ABOUT

  • Castle Hill Investments has been the leading Central Texas duplex, fourplex, and single family brokerage firm in terms of volume since it’s founding in 2004.
  • Every year since 2005, broker/owner Robert Grunnah has received numerous awards for Top Sales in the community including #1 out of over 10,000 agents in 2006 and in the top 5 for five years running. With over 1600 transactions, the company is approaching $350,000,000 in sales volume.
  • In addition to being a prominent voice for local and national newspapers and magazines about investments, Robert also owns over 150 units in his own portfolio, giving him a unique perspective on the 1-4 unit investment property market. Only a Realtor that has experience buying and selling their own investment properties can best understand the needs of other buyers and sellers.
  • Jeff Lowther is recognized as the preeminent buyer representative for investment property in the community. As a team, Robert and Jeff offer vast experience and an unparalleled perspective on the market to property owners, investors, and owner-occupant duplex buyers.

Our Team

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Broker/Owner

A native Texan, Robert began his career in the Internet and Software industries. Realizing that the best way to build wealth, by far, was investing in real estate, he purchased his first investment property in 1998. Recognizing a lack of investment-specific expertise in the industry, he founded Castle Hill Investments in 2004 to share the lessons he had learned with other investors. Within two years, he was ranked Top Producer (#1 out of 10,000+ agents) in the Austin area with over $60M in sales. Less than seven years later, he owns one of the largest portfolios of 2-4 unit properties in...

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Director of Client Services

Born and raised in the Lone Star state and the youngest of five children, Adrienne brings a motivated, friendly and intelligent focus to the Castle Hill team. Following graduation from St. Michael's Academy in Westlake and then attending Baylor University for a short while, she found herself being pulled back home to the Capital City. Adrienne soon after began her career with Robert at Castle Hill Investments in the spring of 2009. Following several years of living, breathing and even dreaming of investment real estate sales, Adrienne, now an experienced Realtor, carries the role of...

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Director of Buyer Services

Jeff has been actively involved in the Austin real estate community for almost 25 years. He obtained his real estate agent’s license in 1992 and his Broker’s license in 2005. He purchased his first property (a duplex) in 1996 in central Austin and decided to renovate it and live in one unit and rent out the other unit. He instantly became focused on the investment property niche and the many benefits of owning real estate. He has since purchased many other properties for his own portfolio and is passionate about assisting his clients in identifying and acquiring the best investment...

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Operations Coordinator

Tasha is 100% Austinite! Her love for the Austin community is greatly inspired by not only its continued growth but also in seeing the local culture thrive. As the daughter of an independent contractor, she developed a true interest and passion in real estate. From walking properties with her dad, to hands on experience transforming something old into something spectacular and new. Tasha brings with her over a decade of professional business experience, and a belief in working hard, smart, and honestly.

Tasha holds an BA in English and Creative writing from the University of Texas at...

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Administrative Assistant

Raised in Shelby County, deep in the heart of Texas' East Pineywoods, Kevin fell in love with the power and community of theatre. This inspired him to pursue degrees in Telecommunications & Performing Arts, as well a BA in Theatre and Dance from the University of Texas at Austin. His past work experience ranges from retail to administration. He even spent a few summers at the Canterbury Summer Stock Theatre in Indiana, two of which he served as a Company Manager. Now, Kevin assists Castle Hill Investments in its everyday operations while gaining invaluable knowledge about the local...

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Director of Security

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(512) 444-2299

Austin's #1 Duplex & Fourplex Broker Since 2004