The interior of a shouse where a finished living area with warm flooring meets a shop bay with polished concrete and a tall roll-up door.

Shouses in Indiana

A shouse puts a working shop and a finished home under one roof, and the wall between the two halves does more work than any other wall in the building. It is a fire separation under the 2020 Indiana Residential Code, which Indiana amended so that no door may open from a garage straight into a bedroom. It is a zoning line, because the county ordinances around Indianapolis define an accessory building as a detached one, so a shop under the same roof as the house is judged as part of the dwelling rather than as a barn. And it can be a building-code boundary: Indiana law keeps a house in the residential class, Class 2, only unless any part of it is regularly used by the public or by someone's employees, which is how the state defines a commercial Class 1 building. Your shop can be a hobby, a farm shop or a one-person business. Which one it is gets settled before the floor plan does, because the answer changes the drawings.

Drawings prepared for permit review
Designed to your county's design loads
Start your project

Shouses: how the work runs

Four stages, in this order. The sequence matters more than it looks: getting structural design and permitting settled before anything is fabricated is what keeps a build from stalling.

1

Decide what the shop is for

Before anything is drawn we pin down how the shop will actually be used, because Indiana's building law sorts buildings by use. A shop for your own vehicles, projects and farm equipment keeps the whole building a Class 2 residential structure under IC 22-12-1-5. A shop regularly used by customers, or by one or more people working as someone else's employees, is the definition of a Class 1 structure in IC 22-12-1-4, and Class 1 construction runs through a state design release under IC 22-15-3 rather than the residential code. If a paid crew or walk-in customers are part of the plan, that conversation happens with your building official now, not after the slab is poured.

2

Read the zoning text for your parcel

The shop half of a shouse sits in the gap between two zoning rulebooks, and which one applies depends on the ordinance's own definitions. Boone County's zoning ordinance defines an accessory structure as one detached from the principal building, caps a residential accessory structure in its AG district at 3,000 square feet, and bars living quarters in an accessory structure without a variance. Johnson County's UDO defines a detached accessory building as one that shares no wall or roof with the primary building. Under both, a shop built under the dwelling's roof is part of the dwelling. We read the actual text for your county or town, and we ask the plan commission for its reading in writing, before the footprint is final.

3

Draw the separation wall properly

Where the shop houses vehicles, it is treated as a garage, and the 2020 Indiana Residential Code is specific about the wall between it and the house. Table R302.6 of the 2018 IRC, which Indiana adopted without change, calls for not less than half-inch gypsum board on the garage side of the separation from the residence and attics, and 5/8-inch Type X gypsum board where habitable rooms sit above the shop. Indiana's own amendment to R302.5.1 bans any opening from the garage directly into a room used for sleeping, and requires every other door between garage and house to be solid wood or steel at least 1-3/8 inches thick, or 20-minute fire-rated. Ducts in the garage or passing through that separation must be No. 26 gage sheet steel or other approved material, with no openings into the garage.

4

Finish each half for its own job

The living side gets a residential finish; the shop side gets the door heights, circuits, floor drains and slab you actually asked for. Indiana makes fire sprinklers optional in a Class 2 dwelling under its own rewrite of IRC Section R313, so a sprinkler in the shop half is your decision, not a code demand; if you choose one, it goes in to IRC P2904 or NFPA 13D. The septic permit is its own track: under 410 IAC 6-8.3 a written construction permit signed by the local health officer is required before construction of the residence starts, and the soils are described by a registered soil scientist, not guessed from a perc test.

A red oxide primed structural steel frame partly erected on a concrete slab, showing bolted knee joints and anchor bolts.
One roof, two classes

A shouse stays a house only while the shop stays private

Indiana's building law does not ask how big your shop is. It asks who uses it. IC 22-12-1-5 defines a Class 2 structure as a building containing one or two dwelling units, and an outbuilding for one such as a garage or barn, unless any part of the building is regularly used as a Class 1 structure. IC 22-12-1-4 then defines Class 1 by use: any part occupied or otherwise used by the public, by three or more tenants, or by one or more persons who act as the employees of another. On a detached pole barn that distinction affects one building. On a shouse it affects the building your family sleeps in, because the shop and the house are the same structure. Class 2 is governed by the 2020 Indiana Residential Code and whatever permit process your city, town or county runs. Class 1 construction needs a design release under IC 22-15-3 and is built to the commercial rules. None of this touches a shop where you restore your own truck, keep the tractor, or run a one-person business from your own bench. It becomes a live question the day the plan includes a hired hand, a showroom or customers walking in, and it is far cheaper to settle before design than to discover at an inspection.

