This is Part 1 of a four-part series on the semi-truck parking business. This part covers what the business actually is and why it's one of the most overlooked opportunities in real estate. Parts 2 through 4 get into how to find a location, what it costs to build, and what it earns.

Most of what I do comes down to one habit: I go looking for the parts of real estate that nobody else is paying attention to.

That is how I ended up buying vacant land for pennies on the dollar back when almost no one was doing it. It's how I ended up building a self-storage facility. I'm not interested in bidding against forty other people for a house. I would much rather find the boring, overlooked corner of the market where the competition hasn't shown up yet.

About a year ago, I found one of those corners. And I have been a little obsessed with it ever since.

It has nothing to do with houses. Nothing to do with apartments, or Airbnbs, or anything you would picture when someone says “real estate investing.” It is parking lots. Specifically, parking lots for semi-trucks.

I know how that sounds. Stick with me, because once you see how this business works, you will start noticing the problem it solves everywhere you drive.

This series is everything I learned after a year of studying it: what the business actually is, who pays for it, what it costs to build, and what the returns really look like on real deals I ran the numbers on.

Let's start with the problem, because the problem is the whole opportunity.

A semi-truck has nowhere to sleep

Picture a semi-truck. The big rigs you pass on the interstate, a cab up front pulling a long trailer behind it. The whole thing is around 70 feet long and can weigh up to 80,000 pounds fully loaded. That's roughly the weight of a small house rolling down the highway.

Somebody drives that truck. And at some point, that person goes home.

Where does the truck go?

It doesn't go in the driveway. It physically doesn't fit, and even if it did, the neighbors and the homeowners association would lose their minds. It doesn't go on the street in front of the house, because most cities have ordinances that specifically ban parking commercial vehicles that size in residential neighborhoods. Some cities will fine you hundreds of dollars for trying. It obviously doesn't fit in a Starbucks lot, or a grocery store lot, or anywhere else a normal vehicle would go.

A semi-truck is a piece of equipment the size of a building, and its driver has to put it somewhere every single time they stop working.

This isn't a small problem affecting a handful of people. There are millions of trucks on American roads, and a huge share of them belong to small operators. According to the American Trucking Associations, about 91.5 percent of trucking companies run ten trucks or fewer. These aren't giant corporations with their own terminals and secure yards. These are one-truck and three-truck outfits, often a person who owns their rig and works for themselves.

Those folks have nowhere to park.

You've probably seen the evidence of this; you just didn't know what you were looking at. Ever driven past a Walmart at eleven at night and noticed a random semi or two lined up along the back edge of the lot?

Ever seen trucks parked on a highway shoulder or crammed onto an off-ramp? A lot of those drivers aren't there because they want to be. They're there because there's nowhere else to go.

That's the problem. Now here's the business.

Somebody rents them a place to park

If you've ever rented a self-storage unit, you already understand this business.

Self-storage is a simple business. You have something you can't keep at home, so you pay somebody a monthly fee for a safe, secure place to keep it. You get a gate code. You come and go when you want. You pay every month until you don't need it anymore.

Semi-truck parking is a similar trade. The differences are in what's being stored and what the “unit” looks like. Instead of a room with a door, the tenant rents a numbered space on a fenced gravel lot. Instead of a couch, they park a 70-foot truck. Everything else works pretty much the same way: monthly rent, a gate code, a fence, cameras, and lights.

The industry has a name for this whole category. It's called Industrial Outdoor Storage (IOS). It covers any business renting outdoor space for big industrial things: trucks, trailers, shipping containers, construction equipment. Truck parking is the most common flavor of it, and it's the one I went deep on.

Here's why it caught my attention. When you strip it down, this is a real estate business with almost no building involved (more on that soon). You're not constructing apartments, maintaining roofs, or fixing toilets. You're buying land (or an existing building with a big parking lot), putting a fence around it, and renting out squares of it. That's close to the simplest business model in all of real estate.

