“Self-storage is a good investment” and “this self-storage project is a good investment” are different sentences. Here's what actually determines which one you're looking at.
Self-storage has spent the last decade as the darling of commercial real estate — recession-resistant, low-staff, high-margin. Most of that reputation is earned. But “self-storage is a good investment” and “thisself-storage project is a good investment” are different sentences, and the gap between them is where people lose money. We build these facilities for a living, so we see both the ones that pencil and the ones that shouldn't have been built. Here's the honest version.
The fundamentals are genuinely good. A self-storage facility runs on very little labor — often one part-time manager, sometimes none with modern access control. Operating costs are low: no build-outs between tenants, minimal utilities on standard drive-up, little maintenance on a steel building. Demand is sticky — people who put their stuff in storage tend to leave it there far longer than they plan to. And it holds up in downturns, because the life events that drive storage demand (moving, downsizing, divorce, death, small-business overflow) don't stop when the economy slows.
That's the case for the category. It's real. It's also not the same as the case for your specific deal.
Three things, in order:
Self-storage is a trade-area business — most tenants come from within a few miles. The single biggest predictor of success is whether your area is under-supplied. A market with lots of existing storage and flat population growth can't absorb another facility no matter how well you build it. A growing area that's under-served will fill units almost regardless. This is why a feasibility study — an honest look at existing supply, population, and rents in your specific trade area — matters more than any construction decision. Get this wrong and nothing else saves you.
What you pay to get built determines your return more than what you charge. This is the part we can speak to directly. Building cost varies widely by type — as a national-average starting point (building package + erection + concrete, per square foot):
| Type | All-in est. / sq ft |
|---|---|
| Standard drive-up | $23.50–$33.00 |
| Climate-controlled | $30–$42 |
| Boat & RV | $25.50–$36.00 |
| Conversion / retrofit | $10.50–$16.00+ |
Notice the bottom row. Converting an existing building is consistently the lowest cost-per-square-foot path in — often half the cost of ground-up. If a conversion candidate exists in a good market, that's frequently the strongest return on the board, because you've cut the biggest variable. For a full breakdown of what a facility actually costs to build, we've written that up separately.
Revenue is local rent × rentable square feet × occupancy. We deliberately won't hand you a rent number — anyone who quotes you a universal “self-storage makes X per square foot” is guessing, because it's entirely a function of your market. What we'll say is that the standard drive-up building is the industry workhorse for a reason (lowest cost, broad demand), while climate-controlled units command premium rents but cost more to build and run — so they only pencil where the market pays for them.
The back-of-envelope every developer runs: annual net revenue ÷ total project cost = your yield. Total cost is the building plus land, sitework, and soft costs (permits, financing, design). Net revenue is rent times rentable area times stabilized occupancy, minus operating expenses. Divide, and you have a return you can compare against other uses of the money.
The honest caveat: that calculation is only as good as the assumptions you feed it, and the two that move it most — market rent and stabilized occupancy — are the two we can't supply, because they're yours. What we can do is give you a real building-cost range for your dimensions, so the biggest line in the numerator is grounded rather than guessed. Run your own numbers with our calculator — put in your market's rent and occupancy, and it returns a build-cost range and a rough payback. It won't pretend to more precision than it has, and neither will we.
Because you asked for honest: the failure modes are consistent. Overbuilding into a saturated market. Assuming lease-up will be faster than it is (stabilization often takes 18–36 months, and your pro forma has to survive that ramp). Chasing climate-controlled in a market that won't pay the premium. Underbudgeting the soft costs — land, permits, and financing that never show up in a “per square foot” quote. And treating a national average as a local truth. None of these are construction mistakes. They're feasibility mistakes, made before anyone poured concrete.
For the category: yes, with real fundamentals behind the hype. For your specific project: it depends entirely on your market and your cost basis, and it's knowable before you commit. The developers who do well treat feasibility as the first expense, not the last — they confirm the market is under-served, they get an honest build number, and they run the return on real assumptions before they fall in love with a site.
That's the part we can help with directly: a real building-cost range for your dimensions, and a straight answer on whether a conversion beats ground-up for your situation. The market study is yours (or a specialist's) to run — but when you're ready to put a real number on the build, send us your dimensions and we'll give you a range you can actually underwrite against.
Run your market's rent and occupancy against a real build-cost range, or send us your dimensions for a range you can underwrite against.
Tell us about your project and we'll send you a detailed quote with engineering specs, pricing breakdown, and estimated timeline. No obligation, no follow-up spam.
