How to buy a self storage facility: what to check
Short answer
Self storage is mostly a real estate business with an operating layer. When buying a facility, verify the rent roll from the management software (every unit, tenant, rent and move-in date), separate physical occupancy (units rented) from economic occupancy (rent actually collected vs potential), and check delinquency, lien sale history, street rates vs in-place rents, operating expenses including property tax (which may be reassessed on sale), insurance, and any expansion land or permits.
Self storage looks like the ultimate boring business: rent units, collect rent, repeat. The diligence is in the rent roll, the expenses a new owner will face, and the competition down the road.
Rent roll analysis
| Metric | Source | Watch for |
|---|---|---|
| Units by size, occupied vs vacant | Management software | Mix vs local demand |
| In-place rent vs street rate | Rent roll, website | Room for increases, or above-market tenants who may leave |
| Economic occupancy | Collections vs potential | Discounts, free months, delinquency |
| Delinquency and lien sales | Software reports | Collection problems |
| Move-ins and move-outs | Software | Demand trend |
| Ancillary income | Insurance, locks, truck rental | Sustainable? |
Worked example: physical vs economic occupancy
Illustrative example, not a real facility or market rents
A facility has 400 units with a combined street rate (what new tenants would pay today) of $52,000 a month. The rent roll shows 360 units rented, so physical occupancy is 90% (360 ÷ 400). But many long-term tenants pay old rates, discounts were given to fill units, and some tenants are behind. Rent actually collected last month was $40,560, so economic occupancy is $40,560 ÷ $52,000 = 78%. The 12-point gap is either upside (raise in-place rents toward street rates, collect better) or a warning (rates had to be cut to keep units full). Ask for the rent roll with each tenant's move-in date, current rent and last increase, plus a delinquency aging. Then estimate what happens if you raise below-market rents: some tenants will move out.
Expenses a new owner faces
- Property tax after reassessment on sale (check local rules).
- Insurance at your premiums, not the seller's.
- Management: a manager's pay or a third-party manager's fee if the seller self-manages.
- Repairs: roofs, doors, paving, gates, cameras.
- Software, marketing and online listing costs.
Other checks
- Title, survey, zoning, environmental assessment (lenders commonly require).
- Expansion land and approvals.
- Competition: new facilities planned nearby.
- State lien law compliance in past auctions.
Competition, ancillary income and management
Storage demand is local, and new supply nearby can push rates down for years. Drive the area, check planning department records for approved or proposed facilities, and compare street rates for similar units. Ancillary income (tenant protection or insurance programs, truck rental, locks and boxes, admin and late fees) can be meaningful; ask how each is earned, whether any program is run by a third party under a contract you'd inherit, and whether late fees comply with state rules. If the owner runs the office or lives on site, budget for a manager. Many facilities are run largely through software and remote kiosks; check whether the systems and gate access are owned or subscribed and what they cost.
Worked example: raising below-market rents
Illustrative example, not market rents or tenant behavior
Of 360 rented units, 120 are long-term tenants paying an average of $78 a month when the street rate for the same units is $105. Raising them to street rate adds 120 × $27 × 12 = $38,880 a year if nobody leaves. If 20% of them move out (24 units) and those units take four months on average to re-rent at street rate, you lose 24 × $78 × 4 = $7,488 in that year, for a net gain of about $31,400 in year one, and more later. That's the kind of increase a new owner can earn, but it's yours to earn and its risks are yours. Price the business on the rents actually collected, not on what they could be.
Red flags specific to self storage
- Physical occupancy high, economic occupancy low, with no explanation.
- A rent roll that doesn't tie to deposits and the P&L.
- Property tax that will jump on reassessment at the new price.
- Frequent lien sales, or lien sales done without the statutory steps.
- New facilities approved nearby.
- Roofs, doors, paving and gates overdue for replacement; drainage problems.