Two very different versions of this business

Before we go further, I need to separate two things that get lumped together and confused all the time. They're both considered “truck parking,” but they're completely different businesses, and mixing them up will lead you astray.

Version one is nightly parking. Think of the big travel centers: Love's, Pilot Flying J, TA TravelCenters. A driver hauling a load across the country pulls in for the night, takes a shower, grabs food, sleeps, and leaves in the morning. This is the hotel version of the business. It makes a lot more money per acre, but you're running a real operation. You need security staff around the clock, somebody cleaning the bathrooms, someone answering the phone at two in the morning when a driver needs help. It's a job, and a demanding one.

Version two is monthly parking. This is the storage facility version, and it's the one I got interested in. A local driver pays you every month to keep their truck on your lot. That's the whole product. No showers. No bathrooms. No vending machines. No food. No staff. You provide a safe, fenced, well-lit place to park, and you collect rent.

If you know the difference between running a short-term vacation rental and owning a boring self-storage facility, you already understand the difference between these two. One is a hospitality business. The other is an investment that mostly leaves you alone.

Everything from here on is about the monthly model.

One thing that confused me early on, and that I want to save you from: I used to look at those big Love's and Flying J travel centers and think of them as competition with the monthly parking model. They're not. They serve drivers passing through town who need a place to sleep tonight. The monthly business serves drivers who live nearby and need somewhere to keep their truck between jobs. Totally different customers. In fact, if you see a big truck stop nearby, take it as a good sign. It means serious truck traffic runs through that area, and none of it is being served by monthly parking.

Who actually rents these spots?

Your typical monthly tenant is what the industry calls an owner-operator. That just means a truck driver who owns their own truck and works for themselves rather than driving a company's rig. The other big chunk is small family trucking outfits running maybe two to ten trucks.

These people usually live within about twenty minutes to an hour of the lot they rent from.

This detail makes the whole business click. The driver keeps their truck at your lot and drives their personal car home. When it's time to hit the road, they drive their car back to your facility, leave the car parked there, climb into the truck, and disappear for a few days or a few weeks. Then they come back, swap vehicles again, and go home.

Your lot is their home base. It's where their business lives when they're not working.

That's what makes these tenants so sticky. As long as that person keeps driving trucks and keeps living in your area, they need your parking spot, because there's genuinely nowhere else for that truck to go. Nobody wakes up and decides to move their semi somewhere more exciting. A good owner-operator tenant can stay parked with you for years.

On top of that stable base, you'll sometimes get bigger short-term customers. A company like Amazon might grab twenty spots for a busy season. An RV dealer might need somewhere to stash extra inventory.

Those big tenants are mostly a blessing, but they can also be a trap. If you have empty spaces earning nothing, a company that fills twenty of them overnight is fantastic. The danger is letting one customer take so much of your lot that they can wreck you when they leave.

The smart approach is to first fill enough spaces with individual drivers to cover your loan payment and expenses. Then it's a safer bet to hand the leftover space to one big customer. That way, no single tenant can sink you by walking away.

So how bad is this parking shortage, really?

This is where the idea stops being a hunch and starts having actual numbers behind it.

Quick note before I throw figures at you: Most of this comes from federal transportation research, and I'd encourage you to check the original sources before repeating any of it. Thin data is a recurring theme in this business, and you'll see why in a minute.

The most widely cited federal study on this is called the Jason's Law truck parking survey, run by the Federal Highway Administration. It counted roughly 313,000 truck parking spaces in the entire United States. About 40,000 of those are public spaces at highway rest areas. The rest, around 273,000, are private spaces at truck stops and similar places.

Now hold that number against a country with something like three and a half million truck drivers. That works out to a commonly repeated ratio of about one parking space for every eleven trucks.

In that same survey, 98 percent of drivers said they have trouble finding safe parking.

Ninety-eight percent. That's not a minor inconvenience. That's a structural shortage of a basic thing an entire industry needs to function.

Most of that research measures the nightly problem, meaning where a driver stops to sleep mid-haul. I'm more interested in the monthly one.

