Our Leadership Team

Making Dreams Come True
in Austin Real Estate

Being a leader in commercial real estate and land development in Austin, Texas, means turning visions into reality in one of the nation’s most dynamic markets. With the Austin metro area adding over 579,000 residents from 2010 to 2020—a 33% increase—demand for innovative and thoughtfully designed commercial spaces is at an all-time high. Sierra Commercial stands strong in the face of this growth, offering unparalleled expertise in high-quality site selection and development that transforms ideas into thriving business hubs and vibrant communities.

Austin's evolving real estate landscape reveals a dramatic rise in land values, with the median land price increasing by over 80% from 2015 to 2020, underscoring the importance of strategic, well-informed decisions in the development process. Connally McKay and the team at Sierra Commercial excel in guiding clients through these complexities, helping them navigate the market with confidence and achieve their dreams of owning, developing, or managing premier properties.

Our approach is not just about constructing buildings; it’s about creating spaces that reflect the aspirations of the businesses and individuals they serve. Sierra Commercial is dedicated to building dreams—whether it’s crafting a new headquarters, developing a mixed-use space that fosters community, or turning a piece of land into a legacy. This commitment to realizing clients' visions ensures that Sierra Commercial continues to lead in Austin’s competitive real estate market, shaping the city’s future one project at a time.

Sierra Commercial real estate leadership team in downtown Austin
Get to know our team: [left to right] Amber Gunn, Olivo Castillo, Lauren Stevens, Brandon Grunewald, Kayla Paschall, and Taylor Hughes. Not pictured: Connally McKay.

Meet the People Behind the Business

Connally McKay, Principal

A lifelong Texan, Connally has dedicated his entire professional journey to the realms of real estate, title management, and land development. Hailing from Victoria, TX, he graduated from Baylor in 2005. Following this, he transitioned to the Austin area where he shares life with his beloved wife, Sarah, and their two sons, Thomas and Leighton. Before establishing Sierra Commercial alongside his dad, Robert, Connally spent seven years at Asterra Properties. During this time, his focus encompassed site selection, infill redevelopment, land development, retail leasing, and sales. His clientele ranged from large national corporations to local small and medium-sized enterprises. Known for his dedicated service and unwavering ownership of his work, he has more recently taken the helm of development teams with a concentration on residential land projects.

Outside of his business pursuits, Connally's rich rugby background includes three USA Men's Club Rugby National Championships (2018, 2019, 2023) with the Austin Rugby Club. Further, he held the position of Head Coach for the University of Texas Men's Rugby Club from 2018 to 2022. His coaching includes youth rugby too, drawing profound life lessons from the sport that builds relationships, helping others to grow and live their best lives.

Amber Gunn, Broker

Originally from Houston, TX, Amber relocated to Austin in 2002. With a Bachelors in Accounting, she embarked on her real estate journey in the title insurance sector, guiding agents in accountability and time management. Acquiring her real estate license in 2006 and broker license in 2008, she initially ventured into residential real estate before uncovering her passion for construction and land development. As a Dave Ramsey-trained financial coach, Amber boasts a keen affinity for financial analysis and spreadsheets. Beyond her professional feats, her greatest achievements are her children—Cullen, a 27-year-old construction manager with DR Horton in College Station, and Cassidy, a 25-year-old assistant principal at Second Baptist School in Cypress. Outsider of her dynamic career and family life, Amber's heart resonates with her furry companions, Gracie and Daisy. She finds solace in music, dancing, and embracing the great outdoors. 

Taylor Hughes, Agent

Taylor, originally from Fort Worth, Texas, graduated from Texas State University and later settled in Austin. There, he met his wife, Chelsea, and their canine companion, Finn. Taylor started his career in residential real estate, where he gained valuable expertise. Now, he's expanding his horizons into commercial real estate with Sierra, marking a significant step forward in his career journey.

Olivo Castillo, Agent

With an extensive 18-year tenure in the Central Texas real estate sector, Olivo presently holds the role of managing partner at Sharp Appraisers, LLC, situated in Austin, TX. Throughout his career, he has actively contributed to the industry, having served on the board of directors for the local chapters of the National Association of Hispanic Real Estate Professionals and the membership committee for the Hispanic Chamber of Commerce, as well as currently serving on the Board of Directors for the Association of Texas Appraisers. His appraisal background enriches his commercial real estate role, offering a distinct perspective and  multifaceted approach to better serve clients.

Kayla Paschall, Agent

With nine years in Austin and four years in real estate, Kayla possesses an intimate understanding of the local real estate market. At the start of her career, Kayla honed her skills as a marketing manager, sharpening her talents in effective communication and design. Her path took a transformative turn when she discovered her true passion for real estate. With knowledge of the vibrancy and diversity of Austin and its surrounding areas, Kayla is well-equipped to guide individuals in their real estate endeavors. She enjoys helping customers discover their ideal space or home to propel them forward in their life or business journey. Kayla prioritizes clear communication and serves as a reliable source of information throughout the process.

Beyond her professional accomplishments, she finds fulfillment in various personal pursuits, such as practicing yoga, bowling in her weekly league, exploring different countries, fostering cats, and attending as many concerts as possible.

Lauren Stevens, Agent

Lauren has lived in the Austin area for twelve years, four of those while working in real estate. Before making the move to become a real estate agent, she worked in sales for a custom home builder. Her family has generations of real estate experts and home builders, so she’s been surrounded by all things land and construction her whole life. Her passion for real estate runs deep! She spends her free time exploring our family-friendly city with her husband and young son.

Brandon Grunewald, Vice President

Bio coming soon.