Boston’s Self Storage Market In 2025: Tight Supply And The Challenges Of Building More

• Boston’s self storage supply is among the lowest in the country, with just 0.7 square feet per capita and no new construction forecast for 2025.
• Rents remain high at around $191 per month, reflecting strong demand and limited space in the city.
• Development patterns across the metro vary sharply, with suburban growth contrasting with urban zoning restrictions and policy limits.

Boston’s self storage market in 2025 reflects the character of the region itself: expensive and constrained by limited space. The city’s tight housing market and prevalence of small-unit living fuel a steady need for off-site storage solutions. Yet new construction is increasingly rare, limited by land scarcity and local zoning and urban planning policies.

In the City of Boston, the supply-demand imbalance is clear in the numbers. The total self storage inventory stands at roughly 643,000 square feet, translating to just 0.7 square feet per capita, one of the lowest ratios in the country.  Nearby cities in the metro area, albeit also severely undersupplied, tell a slightly different story: Worcester and  Providence increased their inventories more substantially over the past decade.

Self storage construction in Boston grinds to a halt

Boston’s most active period for self storage construction came between the mid-1990s and early 2010s, when more than 560,000 rentable square feet , or nearly 90% of all its existing inventory. came online. Much of this growth came from redeveloping underused industrial parcels and converting older warehouse spaces in neighborhoods such as Dorchester, South Boston, and Charlestown, where land was relatively affordable and zoning rules were more flexible. This period coincided with Boston’s population growth and a rise in rental housing, creating a strong market for new facilities.

Since 2015, however, development has slowed dramatically, with no new self storage projects delivered over the past decade and none expected in 2025. This slowdown reflects Boston’s increasingly built-out landscape, where developable land is limited and construction costs remain among the highest in the country.

However, it also stems from a shift in urban planning priorities. Self storage projects are generally confined to industrial zones and undergo detailed public reviews to evaluate their impacts on traffic, design, and neighborhood fit. These requirements, while not outright prohibitive, add complexity and cost to new developments, contributing to the effective stop in new supply despite ongoing demand.

Low supply keeps rents elevated

Demand for storage in Boston remains robust. The city’s mix of older triple-deckers, brownstones and modern high-rises with minimal storage space ensures continued reliance on off-site units. This results in street rates significantly higher than the national average, at $233 per month, and growing, by 5% year-over-year, despite a longstanding trend of lowering self storage prices nationwide.

The broader metro tells a more nuanced story. Worcester, with more land and lower development costs, added over half a million rentable square feet in the last decade, resulting in a per-capita supply more than four times Boston’s. Rents there are lower — about $144 per month in 2025 — but still well above national averages. Providence followed a similar trajectory, adding space rapidly in the past decade and expanding its inventory by over 63% since 2015, before banning new self storage construction citywide in 2023.

Across other Boston’s suburbs, the approach is more measured. Communities like Quincy haven’t banned self storage but rely on special permits and design reviews to control how and where facilities are built. While these areas have more developable land, local boards increasingly insist on better design, traffic management, and landscaping to ensure storage projects integrate with surrounding neighborhoods.

Suburban towns like New Bedford and Nashua, on the other hand, have consistently delivered self storage supply over the past few years and, consequently, enjoy self storage street rates that are closer to the national averages.

Boston metro area’s self storage market will remain undersupplied in the near term, with few major projects in the pipeline. Future growth, particularly in the city of Boston, is likely to focus on adaptive reuse, infill development, and mixed-use designs that integrate storage with other urban functions. Ultimately, Boston’s self storage sector mirrors the broader forces shaping its real estate market: limited space, intense demand, and a planning framework that demands every square foot serve the city well.

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The self storage data in this article comes from Yardi Matrix, StorageCafe’s sister division and a business development and asset management tool for brokers, sponsors, banks and equity sources underwriting investments in the multifamily, office, industrial and self storage sectors.