But there's one statistic in the federal work that points straight at the monthly opportunity, and it's the number that really got my attention: the 32 largest freight metro areas in the country handle about 38 percent of all truck freight tonnage, but they contain only about 8.5 percent of the truck parking spaces.

Read that again. The shortage is worst exactly where the trucks live and work.

A regional study out of the Phoenix area backed this up. Using GPS data, it mapped where trucks in the region actually park and found the demand concentrated at commercial and industrial establishments, not at truck stops and rest areas.

In plain language: most real-world truck parking isn't happening at the Flying J. It's happening in warehouse districts, near industrial parks, close to where drivers actually work and live.

That's the monthly business in a single statistic.

So why isn't everybody doing this?

This is the question I kept circling back to for months. If the demand is this obvious, why isn't this a crowded business full of big investors?

I think one big reason is that the information investors need to make decisions usually doesn't exist, and (understandably) that scares people off.

Let me show you what I mean with a comparison.

Self-storage is a mature, well-understood industry. If I want to build a self-storage facility, I can pay for a feasibility study, and an analyst will hand me a report telling me how many square feet of storage already exist within three miles, what the competitors charge, how full they are, and roughly how fast a new facility will lease up.

With that kind of information, I can make that investment with real confidence, because the data is all sitting there.

Truck parking has none of that.

In my own market in West Michigan, I could only find three or four of these facilities, and half of them don't advertise at all.

No website, no signs, nothing. You'd never know they existed unless somebody who knew somebody told you.

There are no published occupancy rates. No standard pricing data. No feasibility studies. When I tried to figure out what I could charge per space, I couldn't find a straight answer anywhere.

One operator I interviewed, a guy running two facilities near Fort Worth, said it best. The lack of comparable data is exactly what keeps people out of this business.

And that's a big part of the opportunity. The missing data is the moat.

It reminds me a lot of land investing back around 2008. Back then, the information was hard to get, hardly anyone was doing it, and you almost had to convince people the business was even real. That difficulty was precisely why it was so profitable for the people willing to push through it.

It's the same thing here. The people willing to do the uncomfortable work of verifying demand by hand get to move with a confidence nobody else has. I'll come back to this, because it turns out to be the single most important skill in this entire business.

The part that should excite real estate investors

Here's where this connects directly to the world a lot of my readers already live in.

A monthly truck parking lot needs almost nothing from the land itself. No water hookup. No septic system. No soil that passes a perc test. You need a flat, secure, well-drained piece of ground and a little electricity for lights and a gate. That's it.

A truck doesn't care about any of the things that make land valuable to everybody else.

Think about what kind of land nobody wants to buy. Land with no water access. Land where the soil won't perc (so you can't install a septic system, which means you can't put a house on it). There are enormous amounts of dirt out there, especially in the American Southwest, that get written off as nearly worthless for exactly these reasons.

For almost any other use, those are dealbreakers. But for truck parking, these problems are irrelevant.

Flood zones work the same way. A property sitting in a 100-year or 500-year floodplain is a headache for anyone trying to put up a building, so most buyers run from it and the price reflects that. But a truck doesn't mind a floodplain. Worst case, it moves for a couple of days.

If you're a land investor, this should be setting off alarm bells in the best way. You already come across plenty of cheap, ugly, “unbuildable” parcels that everyone else has written off, and this is a business model that turns exactly that kind of dirt into monthly cash flow.

I'll be honest about my own blind spot here, though. As a land guy, my first instinct was to buy raw land and develop it into a parking lot from scratch, because that's how my brain works and it's how I approached self-storage. After a year of study, I think that's probably the worst way to do this. I'll explain exactly why in Part 3, when we get to zoning.

Next up (Part 2): How to pick a location that actually works. This is the single decision that makes or breaks one of these deals. To figure it out, I mapped every location run by one of the biggest monthly-parking operators in the country. Some of what I found confirmed the standard advice. Some of it flat-out contradicted it, especially around highway proximity and how much the traffic out front actually matters (spoiler: not at all). Read Part 2 here.