The 2026 self-storage development pipeline has a new leading story, and it's not ground-up construction. According to StorageCafe's latest adaptive reuse analysis, approximately 3.8 million square feet of self-storage space is currently under construction inside buildings that previously served other purposes, accounting for 7.2% of all upcoming development in the U.S. Total converted storage stock nationwide has now reached 179 million square feet, with more than 108 million of that coming online in just the last ten years.
In 32 U.S. cities, every square foot of incoming self-storage supply is coming from converted buildings. Not some of it. All of it. Those 32 markets collectively represent about 2.3 million square feet, or roughly 60% of all adaptive reuse space currently under development.
This is not a fringe trend. It's a structural response to a development environment that has made ground-up construction increasingly difficult to underwrite.
Why Are Developers Converting Buildings Instead of Building New?
The short version: it's 37% to 50% cheaper per square foot.
Institutional-grade ground-up self-storage construction in 2026 runs $90 to $120 per square foot for a multi-story, climate-controlled facility, not including land costs. In dense coastal markets like Los Angeles and New York, that number climbs higher. Adaptive reuse, by contrast, starts with an existing structure, existing utilities, and in many cases an existing zoning classification that already permits commercial uses, reducing both cost and timeline.
The 25% tariff on imported steel that took effect in 2025 has added pressure to new-build economics. Developers who locked in designs and material procurement early have some insulation, but anyone starting the permitting and design process now is facing a cost environment meaningfully higher than even two years ago.
There's a mosaic of variables that play into the growth of adaptive reuse in the self-storage sector. One is the distress in the office sector, but it's also about the fact that the cost to build a new self-storage facility is more than the cost to adapt.
- Doug Ressler, Business Intelligence Manager, Yardi Matrix
The zoning calculus is also different. In dense urban markets, self-storage is often unwelcome as a primary use in commercial or mixed-use zones. Municipalities want active ground-floor uses, foot traffic, and retail vitality. A conversion project that wraps storage behind a retail or office facade, or integrates it into a mixed-use structure with residential or co-working components, can clear planning hurdles that a standalone self-storage facility would not.
Which Building Types Are Getting Converted?
Industrial properties still lead. According to StorageCafe's analysis, 41% of converted self-storage inventory came from former industrial or logistics buildings. The floor loads, ceiling heights, and loading dock infrastructure translate well. Office properties account for 34% of conversions, a share that's been climbing as commercial vacancy rates in many metros remain elevated post-pandemic.
The current pipeline shows a shift toward retail conversions. Big-box retail, former grocery anchors, and closed bank branches are increasingly viable targets. The floor plates are large, the parking is already built, and many of these properties sit in exactly the kind of high-traffic suburban corridors where self-storage demand is strongest.
A few recent examples illustrate how varied the opportunity set has become:
In Brick, New Jersey, a developer is converting a former Wells Fargo bank branch into a three-story, 99,862-square-foot self-storage facility. In St. Louis, a developer is repurposing a vacant 50,000-square-foot office building into a $3 million mixed-use project that combines self-storage with five residential lofts and three commercial office spaces. In Pearl City, Oahu, Poverni Sheikh Group is developing a six-story mixed-use building on a 1.6-acre site that will include 115,400 square feet of self-storage and 2,700 square feet of ground-floor retail, scheduled to open in early 2027.
Where Is Adaptive Reuse Activity Most Concentrated?
Irving, Texas leads all U.S. markets for active adaptive reuse construction, with nearly 233,000 square feet underway. More than 80% of Irving's entire under-construction storage pipeline is conversion-based. The city sits in the Dallas-Fort Worth metro, where the broader market has seen 1.4 million square feet of real estate repurposed into self-storage, representing 11% of Dallas's total existing storage inventory.
Los Angeles is the second-largest conversion market, with more than 226,000 square feet of adaptive reuse projects actively underway. That figure represents 60% of all storage space currently under construction in the city. In the past decade, LA has seen 1.4 million square feet of real estate converted to self-storage, placing it eighth in total converted inventory nationwide.
Chicago holds the top position in total converted self-storage square footage among all U.S. cities, followed by New York City's Brooklyn and Manhattan boroughs. The East Coast and Midwest are home to the highest concentration of conversion activity by number of cities, though Sunbelt markets are adding volume fast.
What Does the Mixed-Use Model Actually Look Like?
The simplest version is a retail or office facade on a self-storage building in an urban location. The active ground-floor use satisfies the municipality; the storage fills the upper floors. More complex versions integrate actual operating uses: retail tenants with long-term leases, co-working space, or in the St. Louis example above, residential lofts.
Developers and architects working in dense markets are also designing for what city planners call "human scale": concealed loading areas, interior truck courts, glazed facades, and street-level architectural detail that signals the building belongs in its block context. The days of corrugated metal roll-up doors facing a commercial arterial are incompatible with urban infill approvals in most major metros.
The Pearl City project in Hawaii captures the model at its most vertical. A six-story structure, 115,400 square feet of net rentable storage, 2,700 square feet of retail, on 1.6 acres. In a land-constrained market like Oahu, the math only works if you build up and if you demonstrate a community-serving ground-floor component. Poverni Sheikh Group got the entitlements and broke ground.
What the Numbers Are Actually Saying
- 3.8 million square feet of self-storage space is currently under construction through adaptive reuse, 7.2% of the total U.S. development pipeline
- Total converted self-storage stock in the U.S. has reached 179 million square feet; more than 108 million square feet of that came online in the last decade
- Adaptive reuse cuts development costs 37% to 50% per square foot compared to ground-up construction
- 41% of converted facilities came from former industrial buildings; 34% from former office properties; retail conversions are the fastest-growing category
- Irving, Texas leads all U.S. markets with 233,000 square feet of adaptive reuse under construction (80%+ of its total pipeline)
- Los Angeles has 226,000 square feet of conversion projects underway, representing 60% of its under-construction storage supply
- In 32 U.S. cities, 100% of all incoming self-storage supply is coming from converted buildings
The Pipeline Is Telling You Something About Ground-Up Economics
When 32 American cities see all of their new self-storage supply coming from converted buildings, that's not a coincidence. It's a signal that ground-up development no longer pencils in those markets. Tariffs on steel, elevated land costs, cautious lenders, and municipalities hostile to standalone storage all point in the same direction.
Developers who can identify the right conversion candidates, execute a mixed-use or adaptive reuse design that clears planning, and move through permits faster than a ground-up entitlement cycle are finding deals that still work. The operators who understand that landscape, and who can manage a mixed-use asset with retail or residential components, have a meaningful edge over those still underwriting traditional standalone facilities. The pipeline says the conversion play is real. The economics say it's here for a while.
Sources
- Out With the Old, In With Self Storage: U.S. Cities Convert Industrial, Retail Spaces Into Storage Facilities, StorageCafe
- LA Among Nation's Top Markets for Self-Storage Adaptive Reuse: Report, The Real Deal Los Angeles
- The Country's Largest Urban Hot Spots Embrace Adaptive Reuse in Self-Storage, NAIOP
- Adaptive Reuse Reshapes Self-Storage Sector as Retail Conversions Surge, Scotsman Guide
- Self-Storage Development and Zoning Activity: March 2026, Inside Self-Storage
- The Trends Impacting Self-Storage Design in 2026, Inside Self-Storage
- Self Storage Market Outlook, February 2026, Yardi Matrix