Before any concrete gets poured or steel goes up, there’s a stack of paperwork and planning to handle. We need a survey of the land, a soil test to make sure the ground can hold a building, drawings done by a real engineer, and a permit for the septic system.

In the unincorporated parts of Bell County, you don’t need a building permit. But you do need permission for the septic, and you should apply for the agriculture tax break right away.

Skipping any of this can shut the whole project down.

The foundation is the concrete slab that the whole building sits on. For a barndo, we pour one big concrete pad with metal bolts sticking out — those bolts later hold the steel frame in place.

Central Texas has a lot of clay in the dirt. Clay swells when it rains and shrinks when it’s dry, which can crack a normal slab. So we use a special kind called a “post-tension” slab that has steel cables inside to hold it together.

Get this part right or every other part of the build gets harder.

This is the building’s skeleton — the steel beams that hold up the roof and walls. Barndos use heavy-duty steel called “red-iron,” which lets you have rooms 40 to 60 feet wide with no support columns in the middle.

That’s why barndos feel so open inside. There aren’t walls dividing things up the way there are in a normal house.

The frame also has to be engineered to handle strong winds — at least 110 miles per hour for our area.

The roof keeps the rain and sun off everything. Almost every Texas barndo uses “standing seam” metal roofing — long sheets of metal with raised seams where they connect.

This kind of roof can last 50+ years and survive most hailstorms. Central Texas gets a lot of hail, and a good metal roof can actually save you money on home insurance every year.

Going lighter on the color also helps keep the attic cooler in summer.

This is everything you can see from outside — the walls, the windows, the doors, the trim. The most popular barndo look uses metal siding with vertical lines (called “board-and-batten”), often with stone or wood accents around the porches.

The most important part in Texas is the windows. They need special tinted glass that blocks heat and ideally can survive hail.

A big porch with deep roof overhangs keeps direct sun off the walls and cuts the cooling bill way down.

This is all the pipes — water coming in, drains going out. Out in the country, water usually comes from a well you drill yourself instead of city pipes (about $15,000 to $25,000 for the well).

Waste water goes into a septic tank buried in the yard, not a sewer. The size of the septic system depends on how many bedrooms are on the property total — including all the ADUs.

Texas water has a lot of minerals in it. Without a water softener, your faucets and shower heads will be ruined in two or three years.

This covers all the wires, the main electrical panel, the outlets, and the lights. Rural electric companies bring power from the road to your house. If you’re set back from the road, this connection alone can cost $5,000 to $30,000.

Most country homes also have a backup generator because Texas ice storms can knock out the power for days. A unit like Generac kicks on automatically.

While the electricians are running wires, it’s smart to add empty pipes for future solar panels and electric car chargers. Way cheaper to add them now than later.

HVAC stands for heating, cooling, and moving the air around. Barndos have tall ceilings and big open spaces, which actually makes them harder to cool than normal houses.

Most barndos use “mini-split” systems — small wall-mounted air conditioners that handle one room at a time — instead of one giant central system. You can cool just the rooms you’re using.

Getting the size right matters a lot. Too big and the air conditioner cycles too fast and leaves the house clammy; too small and it can’t keep up with August.

Insulation is the stuff in the walls and roof that keeps heat from passing through. In Texas, you want “spray foam” — a foamy material that gets sprayed against the inside of the walls and roof and hardens.

Spray foam seals every little gap and works way better than the pink fluffy stuff most houses use. It costs more up front but saves a fortune on electric bills every month.

This is one of the smartest places to spend a little extra money.

This is the finished inside — the drywall on the walls, the paint, the trim around the doors, the cabinets. Barndos often have really tall ceilings (10 to 14 feet), so planning where the lights and ceiling fans go matters a lot.

The visual trick that works best is keeping things simple. Clean lines, neutral paint, and letting the steel structure show where it makes sense.

If you over-decorate a barndo it loses the look that makes it special in the first place.

The floor in every room. The cheapest and most common barndo floor is just polished concrete — you stain and seal the same slab you already poured. Looks great, lasts forever, easy to clean.

The next most popular is LVP (luxury vinyl plank) — fake wood planks that snap together and don’t care about water.

Different buildings on the compound need different floors. The bakery shed needs food-safe sealed concrete. Susan’s ADU needs slip-resistant flooring for safety. The workshop needs tough epoxy coating that doesn’t stain when oil drips on it.

The two rooms with running water and the highest cost per square foot. Since this is a shared family compound, the main kitchen is built around a big island where everyone gathers.

Out in the country where there’s no natural gas line, kitchens use propane (a big tank outside the house) for the stove and water heater.

Bathrooms need really good fans because Texas humidity creates mold problems fast if the moisture from showers can’t escape.

This covers internet, Wi-Fi, security cameras, smart locks, and the wiring that ties it all together. Out in rural Bell County, regular internet companies often don’t reach. Most country folks now use Starlink (satellite internet from SpaceX) at about $120 a month.

We plan one room as a “network closet” where all the gear lives. Easier to keep tidy and easier to upgrade.

Steel walls in a barndo can mess with Wi-Fi signals, so we plan extra little Wi-Fi boxes around the property to cover every room and the ADUs.

Everything outside the buildings — driveway, drainage, plants, fencing, outdoor lights. In Texas, the biggest priority isn’t pretty landscaping. It’s drainage — making sure flash floods don’t wash dirt out from under the foundation.

We use plants native to Texas (like Texas Sage and Lantana) that don’t need much water. They look good and your water bill stays low.

The fence around the property needs to be a certain type if we want to qualify for the agriculture tax exemption.

The last bit at the very end of the project. Inspectors come check certain phases (foundation, framing, septic) to make sure everything was built to code.

Your builder gives you warranties — usually 10 years on the steel structure, shorter on other things. Keep all the paperwork.

Schedule a walkthrough at month 11 (before the 1-year warranty runs out) to catch anything that’s started settling or showing problems. Don’t skip this — it’s where you catch small things before they become big things.