Where we deliver shouses

Across Indiana the code is shared, but the office that applies it is not. Cross a city or county line and what changes is who reviews the drawings, what they charge, how the land is zoned, and the county design figures the work is drawn to. Two parcels twenty miles apart can carry different paperwork and a different structural answer.

Serving clients across the entire region.

Every locality we build in has its own reviewer, its own fee schedule and its own filled-in design criteria. The service area pages set out what each one publishes.

View our full service area →
Before you commit

What actually decides the price

Square footage is the number everyone leads with, and it is rarely the one that moves a barndominium budget. These four do.

  • Where the wall between shop and home falls

    The split sets the frame, the slab on each side, the ceiling heights and the mechanical plan all at once, and in Indiana it also sets the separation detail. Table R302.6 asks for half-inch gypsum board on the garage side of the wall to the house and attic, and 5/8-inch Type X under any habitable room above the shop, so a loft bedroom over the shop bay is a real line item. Indiana's amendment to R302.5.1 rules out a door from the shop straight into a bedroom, which can move a bedroom or a hallway on the plan.

  • Which zoning text your land sits under

    Size caps, living-quarter bans and material rules in Indiana are local zoning, not building code, and the state's no-stricter rule for building ordinances expressly leaves zoning ordinances alone under IC 22-12-2.5-5. Boone County, for one, caps a residential accessory structure in its AG district at 3,000 square feet and 4,000 square feet in total. Whether your shop is judged against a cap like that, or as part of the house, depends on whether it is attached, and on the wording of your county or town ordinance.

  • Whether a business runs out of the shop

    A home business is allowed in most residential zoning, inside limits that bite on a shop. Boone County limits a home occupation to 25 percent of the floor area of any one story, one non-family employee, and no uses associated with vehicle repair. Johnson County's UDO allows a home business up to 25 percent of the dwelling's gross floor area, counts a permitted accessory building toward that area, and lists equipment and vehicle repair, welding and commercial cabinetry among the prohibited home businesses. Those are two counties' rules, not the state's, and they are the kind of limit worth knowing before the shop is sized.

  • Eave height and the big doors

    An RV bay or a vehicle lift changes the column sections and the footings under them, not just the wall panels, and every large overhead door interrupts the frame and needs framing and reinforcement around it. A shop wall carrying three tall roll-ups is a different structure from the same wall with no openings. This is where a shouse budget most often moves without anyone deciding that it should, and it is decided in the first meeting, not the last.

The interior of a shouse where a finished living area with warm flooring meets a shop bay with polished concrete and a tall roll-up door.

Shouses in Indiana: common questions

8 questions we get asked most often about building in Indiana. If yours is not on the list, ask it directly.

