Fontana is the Inland Empire West's industrial powerhouse. Straddling the I-10 and I-15 interchange — one of the highest-traffic freight corridors in the western United States — Fontana has attracted some of the largest industrial developments ever built in California. This 2026 market report examines current conditions and what to expect through year-end.

Fontana warehouse transactions require a broker who knows every corridor. Our team has represented buyers, sellers, and tenants across millions of SF in Fontana.

View Fontana Market Page →

Market Overview

Fontana's industrial base spans approximately 110 million square feet, with heavy concentration along the I-10 Freeway between Cherry and Citrus Avenues and a growing cluster of mega-distribution centers in the north end near the 210 Freeway. The city's industrial zoning map is among the most expansive in San Bernardino County, allowing for continued new development in areas that would face CEQA or land use barriers elsewhere.

The tenant mix skews toward very large users — Fontana has more buildings over 500,000 SF than any other IE submarket, and several million-SF facilities anchoring the city's I-10 corridor have become landmarks of modern logistics infrastructure. Amazon alone operates three fulfillment and delivery stations in Fontana, with combined square footage exceeding 3 million SF.

Key Market Stats — Q1 2026

  • Total inventory: ~110 million SF
  • Vacancy rate: 5.9%
  • Net absorption: +640K SF (trailing 12 months)
  • Average asking rent: $1.35/SF/month NNN
  • Largest available block: 1.1M SF (speculative, Q4 2025 delivery)

The I-10 Corridor Advantage

Fontana's geographic position is its defining competitive advantage. The convergence of I-10, I-15, and SR-210 within the city limits creates a freight nexus that no other Inland Empire submarket can match. Trucks departing from Fontana can reach the Ports of Los Angeles and Long Beach in under 60 minutes, the Las Vegas distribution hub in under 4 hours, and Phoenix in under 5 — making Fontana the preferred staging point for cross-country and regional distribution strategies.

This logistics advantage is reflected in the building stock. Fontana's newest industrial parks feature 40-foot clear heights, 185-foot truck courts, ESFR sprinkler systems, and on-site trailer storage parks that are required by the sophisticated operations attracted to the corridor. Spec developers have invested heavily in Fontana precisely because these occupiers pay a premium for functionality.

Vacancy & Rents

Vacancy in Fontana stood at 5.9% in Q1 2026, with the majority of available space concentrated in three large-format buildings delivered speculatively in 2024–2025. These assets — ranging from 400,000 to 1.1M SF — represent the bulk of the submarket's statistical availability; the balance of the market (buildings under 200,000 SF) remains notably tighter at under 3% vacancy.

Asking rents for Class A big-box distribution average $1.35–$1.50/SF NNN, reflecting the "size discount" that characterizes large-format industrial nationwide — bigger buildings trade at lower per-SF rents due to the limited pool of tenants who can absorb them. For mid-size and small-bay product, rents range from $1.55–$1.85/SF NNN, and leasing velocity in that size range has remained strong throughout 2025 and into 2026.

Demand Drivers

Investment Outlook

Fontana investment sales activity strengthened in Q1 2026, with cap rates for stabilized Class A product compressing to the 5.0–5.75% range — tighter than comparable Ontario product due to Fontana's perceived supply constraints and I-10 corridor premium. The city's limited developable land west of I-15 is increasingly well-understood by institutional investors, who view existing assets there as functionally irreplaceable.

Value-add plays have attracted private equity interest, particularly assets in the 50,000–150,000 SF range with below-market leases rolling in the next 24 months. With rents having risen 45%+ from 2019 to 2023 before the recent correction, there is still meaningful mark-to-market potential on leases written pre-2021.

Recent Fontana Transactions

  • 14800 Miller Ave — 520,000 SF leased to national 3PL, $1.38/SF NNN
  • 10601 Citrus Ave — 88,000 SF multi-tenant sold, 5.3% cap rate
  • 17200 Valley Blvd — 1.1M SF spec building, marketing for lease Q2 2026

2026 Forecast

The large speculative blocks currently available in Fontana are the key variable to watch. If these lease up — and we expect at least two of them to absorb by year-end given active discussions with 3PL and e-commerce users — Fontana vacancy will drop back toward 4% by Q4 2026. If they linger, 2027 will be needed for full digestion. Either way, the underlying demand case for Fontana's I-10 position is structural, not cyclical.

For tenants, the window to negotiate aggressively on large-format space is now — landlords of big-box buildings are motivated and TI allowances are at multi-year highs. For owners of smaller, fully-leased Fontana properties, now is an excellent time to evaluate disposition as buyers compete for well-tenanted assets in a market with limited new supply of that type.

Our Fontana specialists have completed transactions across every size range and corridor. Get a free broker's opinion of value or consultation on your leasing strategy.

Talk to a Fontana Expert →

Lee & Associates — SoCal Industrial Team

Our brokers specialize exclusively in Southern California industrial real estate. With decades of combined experience in the Inland Empire, LA Basin, and Orange County markets, we provide clients with data-driven guidance on acquisitions, dispositions, and lease negotiations.