Guides
How to Value a Self Storage Facility Listed for Sale
Self storage facility valuation starts with trailing net operating income and a market cap rate. A physical audit and lease review adjust the result.
What to take away
- A self-storage facility is valued on trailing net operating income, not on asking price or replacement cost.
- Typical cap rates run 5.5% to 6.5% for newer climate-controlled assets in primary markets, 6.5% to 7.5% in secondary markets, and 7.5% to 9% for older drive-up facilities in tertiary markets.
- Physical condition changes value only when it forces near-term spending or cuts future rent.
- A defensible valuation memo shows the rent roll, expense load, cap rate and each adjustment.
A buyer who skips the self storage unit occupancy rebuild accepts the seller's revenue story without evidence. Start with that rebuild before touching the seller's profit and loss.
What has to be true before the first step
Collect the trailing 24 months of owner profit and loss, bank statements, a current rent roll, signed leases, tax bills, insurance certificates and a site map. Read the lease assignment and renewal language against general contract principles from Cornell Law School's contract overview. You also need access to drive the property and inspect units, gates, lights and roofs.
Check that the rent roll lists every unit, its current rate, move-in date and concessions. You need the unit mix and sizes because a facility with many small lockers and few large drive-up units carries different income risk. The physical audit follows the same logic as a normal operations review, but the goal here is value, not compliance.
If the seller withholds documents. Ask for signed tax returns, county tax bills and a certificate of occupancy. County tax bills and certificates of occupancy are public records, so you can pull them yourself.
Count locks and vacant units on the walk to estimate occupancy, and label that figure an estimate. Put a written seller representation about the rent roll into the purchase agreement. Hold part of the price in escrow until the leases and bank statements appear.
If the documents never appear, cut the price or walk away.
The valuation sequence
- Rebuild trailing twelve-month revenue from the rent roll, ancillary fees and concessions. Reconcile the total to bank deposits within 2%.
- Rebuild trailing twelve-month operating expenses excluding debt service, depreciation and owner draws. Include property tax accrual, insurance, payroll, utilities, marketing, maintenance and management fees.
- Calculate net operating income by subtracting step 2 from step 1.
- Select a market cap rate. Use Marcus & Millichap self-storage cap rate benchmarks and the implied cap rates from public self-storage REIT earnings for similar tier assets.
- Divide net operating income by the cap rate.
- Adjust for unit mix drag, lease-up loss, below-market rent and deferred maintenance.
Worked example: a 400-unit facility. The rent roll shows 320 units leased at an average of $92 a month. That is $353,280 a year. Ancillary income adds $18,000, and concessions subtract $6,000.
Effective gross income is $365,280. Operating expenses come to $145,000: property tax $38,000, insurance $11,000, payroll $45,000, utilities $14,000, marketing $7,000, repairs $12,000 and management fees $18,000. The expense ratio is 39.7%.
Net operating income is $220,280. At a 6.5% cap rate, value is $220,280 divided by 0.065, or about $3.39 million. Then subtract deferred maintenance dollar for dollar. A quote for two roof sections and a gate operator totals $63,000, so the adjusted value is about $3.33 million.
The unit mix adjustment is easier to judge after reading the Self Storage Unit Mix Strategy guide. A facility with a high share of climate-controlled units may justify a different cap rate than one dominated by drive-up spaces.
Choosing the cap rate
Cap rate selection decides the result more than any other single input. A half-point difference in cap rate can change the outcome by roughly 8% to 10%. Check that the cap rate comes from a published source or a broker's closed transaction list.
Typical ranges run 5.5% to 6.5% for newer climate-controlled assets in primary markets, 6.5% to 7.5% in secondary markets, and 7.5% to 9% for older drive-up facilities in tertiary markets.
The challenge is that many listed facilities are priced from aspirational cap rates. A buyer who uses the seller's asking cap rate imports the seller's optimism into the valuation.
How to check each step came out right
| Step | Pass condition | Common failure |
|---|---|---|
| Revenue rebuild | Reconciled to bank deposits within 2% | Prepaid or waived fees counted as current rent |
| Expense rebuild | Expense ratio near the 39.7% rebuilt in the worked example | Missing property tax or insurance accrual |
| Occupancy trend | Matches move-in/move-out log within 1 point over 24 months | Vacant units counted as occupied |
| Cap rate source | Within the Marcus & Millichap range for the market tier | Using asking-price cap rates from listings |
Walk the property with the NFPA codes and standards list in hand. A visible gap in fire-door hardware, exit signs or sprinkler coverage is a deferred cost that cuts net income. Review the NFPA codes and standards list before you sign the access agreement.
Depreciation and property tax accruals affect the expense load. The Tax deductions for American self-storage owners piece explains the IRS angle.
Deferred maintenance is sized from written bids, not rules of thumb. A roof quote depends on square footage, roof type and local labor rates. In the worked example the seller's fire-safety and roof backlog came to $63,000.
- Rent roll reconciles to deposits within 2%.
- Expense ratio within 2 points of the 39.7% rebuilt in the worked example.
- Vacancy trend matches the move-in/out log within 1 point.
- Cap rate falls within the published self-storage range for the tier.
If the cap rate fails the check, stop and ask for at least two closed comparables with unit mix and occupancy history. Without that, the cap rate is a guess.
Fixing a failed check
Common failure: the rent roll does not reconcile. Rebuild the roll from signed leases and bank statements, not from the management software export. When the expense load looks light, request vendor invoices and tax bills. If the physical walk uncovers deferred fire-safety work, ask the seller for a recent inspection report and adjust net income for the required spend.
If the financing assumption changes, compare the buyer's cost of capital against SBA loans and USDA grants before accepting the seller's cap rate. A wrong financing input is not a valuation error, but it will change the purchase decision.
When to stop and hand it to a professional
Stop when the reconstructed net operating income differs from the seller's stated net operating income by more than 10 percent after your best adjustments. Also stop when leases contain percentage rent, tenant-owned structures or environmental flags. At that point hand the valuation to a licensed self-storage appraiser or a broker who can access closed sale comps.
