A clear span with no interior bearing wall is what post-frame construction and red iron actually buy, and a building 30 to 36 feet wide needs less of it than one 60 feet wide. What still argues for post-frame at a small size is specific: no interior partition is load bearing, so the plan inside the shell can be rearranged later without touching the roof; the shell dries in quickly; and if a shop bay or a tall overhead door is anywhere in the picture, the method is built for it. What argues against it is that the engineering does not scale down. R301.1.3 sends structural elements exceeding the limits of Section R301 to accepted engineering practice, and a pole barn on eight-foot column spacing is in none of the prescriptive tables — so it is an engineered building at 1,200 square feet exactly as it is at 3,600. Decide it on the shop, the schedule and the site.

Does a small barndominium need a smaller septic system?

Usually not, and this is the most useful counterintuitive fact on the page. The Arkansas State Board of Health's Rules Pertaining to Onsite Wastewater Systems size an absorption area from design daily flow and a soil loading rate. Rule § 2.5 defines a bedroom as any room inside a residence intended for the purposes of sleeping quarters, and the bedroom count is the flow driver — two three-bedroom houses on the same soil get the same field whether one is 1,200 square feet and the other 3,000. The process is identical at any size. Rule § 4.3 requires the application and detailed plans to be approved prior to construction of a building or residence, which on rural land with no building department often makes this the only construction permit a landowner meets. It comes in three parts: a Permit for Construction prepared by a Designated Representative, an installation inspection on 24 hours' notice, and a Permit for Operation, without which the system may not be used. Two doors people ask about are closed — § 9.9.3 states holding tanks shall not be approved for residencies, full or part time, and § 9.10.3 sends all other wastewater from a structure with a composting toilet back to Sections 8 or 9 anyway.

Can a barndominium be too small for the zoning?

Yes, in two different ways that are worth keeping apart. The first is a minimum floor area attached to the dwelling itself — Huntsville's R-E district requires 576 square feet of enclosed and heated living space on a permanent foundation for each principal structure, a published figure in a named district and exactly the kind of line a very small plan can fall under. The second is minimum lot size, which governs where a small building may go rather than how small it may be: Jonesboro's Minimum Dimension Requirements table at JMC 117-138(d) sets AG at five acres with 240 feet of width and RS-1 at 43,560 square feet, while Jacksonville's Chart No. 1 at JMC 18.68.050 puts A-1 Agriculture at one acre and its residential districts at 5,000 to 8,400 square feet. Separately, Arkansas's amendment to Volume III R102.5 leaves IRC Appendices AA through AW unadopted, so Appendix AQ, Tiny Houses — which relaxes loft, stair and ceiling rules for very small dwellings — applies only where a city has adopted it.

Can I put the shop up first and finish the small house later?

It is a common plan, and it changes legal footing the moment living space appears. Benton County's Building Safety Department states that effective 28 November 2023 the county no longer requires building permits for Group U structures in unincorporated areas, listing detached shop buildings with no living space, carports, storage buildings, decks and fences — and states the exception in the same breath: permits are still required for any structure attached to a residence, for commercial use, and for new plumbing, electrical or HVAC work. Chapter IX of the county's Planning and Development Regulations exempts agricultural buildings, then defines one as a structure housing farm implements, hay, grain, poultry or livestock and adds that it shall not be a place of human habitation. A barndominium fails both tests the same way, and state law lands there too: the electrical licensing exemption at A.C.A. § 17-28-102(a)(4) reaches a nonresidential farm building only. One trap belongs specifically to small buildings: where a jurisdiction does issue permits, IRC R105.2 exempts one-storey detached accessory structures only up to 200 square feet — a shed rule that reaches no shop — and its opening sentence says an exemption from permit does not authorise work done in violation of the code.

Is a small build under the Arkansas contractor licensing threshold?

No. The threshold is far lower than people expect and a barndominium of any size clears it. The exemption at A.C.A. § 17-25-513(3)(A) covers a residential building contractor or home improvement contractor on any project where the cost of the work done or to be done does not exceed two thousand dollars, and subsection (B) expressly defeats splitting a project into separate contracts below that figure. The $50,000 figure repeated all over the internet is something else entirely: § 17-25-506(a)(1) makes a compiled financial statement a filing requirement at $50,000 or more, which is documentation, not licensing. The exemption that does reach a landowner is § 17-25-513(1), which lets a person build their own residence without a licence unless they build more than one in a calendar year, and 17 CAR § 295-101(6) defines own residence as the personal residence, the principal place of abode, the domicile, or a residence constructed for the occupancy of the person who owns the property — so a building put up to sell or rent falls outside it. One more point before hiring: § 17-25-513(4) exempts a subcontractor only where the prime is licensed by the Residential Contractors Committee, so an unlicensed prime exposes every subcontractor on the job as well.

Want this drawn for your program and your parcel? That is where a build actually starts.

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Tell us what you want to build and we will draw a undefined building for your program, then confirm what it looks like on your parcel, the wind load it has to meet, and a realistic budget range. That conversation costs nothing.

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