How Comparable Sales Reveal What Your Facility Is Really Worth

You can run all the financial models you want, but at the end of the day, your facility is worth what a buyer will actually pay—and buyers anchor their thinking to what similar properties have sold for. That's the essence of comparable sales analysis.

Understanding how comps work, and where their limits are, helps you approach valuation conversations with realistic expectations.

What a "Comp" Actually Is

A comp—short for comparable sale—is a recently sold property that's similar enough to yours to be meaningful as a reference point. In self-storage, brokers and buyers look for sales involving similar:

• Asset size (total rentable square footage or unit count)
• Market type (urban, suburban, rural; primary vs. secondary market)
• Asset quality (Class A, B, or C; construction vintage)
• Recency (ideally within the last 12–24 months, closer if the market has moved)
• Operational profile (stabilized occupancy, similar management structure)

No two facilities are perfectly alike, so comp analysis is inherently interpretive. A $15 million Class A facility in suburban Dallas and a $2 million older facility in rural Kansas might both be called "self-storage comps," but they're telling very different stories.

The Metrics Buyers Extract from Comps

When buyers pull comparable sales, they're typically extracting two key metrics:

Price per square foot — the sale price divided by net rentable area. This is a quick screening metric that lets buyers compare across different-sized assets. National average sale prices have been running around $159 per square foot as of mid-2025, down from the post-pandemic peak of roughly $174 per square foot in early 2023—a useful macro reference point, though your local market may differ significantly.

Cap rate at sale — if income data is available (it often is for marketed deals), this tells buyers what yield the market required for that type of asset at that point in time. For reference, Class A assets are currently trading in the 5.0–5.5% cap range, while Class B assets generally fall between 5.5–6.5%.

Together, these give buyers a sense of where market pricing sits. If six recent comps cluster around a 5.8–6.2% cap rate for your asset class, that's a meaningful anchor.

The Limits of Comp Analysis

Comps are useful but imperfect, for a few reasons worth understanding:

They're backward-looking. A comp from 18 months ago may not reflect current interest rate conditions or capital flows. Markets move, and stale comps can mislead in both directions.

Income data isn't always public. Many transactions close without full disclosure of NOI, making it difficult to back into the cap rate. Price-per-square-foot data is more consistently available.

Off-market sales are underrepresented. A meaningful portion of storage transactions happen quietly, without a public marketing process. These don't always show up in databases, which means the full picture of market activity is rarely visible.

Local factors matter enormously. A facility in a submarket with strong rent growth and limited new supply commands a premium over one facing competition—even if the raw numbers look similar.

Professional advisors, including those at Oasis Investment Sales, maintain active databases of transaction activity precisely because the publicly available picture is incomplete. The value of that private market knowledge shouldn't be underestimated when you're trying to understand what your property is actually worth today.

How Comps Connect to Your Valuation

Comparable sales don't replace the income approach—they inform it. If your facility's income analysis implies a 5.5% cap rate value but recent comps show similar assets trading at 6.2%, that's a gap worth understanding before you go to market.

For more on how the income approach works, see What Is a Cap Rate and Why It Determines Your Facility's Value.

Ultimately, comps give you a reality check. They tell you what the market has actually paid—not what a financial model says something should be worth.

Have questions about comparable sales data for your market? We'd love to help you think through it.

Email us: info@thestoragetrend.com