If you own a self-storage facility and are thinking about selling, or you are buying your first one, you need to understand how buyers will value it. The core formula is simple. The adjustments are where value is won or lost.
The basic formula
Value = Net Operating Income (NOI) ÷ Capitalization Rate
NOI is revenue minus operating expenses (before debt service and depreciation). The cap rate reflects market risk and return expectations for similar facilities.
How buyers normalize NOI
Revenue
- Use trailing collections, not potential rent.
- Separate rental income from ancillary income (insurance/protection plans, locks and boxes, truck rental, fees).
- Remove one-time items.
Expenses
Buyers will add expenses an owner-operator may not show:
- Management fee, even if the owner manages it personally.
- Payroll at market rates.
- Property taxes reassessed to the expected sale price.
- Insurance at current market premiums.
- Repairs and maintenance, marketing and software.
- Capital reserves.
A facility that shows a high NOI because the owner works for free will be re-underwritten.
Cap rates
Cap rates for self-storage vary with facility size, quality, climate-controlled share, market, occupancy stability and the interest-rate environment. Larger, newer, climate-controlled facilities in strong suburban markets command lower cap rates (higher prices) than small, older drive-up facilities in tertiary markets.
Where upside comes from
Sophisticated buyers will pay for upside they can capture, but not all of it.
- Street-rate gap: existing tenants paying far below current street rates.
- Occupancy: lease-up of vacant units.
- Ancillary income: tenant protection plans and retail sales.
- Expense control: better software, online rentals and automation.
- Expansion: additional land or building conversions.
How sellers can increase value before selling
- Implement disciplined existing-customer rate increases well before marketing the facility.
- Clean up delinquency and document lien procedures.
- Move to professional management software with clean exports.
- Address deferred maintenance that will show in inspections.
- Assemble clear data: unit mix, occupancy history, rate history and expenses.
Frequently asked questions
What cap rate do self-storage facilities sell for?
It varies widely by size, quality, market and interest rates. Smaller older facilities in tertiary markets typically trade at higher cap rates than newer facilities in strong suburbs.
Why do buyers add a management fee if I manage it myself?
Because a new owner will pay for management. Buyers normalize expenses to market levels.
How can I increase my facility’s value before selling?
Implement disciplined rate increases, clean up delinquency, improve software data and address deferred maintenance.
How we help
We value, market and sell self-storage facilities for owners and help buyers separate real upside from wishful thinking. Learn about our self-storage practice or read our buyer due diligence checklist.
Have a deal or question in mind?
Talk it through with Apurva. A 20-minute call is usually enough to know your next step.
