ISO Commercial is a comprehensive commercial real estate firm serving the greater Austin area.



The team members of ISO Commercial have been key players in the transformation of the city’s central core, combining individual experience from a wide array of professional endeavors – development, tenant representation, landlord representation, multi-family and property management. We are proud to represent clients that embrace the entrepreneurial spirit that weaves the fabric that makes Austin special – from the developers that transform the Austin skyline to the small retailers and restaurateurs that fill the streets of town. With over 60 years of combined real estate experience we look forward to becoming your lifelong partner in all of your real estate endeavors.


Dave van Heuven

Dave van Heuven studied finance/real estate at the University of Texas at Austin for three years. He then changed majors and received a B.A. in the Urban Studies/Urban Planning program and a minor in Finance/Real Estate. He has called Austin home for over 20 years. He has witnessed firsthand the transformation of this wonderful city from a “sleepy college town” to a truly international city within the past two decades.

Dave serves on...


Tim Grondin

Known for providing creative solutions that improve every aspect of a client’s experience, Tim Grondin is a preeminent real estate expert in the greater Austin area. Tim has been a sought after trusted agent since 2007. He specializes in high-end commercial properties in downtown and central Austin, as well as the surrounding neighborhoods.

In a city that has grown exponentially over the past decade, real estate buyers and sellers need...


Karen Kelly

For 17 years, Karen Kelly has been one of Austin’s top real estate agents. Holding an MBA from The McCombs School of Business at The University of Texas at Austin, she pairs sharp business acumen and a passion for art, architecture, and design with a genuine love for helping people find and secure their dream properties. Kelly is widely recognized as an industry expert who maintains in-depth knowledge of the local market – including trends,...

James Wilson VHP 4 x 5 Headshot .png

James Wilson

James specializes in all facets of the real estate business, whether it be navigating the way for first-timers or providing help in the luxury market, he knows and has experienced it all. He is originally from Alabama (War Eagle!) and has called the great state of Texas home since 2013. His background in property management not only brought him to Austin but also led him to his career in Real Estate.

He is a hands-on agent who takes...