Worked example: property tax after the sale
Illustrative example, not any jurisdiction's tax rules
The facility's P&L shows property tax of $18,000 a year, based on an assessment set years ago. You agree to buy it for $3,000,000. In many places, a sale can trigger reassessment closer to the price paid. If the local effective rate were 1.5% of value, the new bill would be about $45,000, $27,000 more a year. On net operating income of $260,000, that's over 10% of the income gone before you change anything. Check how your county assesses after a sale, get an estimate from a local tax adviser, and use the post-sale tax in your numbers, not the seller's.
What moves the value of a storage facility
We don't value deals or publish capitalization rates we can't verify. Appraisers and lenders weigh these factors:
| Factor | Supports a higher value | Pulls it lower |
|---|---|---|
| Economic occupancy | Close to physical occupancy | Large gap from discounts and delinquency |
| Rents | In-place near street rates | Well below, with tenants likely to leave if raised |
| Supply | No new facilities nearby | New supply approved or under construction |
| Condition | Roofs, doors, paving and gates sound | Deferred capital items |
| Expansion | Land and permits to add units | No room to grow |
Questions to ask the seller
- Can I have the rent roll with move-in dates, current rents and last increase for every unit?
- What's delinquency by age, and how many lien sales did you hold last year?
- What are street rates by unit size, and when did you last raise in-place rents?
- What does property tax look like, and has it been reassessed recently?
- Who runs the office, and how many hours does it take?
- Any competing facilities planned nearby?
Testing the rent roll in the management system
Most facilities run on management software that records every move-in, move-out, rate change, discount and write-off. Ask for those reports, not just the current rent roll. Compare move-ins and move-outs month by month, and look at discounts and concessions: a full facility with heavy first-month free offers earns less than the occupancy suggests. Check write-offs and units in lien status against the delinquency report. Then reconcile collected rent with bank deposits. Rent rolls are easy to tidy; the transaction history is harder.
Tenant protection and insurance programs
Many facilities earn fees from a tenant protection or insurance program offered at move-in. Ask how the program works, who the provider is under contract, what share of tenants take it, and whether the agreement transfers to you. Make sure the program complies with your state's rules for selling it.
Walk every building with the manager before closing and open a sample of vacant units. Check roofs, doors, gates, cameras and paving, and ask for the repair log. Deferred maintenance on doors and roofs is a common cost that the rent roll doesn't show, and units that can't be rented because they leak or don't lock are vacancy the seller may be counting as available.
Frequently asked questions
What's the difference between physical and economic occupancy?
Physical occupancy is the share of units rented. Economic occupancy is rent collected as a share of what all units would bring at current rates, which captures discounts, delinquency and below-market rents.
Why does property tax matter so much?
In many places a sale triggers reassessment closer to the purchase price, which can raise taxes well above the seller's. Model the new tax bill, not the old one.
What are lien sales?
Auctions of delinquent tenants' contents under state self-storage lien laws. Frequent lien sales signal collection problems; procedures must follow state law.
How are storage facilities financed?
Often with commercial real estate loans or SBA 504/7(a) loans where eligible, with the property appraised. Lenders focus on net operating income and occupancy.
How are self storage lien sales regulated?
By state self-storage lien laws, which set notice periods, how and where sales are advertised, and what happens to proceeds. A facility that runs frequent lien sales may have delinquency or collection problems, and one that hasn't followed the statute can face claims. Ask for the lien sale log and the notices used.
How do I verify a storage facility's income?
Match the management software's monthly rent collected to bank deposits and the tax return, then check a sample of tenant ledgers against the rent roll. Ancillary income (protection plans, fees, retail) should show up in its own reports. Ask for a delinquency report and the lien sale log as well.
Sources
- SBA: 504 loans (real estate)
- SBA SOP 50 10 8.1 (real estate appraisal; blended terms)
- ASTM E1527-21 (Phase I environmental site assessment)
- ADA Title III regulations, 28 CFR Part 36
Related guides
General information, not legal, tax, financial or investment advice. Rules and lender practices change; check the linked sources and talk to your attorney, CPA and lender about your deal. Examples with named numbers are illustrations, not real businesses. OKtoBuy's Deal Check does not value businesses or give price opinions.