Flex Space
What is a flex space, and why do I want one?
Short answer
Flex space is a building designed to do more than one job: a shop that is also a gym, a garage with a studio above it, a barndominium that parks the toys and hosts the family. Costs run from simple steel shell prices up toward custom home prices, depending entirely on how much of the building is finished, conditioned space.
What counts as flex space?
The category covers a family of buildings:
- Shops and oversized garages. Room for trucks, trailers, boats, and the projects a two-car garage cannot hold.
- Barndominiums. A shop and a living space under one roof. The name started with barns; the modern version is usually a steel or post-frame building with a finished interior.
- Studios and workspaces. Home offices, gyms, art and music spaces, detached from the house's noise.
- Industrial man caves. The honest name for a building that exists because you want a great place to keep and use your stuff.
What unites them: big clear spans, tall doors, durable finishes, and a plan for how the space flexes between work, storage, and play.
What actually drives the cost?
Think of a flex building as layers, each optional and each priced:
- The shell. Foundation, structure, roof, and doors. Steel frame and post-frame, wood posts carrying the structure, are the common systems. The shell is the cheapest square footage you will ever buy.
- Utilities. Power for real equipment, water, and a bathroom change the project. A bathroom adds plumbing, a sewer connection or septic decision, and inspections.
- Conditioning. Insulation and heating or cooling turn a shed into a usable room. In St. George heat, an unconditioned steel box is a kiln half the year, so this layer earns its money here.
- Finished interior. Drywall, flooring, a kitchenette, a loft, living quarters. Every square foot you finish moves toward house-grade cost. This is why barndominium prices confuse people: the shop half prices like a shop, the home half prices like a home.
- Site work. Driveways, grading, and utility runs, which get long when the building sits at the back of the property.
The budget question is not "what does a shop cost." It is "how much of this building is a garage, and how much is a house."
What zoning questions come first?
Before you fall in love with a floor plan, three checks:
- Is an accessory building your size allowed on your lot? Cities cap size, height, and lot coverage for accessory structures, and rules differ block to block.
- Setbacks. How far the building must sit from property lines.
- Living quarters. If people will sleep in it, many jurisdictions treat that part as a dwelling or accessory dwelling unit, ADU for short, with its own rules and fees. This one question changes designs, so ask it early.
Washington County jurisdictions each handle these differently. Knowing which city says yes to what is half the value of a local builder.
Why is this my favorite category?
Because flex space is where value engineering shines. Shell where a shell serves, house-grade where it counts, nothing gilded that does not need to be. This is exactly the kind of building I design and build, and the first meeting is always the same honest math: what do you want the building to do, and what is the cheapest structure that does all of it well? Bring me the wish list and the property, and I will bring the numbers.