The bigger the better: mega warehouses lead industrial recovery

Dated: 1st June 2026

Large format industrial leasing has roared back, and with it a narrative that big-box warehouses are the market’s bright spot. That story is true but incomplete. Not all big-box buildings are performing equally, and the differences between size segments are stark. The mega segment is tightening fast, with falling vacancy, stronger lease economics and growing rent momentum. Meanwhile,tenants continue to hold the upper hand in the mid-size segment.

  • Vacancy is falling at the top, rising at the bottom Mega segment vacancy stood at 7.3% in Q1 2026, down 100 basis points year over year and the tightest of the three tiers, while the mid-size segment tells the opposite story at 10.9% and still trending higher, reflecting a supply overhang with little sign of near-term resolution.
  • Evolving supply chains fueling demand for the largest buildings Leasing in the mega segment represented 30.6% of all big-box activity over the past six months, a significant jump from 21.5% in the prior six-month period, with the mega segment’s share jumping nearly 10 percentage points in just six months.
  • The barriers to mega development are high and getting higher In 2023, three mid-size buildings were delivered for every mega facility; by 2025, that ratio had widened to eight to one, and the number of mega options across the top ten markets declined 14.0% over the past two years, even as mid-size availabilities grew by 15.0%.
  • Lease economics tilt toward landlords as size increases Landlords are trading lower starting rents for stronger long-term economics on mega leases, capturing an 8.2% effective rent premium and securing average lease terms of more than eight years.
  • Expiring leases point to accelerating rent growth in the mega segment Half of all expiring mega leases predate the industrial rent surge, leaving the widest mark-to-market gap, with market rents sitting 42.9% above in-place rents in the mega segment versus 26.9% in the mid-size segment.

Additional
Reports Added Monthly

Get Our Industrial Real Estate Report Summaries

The REALIST Prism Team reads thousands of pages of reports and analysis so you don’t have to.

Newsletter

This field is for validation purposes and should be left unchanged.