Union Square I & II in North Central San Antonio trades to SynerMark Properties

AUSTIN, June 23, 2026 – JLL Capital Markets announced today that it has completed the sale of Union Square I & II, a 323,949-square-foot office campus in North Central San Antonio, Texas.

JLL marketed the portfolio on behalf of the seller, a joint venture led by Worth & Associates. A SynerMark Properties partnership purchased the asset, with preferred equity provided by Tryperion Holdings.

Union Square’s two-building campus consists of Building I, which was originally built in 1986 and offers 192,763 square feet across 10 floors, and Building II, which was constructed in 2006 and provides 131,186 square feet across six floors. The property is 95% leased to a diverse roster of tenants, including law firms, banks and financial institutions, government agencies, engineering and consulting firms, insurance companies, healthcare providers and real estate services companies with 3.1 years of weighted average lease term remaining.

Located at 10101 Reunion Place and 10001 Reunion Place, Union Square is off US-281 just north of Loop 410, immediately adjacent to the San Antonio International Airport. Union Square offers quick access to the city's major business hubs while being nestled among San Antonio's most prestigious neighborhoods, including Castle Hills, Alamo Heights, Terrell Hills, Hill Country Village, Hollywood Park and Shavano Park. The property is within two miles of North Central San Antonio's most popular shopping, dining and entertainment centers, including Park North and North Star Mall.

JLL's Investment Sales and Advisory team representing the seller was led by Managing Director Drew Fuller, Senior Managing Director Chuck King and Vice President Patrick McCord.

"Union Square represents a rare acquisition opportunity in San Antonio, one of America's highest growth markets, at a significant discount to replacement cost," said McCord. "The property's irreplaceable location along US-281, strong in-place cash flow and substantial value-add opportunity make this deal truly unique in the current market environment."

Fuller added, “The Worth team’s meticulous attention to detail and hands-on management and leasing approach has distinguished Union Square as a superior office asset in the competitive North Central submarket. We’re proud to be part of this marquee transaction and look forward to watching SynerMark’s investment continue to succeed for years to come.”

JLL’s Capital Markets group is a full-service global provider of capital solutions for real estate investors and occupiers. The group’s in-depth local market and global investor knowledge delivers the best-in-class solutions for clients, including investment sales and advisory, debt advisory, M&A and corporate finance, loan sales, equity & fund placement, net lease, derivative advisory and energy & infrastructure advisory. The group has more than 3,000 Capital Markets specialists worldwide with offices in nearly 50 countries.

For more news, videos and research resources, please visit JLL’s newsroom. 

JLL (NYSE:JLL) is a leading global commercial real estate services and investment management company with annual revenue of $26.1 billion, operations in over 80 countries and a global workforce of more than 113,000 as of March 31, 2026. For over 200 years, clients have trusted JLL, a Fortune 500^® company, to help them confidently buy, build, occupy, manage and invest across a variety of industries and property types, including office, industrial, hotel, multi-family, retail and data center properties. Driven by our purpose to shape the future of real estate for a better world, we help our clients, people and communities SEE A BRIGHTER WAY. Powered by rich global datasets and leading technology capabilities, we provide coordinated, end-to-end delivery of real estate services for a broad range of global clients who represent a wide variety of industries. Through LaSalle Investment Management, we invest for clients on a global basis in both private assets and publicly traded real estate securities. For further information, visit jll.com.

Worth & Associates is celebrating 40 years in business as one of South Texas’ oldest and most successful commercial real estate leasing, development, investment, and brokerage firms. San Antonio-born and -bred, locally owned and family operated, the company has a deep well of market knowledge that comes only with decades of experience. To learn more, please visit: www.worthsa.com.

SynerMark Properties, Inc. is a full-service real estate investment and services firm based in Austin, Texas with clients and partners across the country. The firm owns a portfolio of office, industrial, multifamily, and self-storage properties. To learn more, please visit:  www.synermarkprop.com.

Tryperion Holdings is a Beverly Hills, California-based commercial real estate investment firm. Tryperion invests in equity and credit opportunities within the U.S. middle-market real estate sector. To learn more, please visit: www.tryperion.com.