Self-storage real estate investment trusts (REITs) own, operate, and manage mini-warehouse storage facilities. These properties enable businesses and individuals to securely store items in individual storage units.
Here's a closer look at the self-storage REIT business. We will explore its advantages and risks and some leading self-storage REITs that investors should consider.
Understanding self-storage REITs
Understanding self-storage REITs
Self-storage properties are small warehouses with multiple units that range in size. Owners lease storage units in these buildings to businesses and individuals who need space to store inventory or household items. Some self-storage operators will also rent parking spaces to store boats, RVs, and other vehicles.
Most self-storage units rent on a month-to-month basis. That differs from the lease structure of many other REITs, which typically own properties that lease space for a year or more. On the one hand, the shorter-term lease structure enables self-storage REITs to raise rents more frequently to market rates. On the other hand, they might have to reduce rents during a down market.
In addition to generating rental income, self-storage REITs have several other potential revenue sources, depending on their business model. These can include tenant reinsurance income, late fees, management fees, and the sale of moving materials (boxes, packaging, tape, etc.).
Advantages
Advantages of investing in self-storage REITs
Self-storage REITs benefit from steadily rising demand for storage space. The sector's demand drivers include relocation, decluttering, disasters, changing life circumstances, and business purposes. These factors tend to keep occupancy levels high while steadily pushing rental rates higher.
Self-storage properties are also one of the lowest-cost real estate investments since they're typically inexpensive to build and operate. As a result, they tend to have relatively low occupancy break-even rates. These factors enable self-storage investments to generate high margins and investment returns.
Self-storage REITs have historically been among the best-performing investments in the REIT sector, significantly outperforming other real estate investments over the past decade, including leading REIT ETF Vanguard Real Estate ETF (VNQ 0.17%).
Risks
Risks of investing in self-storage REITs
While self-storage REITs have been excellent long-term investments, they're not without risk. There are two notable sector-specific risks:
- Oversupply risk: Because self-storage facilities are cheap to build and operate, there are low barriers to entry. Developers can quickly build new capacity, which can increase competition for customers in a market, weighing on occupancy levels and rental rates at existing facilities.
- Economic risk: Due to the short-term nature of self-storage leases, the sector has more exposure to an economic downturn. If the economy takes a hit, fewer people will move. Businesses might also cut back expenses, impacting occupancy and rental rates.
In addition to those sector-specific risks, self-storage REITs face two intertwined potential headwinds common to the entire REIT sector: interest rate risk and financing risk.
As interest rates rise, borrowing money becomes more expensive. If a REIT has lots of floating rate debt or near-term maturities, rising rates can increase its interest expenses. Higher interest rates can also affect a REIT's ability to finance acquisitions and development projects.
Meanwhile, rising interest rates tend to weigh on REIT stock prices. That's because it makes lower-risk alternatives such as bonds more attractive investments since their income yields rise. As a result, REIT stock prices tend to fall, pushing up their dividend yields to compensate investors for their higher risk levels.
3 best self-storage REITs
3 best self-storage REITs to buy right now
There were four large publicly traded self-storage REITs entering 2025. While all focus on owning, operating, and managing self-storage facilities, three of them stand out for their slightly differentiated business models.
| Self-Storage REIT | Ticker Symbol | Market Cap | Description |
|---|---|---|---|
| Public Storage | (NYSE:PSA) | $52.6 billion | The world's largest owner, operator, and developer of self-storage facilities. |
| Extra Space Storage | (NYSE:EXR) | $32.0 billion | The largest self-storage REIT by market share in the U.S. and the leader in third-party management. |
| National Storage Affiliates | (NYSE:NSA) | $2.9 billion | A leading self-storage operator with a unique Participating Regional Operators (PROs) business model. |
Here's a closer look at what makes these self-storage REITs different from their competitors.
1. Public Storage
Public Storage is the largest self-storage REIT by market cap. It began 2025 with more than 3,300 owned or operated properties and more than 241 million square feet of net rentable space across 40 states. In addition, it also owns a 35% interest in European self-storage REIT Shurgard Self Storage, which owns 315 self-storage properties in seven Western European countries with 17 million net rentable square feet.
Its property development platform differentiates Public Storage from its self-storage REIT peers. It's the only REIT that develops new properties; the rest primarily expand by acquisition. The company's development strategy has enabled Public Storage to earn higher investment returns compared to acquisitions over the years.
Public Storage will also invest in redevelopment projects and make acquisitions. Since 2019, the REIT has spent $12 billion on developments, redevelopment, and acquisitions that have grown its portfolio by 36%.
2. Extra Space Storage
Extra Space Storage is the largest player in the U.S. self-storage sector after buying rival Life Storage in a $15 billion deal in 2023. It entered 2025 with almost 3,900 properties in 42 states with more than 296 million square feet of rentable space. It controlled 14.1% of the U.S. self-storage market, which was the largest share in the sector (bigger than Public Storage's 10.5% share).
Extra Space Storage's third-party management platform sets it apart from other self-storage REITs. While most REIT rivals also manage properties owned by third parties, Extra Space Storage was an early leader in this business model. It currently manages more properties than any of its competitors (1,461 in the third quarter of 2024, compared to 816 for CubeSmart (CUBE 0.74%) and 280 for Public Storage).
This strategy has several benefits. It generates steady management fee income and requires little up-front investment. Meanwhile, it provides the company with a steady stream of acquisition opportunities. Extra Space Storage can purchase a property it knows very well when the owner sells, thereby reducing risk.
3. National Storage Affiliates
National Storage Affiliates entered 2025 with more than 1,070 self-storage properties across 40 states and Puerto Rico with about 70 million rentable square feet. It focuses on owning properties across the country's top 100 metro areas.
What's unique about National Storage Affiliates is that it doesn't consolidate its properties under one national brand. Instead, it owns, operates, and manages strong regional brands.
The company was undergoing a consolidation strategy in 2024 to transition from a dozen brands to seven market-focused brands. This strategy will strengthen its core brands and reduce costs, which should enhance its returns. It can then leverage those stronger brands to expand in their markets by acquiring smaller rivals and transitioning them to the more-focused regional brand.
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Bottom line
Self-storage REITs have historically been great investments
Self-storage REITs benefit from a combination of lower costs, high demand, and short-term lease structures, which has enabled the sector to steadily increase income. That has helped the industry generate above-average total returns over the years. The ability to earn high returns makes self-storage REITs attractive options that real estate investors should closely consider.
