Upland, CA

CBRE Arranges $9 Million Sale of Stewart Plaza in Upland, California

October 23, 2025

White office building with red tile roof, palm trees, and mountain backdrop on a sunny day.

Media Contact

CBRE has arranged the $9 million sale of Stewart Plaza, a 46,527-square-foot office property located at 440 North Mountain Avenue in Upland, Calif. A partnership between a local investor and a medical group acquired the property.

CBRE’s Sammy Cemo, Austin Reuland, Anthony DeLorenzo and Bryan Johnson represented the seller, Stewart Plaza Owner LLC, in the transaction.

"This sale presented a unique opportunity to acquire a well-maintained, income-producing office building with an owner-user occupancy component in a prime medical location," said Cemo. "The recent capital improvements, combined with the property's accessibility to major Southern California markets, San Antonino Regional Hospital and a dense population base, make it an attractive investment in a strong and growing submarket."

The three-story Class A office building has undergone over $1 million in renovations in the past two years, including a roof replacement, elevator modernization, HVAC replacements, lobby upgrades, new lobby and exterior furniture, and a new digital directory.

Strategically located near Interstate 10 (I-10), I-60 and I-210, Stewart Plaza offers easy accessibility throughout the Los Angeles Metro area.

About CBRE Group, Inc.
CBRE Group, Inc. (NYSE:CBRE), a Fortune 500 and S&P 500 company headquartered in Dallas, is the world’s largest commercial real estate services and investment firm (based on 2024 revenue). The company has more than 140,000 employees (including Turner & Townsend employees) serving clients in more than 100 countries. CBRE serves clients through four business segments: Advisory (leasing, sales, debt origination, mortgage servicing, valuations); Building Operations & Experience (facilities management, property management, flex space & experience, digital infrastructure services); Project Management (program management, project management, cost consulting); Real Estate Investments (investment management, development). Please visit our website at www.cbre.com.