Start your project
Can I build a shouse on my land in Indiana?
Almost always the building itself can be designed to comply, because a shouse is a Class 2 residential structure under the same 2020 Indiana Residential Code as any other house, and that code is in force in every location in the state. The question is zoning, and zoning in Indiana is local. Your county or town decides whether a dwelling is allowed in your district, how far it sits from the lines, and how a large shop is treated. An improvement location permit, which IC 36-7-4-801 lets a zoning ordinance require for any structure on platted or unplatted land, is usually the first permit on a rural parcel. We check the ordinance that covers your parcel before you pay for drawings.
How much does a shouse cost to build in Indiana?
We price each shouse from its drawings rather than from a per-square-foot guess, because the shop half is where the spread lives: eave height, door count and size, slab thickness, heat in the shop and how the separation wall is built all move the number more than finishes do. The fastest way to a real figure is to tell us the shop-to-living split you have in mind, the doors you need and where the land is. Our planning survey collects exactly that, and we come back with a scoped estimate for your building rather than a range for everyone's.
Can the shop be a detached building instead of attached?
Yes, and in Indiana the choice changes which rules apply. A detached shop is an accessory structure under county ordinances like Boone County's, so it meets their accessory-structure rules: Boone caps a residential accessory structure in its AG district at 3,000 square feet and bars living quarters in one without a variance, and says an accessory structure may not go up before the primary structure unless it qualifies as a farm building. On the building-code side, Indiana's amendment adding R309.6 says any habitable area in a detached garage or accessory structure must meet all applicable sections of the code and have an egress door or window. An attached shop avoids the accessory caps but brings the garage separation rules into your house. We draw both when a client is undecided.
Does the shop have to be fire-separated from the living space?
Where the shop is a garage in code terms, yes. The 2020 Indiana Residential Code carries the 2018 IRC's Table R302.6 without change: at least half-inch gypsum board on the garage side of the wall to the house and attic, and 5/8-inch Type X gypsum board where habitable rooms are above. Indiana rewrote R302.5.1 so that no opening may lead from a private garage directly into a room used for sleeping, and so that other doors between garage and residence are solid wood or solid or honeycomb-core steel at least 1-3/8 inches thick, or 20-minute fire-rated. Indiana's version also allows 20-minute-rated pull-down stairs in a garage-to-attic separation. A shop used only for woodworking, with no vehicles, is an edge case your building official decides, and we ask before drawing it.
Can I run my business out of the shop half?
Often, within limits. Zoning limits come first: Boone County allows a home occupation on no more than 25 percent of the floor area of any one story and prohibits uses associated with vehicle repair; Johnson County's UDO prohibits equipment and vehicle repair, welding and commercial cabinetry as home businesses and caps the area at 25 percent of the dwelling's floor area. The building code is the second limit. Indiana classifies any part of a building used by the public or by one or more persons working as another's employees as a Class 1 structure, and a two-unit-or-fewer dwelling stays Class 2 only unless part of it is regularly used that way. If employees or customers are in the plan, tell us at the start.
Do I need a building permit for a shouse?
That depends on where the land is, not on the building. Indiana writes the residential code but does not issue house permits or inspect houses; the city, town or county does, where it runs a building department. The state's Department of Homeland Security directory lists no local building official for the unincorporated area of 24 counties, and DHS says that where there is no local, the residential issue becomes a private civil matter. The septic construction permit from the county health officer and any zoning permit still apply. We confirm all three offices for your parcel, and we build to the code either way.
How deep do the footings go under a shouse?
The state sets it by county. Table R301.2(1) of the 2020 Indiana Residential Code (675 IAC 14-4.4-5) puts the minimum footing depth for Allen County, Elkhart County and Lake County at 36 inches, for Marion County and Hamilton County at 30 inches, and for Monroe County and Vanderburgh County at 24 inches, with every other county assigned one of those three depths. Local units cannot raise those figures, so the table row for your county is the one we build to. A detached accessory building of 721 square feet or less can use the lighter foundations in Indiana's Table R309; a shouse, being the house itself, cannot.
How do I get a shouse design and quote started?
Start with the planning survey. It asks for the county and township of your land, the shop-to-living split, the doors and eave height the shop needs, and whether anyone other than your household will work in or visit the shop. From that we check the zoning text and permit offices for your parcel, sketch the layout with the separation wall where it belongs, and give you a scoped estimate. Indiana does not issue a state contractor licence, and since 2013 its law has barred cities and counties from creating new licensing requirements for home builders, so the useful checks on any builder are local registrations where the job is, written scope, and references.

Keep reading

The pages that answer the next question this one raises.

Barndominium With Shop

The plan-side version of the same idea: living space and a working bay under one roof.

Read it

Are Barndominiums Worth It?

The shop-plus-living economics is the strongest case for this building type.

Read it

40x60 Barndominium

The footprint that most comfortably splits into living and working halves.

Read it

Ready to put shouses against a real plan? Start there and the rest follows.

Start your project

Sources

  1. Indiana Code Title 22 (2026) — Indiana General Assembly
  2. 675 IAC 14-4.4-8 (Indiana Residential Code, R302.5.1 garage opening protection) — Cornell LII
  3. Boone County Zoning Ordinance, Dec. 2025 amendments — Boone County, Indiana
  4. Johnson County Unified Development Ordinance — Johnson County, Indiana
  5. Indiana Residential Code, chapter 3 Building Planning — UpCodes
  6. 675 IAC 14-4.4-21 (Indiana Residential Code, R313 fire sprinkler systems) — Cornell LII
  7. 410 IAC 6-8.3 Residential On-Site Sewage Systems (rev. 28 Mar 2024) — Indiana Department of Health
  8. Adoption and Implementation of the 2020 Indiana Residential Code — Indiana Department of Homeland Security
  9. Indiana Code Title 36 (2026) — Indiana General Assembly
  10. 675 IAC 14-4.4-12 (Indiana Residential Code, R309.6 and Table R309 garages and accessory structures) — Cornell LII
  11. Code Enforcement — Indiana Department of Homeland Security
  12. 675 IAC 14-4.4-5 (Indiana Residential Code, Table R301.2(1) county design criteria) — Cornell LII

Tell us about the land

Send the parcel ID or an address and we will come back with what can be built on it, which office permits it, and a realistic budget range. That conversation costs nothing.

Start your project