Self storage investment gets pitched as multifamily with less plumbing, and that framing quietly breaks the model. Both rent space by the unit, so buyers reach for the apartment playbook: a twelve-month lease, an annual renewal, a make-ready between tenants. None of it holds. Storage runs on month-to-month tenancy, repriced several times a year, in a building with almost no tenant improvement and almost no capex between customers. The pricing power, the expense line, and the risk all sit in different places. Underwriting storage like an apartment building is the fastest way to misprice it, and the differences are the entire investment case.
Key Takeaways
Self storage leases are month-to-month, so operators can raise rents on existing customers several times a year, while a multifamily lease locks the rate for twelve months.
Turning a vacated storage unit costs a sweep and a lock. The National Apartment Association reported multifamily leasing expenses rose to $292 per unit in 2024 as turnover costs jumped 17.5% year over year.
Storage carries a lower expense ratio and a lower breakeven occupancy than multifamily because there is minimal tenant improvement, minimal capex, and thin staffing.
Cushman & Wakefield reported self-storage cap rates averaged 5.8% over the trailing six quarters through H1 2025, up from a record low of 5.0% in Q4 2022.
The scarce skill in storage is revenue management, not construction. The value is made by repricing existing customers, not by renovating units.
Why Does Self-Storage Reprice So Much Faster Than Multifamily?
Self storage reprices faster because the lease is month-to-month, not annual. A storage operator can raise the rent on a sitting customer several times a year through existing-customer rate increases, while a multifamily landlord is locked to the contract rate until the twelve-month lease expires. The repricing cadence, not the headline rent, is the real difference.
That gap changes how value gets created. In multifamily, the loss-to-lease closes once a year, on renewal or turnover, and only at market. In storage, the operator manages two prices at once: a street rate to win new customers and a higher existing-customer rate applied to tenants who have already moved in and priced in the friction of moving out. A customer storing a couch and twenty boxes will absorb a rate bump rather than rent a truck. National street rates themselves move constantly. Industry rate trackers put the national average asking rate near $16.90 per square foot in mid-2025, a representative figure that shifts month to month. The asset is repriced in near real time, which means the rent roll you buy is a snapshot, not a contract, and the difference between economic and physical occupancy is where the revenue management shows up.
How Do the Expense and Capex Lines Compare?
The expense and capex lines are where the two asset classes diverge hardest. Storage carries a lower operating expense ratio and far lower capital intensity than multifamily because units have no kitchens, no bathrooms, no HVAC per unit, and no tenant improvement. The building barely changes between a departing customer and the next one, so recurring capital reserves stay thin.
Multifamily runs the opposite way. Every turnover triggers a make-ready: paint, flooring, cleaning, appliances, and lost days of rent. The National Apartment Association reported leasing expenses rose 4.6% in 2024 to $292 per unit, driven by a 17.5% year-over-year increase in turnover costs. Storage turnover is a broom and a new disc lock. That structural difference flows straight to the operating expense ratio and to the reserves a lender and a buyer underwrite.
Dimension | Self-storage | Multifamily |
|---|---|---|
Typical lease term | Month-to-month | 12 months |
Rate-change frequency | Multiple times per year | Once per lease, at renewal |
Tenant improvement | Effectively none | Make-ready every turn |
Turnover cost per unit | Sweep and a lock, nominal | $292 leasing expense per unit, 2024 (NAA) |
Expense ratio (representative) | 35% to 40% of revenue | 45% to 55% of revenue |
Breakeven occupancy (representative) | 60% to 72% leveraged | Higher, driven by fixed costs |
Expense ratios and breakeven figures above are representative ranges, not a single quoted statistic; individual deals vary with market, vintage, and management model.
What Does a Worked Turnover Example Show?
A worked example shows the turnover gap in dollars. Take a 200-unit apartment building and a 700-unit storage facility, each running normal churn. The apartment turns cost thousands per unit in make-ready and lost rent. The storage turns cost almost nothing. Over a year, the storage operator keeps a far larger share of gross revenue, which is the point.
Assume the apartment building turns 45% of its units in a year, a common rate. That is 90 make-readies. At a conservative all-in turn cost of $3,500 per unit for labor, materials, and cleaning, plus lost rent, the building absorbs roughly $315,000 in turnover-driven cost before a single planned capital project. Now the storage facility. Assume it turns 50% of its 700 units, or 350 units, in the same year. Each turn is a sweep and a replacement lock, call it $20. That is $7,000 total. Same churn intensity, radically different cost: $315,000 against $7,000. The storage asset converts occupancy into net operating income with almost none of the frictional leakage that defines apartment operations, which is exactly why its expense ratio sits lower and its breakeven occupancy sits below multifamily. It is also why the breakeven occupancy number means something different in each asset class.
Why Do Cap Rates and Risk Look Different for Storage?
Cap rates and risk look different because storage cash flow reprices continuously and defends itself in a downturn, while its short leases offer no contractual protection. Cushman & Wakefield reported self-storage cap rates averaged 5.8% over the six quarters through the first half of 2025, up from a record low of 5.0% in the fourth quarter of 2022, tracking the same rate repricing every commercial cap rate has absorbed.
The risk profile is a genuine trade. Month-to-month tenancy means there is no weighted average lease term to lean on: every customer can leave next month, so a demand shock hits revenue immediately with no lease to slow it. The offset is that the same short duration lets the operator reprice up the moment demand returns, and the tenant base is granular. Losing one apartment tenant in a 20-unit building is 5% of the rent roll. Losing one customer in a 700-unit facility is 0.14%. Demand is also broad and durable: SpareFoot reported roughly 14.6 million U.S. households, about 11%, rent storage, served by more than 52,000 facilities nationwide. The asset trades tighter than that short-lease profile would suggest because the pricing flexibility and granular demand offset the absence of term.
Frequently Asked Questions
Is self-storage a better investment than multifamily? Neither is categorically better; they carry different risk. Self storage offers faster repricing, lower capex, and a lower expense ratio, but no lease term to protect revenue in a downturn. Multifamily offers contractual term and deep debt markets at the cost of heavier turnover expense and slower rate adjustment.
Why are self-storage expenses lower than multifamily? Storage units have no kitchens, bathrooms, or per-unit HVAC, and turnover is a sweep and a lock rather than a full make-ready. That eliminates most tenant improvement and recurring capital, which pushes the expense ratio below multifamily, where every turn triggers paint, flooring, and lost rent.
How does revenue management work in self-storage? Operators run two prices: a street rate to attract new customers and a higher existing-customer rate applied to sitting tenants who face the friction of moving out. Because leases are month-to-month, these increases can be applied several times a year, which is the primary lever for growing net operating income.
Conclusion
Self storage is not multifamily with less plumbing. It is a different instrument that happens to rent space by the unit. The lease is month-to-month, so the operator reprices several times a year instead of once. The building has almost no tenant improvement and almost no turnover cost, so the expense ratio and breakeven occupancy sit below multifamily. The risk is that no lease protects the revenue, and the reward is that no lease constrains the upside. An operator who imports the apartment model will underwrite an annual renewal that does not exist, budget make-ready costs that do not occur, and miss the revenue management that actually makes the deal. Price it as its own asset. The differences are not footnotes to the multifamily comparison. They are the investment case.