Key takeaways
- Storage runs lower expense ratios than apartments — often 30% to 40% of revenue.
- Month-to-month leases allow frequent rate increases and rapid revenue capture.
- Demand is hyper-local; a three-mile radius analysis is the core of underwriting.
- New supply is the primary risk and can appear quickly in unrestricted markets.
Why the economics differ
Storage has no plumbing in units, no appliances, minimal interior finish, and very low turnover cost — a unit turns with a broom and a lock change. Operating expense ratios commonly run 30% to 40% of revenue versus 40% to 50% for apartments, and existing customer rate increases meet relatively little resistance because moving stored goods is genuinely inconvenient.
Leases are month to month, which means revenue can be repriced continuously. Sophisticated operators run existing-customer rate increase programs that drive most of their same-store revenue growth.
Underwriting an existing facility
Start with a three-mile trade area analysis: population, household growth, median income, apartment share of housing stock, and existing square feet of storage per capita. Compare against the national benchmark and against what the local market has historically absorbed.
Then examine the rent roll for economic occupancy versus physical occupancy — a facility at 92% physical occupancy with heavy concessions and stale in-place rates has a very different value than the headline suggests. Check for management software, delinquency processes, auction cadence, and whether the previous owner has been holding rates flat to prop up occupancy before sale.
Supply risk and development
Storage is comparatively cheap and fast to build, which means strong markets attract supply. A facility underwritten on today's rates can face a very different market when two new Class A facilities open within two miles. Check permitting activity and planning agendas before buying.
Ground-up development carries lease-up risk measured in years, not months. Stabilization typically takes 24 to 36 months, during which the asset carries debt with limited income. That is a development risk profile, not an income investment.
Frequently asked questions
Can storage be managed remotely?
Increasingly yes. Third-party management from national operators runs roughly 5% to 7% of revenue plus fees, and unmanned or kiosk-based facilities are common.
What cap rates does storage trade at?
It varies by market, facility class, and cycle. Institutional Class A in major metros prices tighter than secondary-market Class B and C. Compare against recent local sales, not national averages.
Is climate-controlled space worth the premium?
In hot and humid climates, yes — it commands meaningful rent premiums and broadens the customer base. In moderate climates the premium is thinner.
Sources & further reading
- Self Storage Association industry fact sheet
- Yardi Matrix self storage national reports
- Institutional storage operator public filings
Figures and rules change. Verify current requirements with the issuing agency or a licensed professional before acting.