Group 53

Who we are

HMT Engineering & Surveying has been one of Central Texas’s leading engineering and surveying firms since 1977. Based in New Braunfels and San Antonio, our team offers a range of services addressing all aspects of residential, commercial, and municipal development. Our website is:


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Personal Information

We will collect and process data you provide to us directly. This includes a voluntarily completed survey request form, contact us form, or other form of communication and inquiry.

We will store and use personal information provided to follow up with you about your questions and any additional needs identified. We may also use it to screen for potential fraud. We do not request billing or payment information through our website so that will not be stored in this system. For customer privacy and protection, we request that through a specific process and software for consumer security.

Embedded content from other websites

Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.

These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracking your interaction with the embedded content if you have an account and are logged in to that website.

Data Rights

You may request to receive an exported file of the personal data we hold about you, including any data you have provided to us. You can also request that we erase any personal data we hold about you. This does not include any data we are obliged to keep for administrative, legal, or security purposes.


We may update this privacy policy as needed to reflect changes for operational, legal, or regulatory reasons. The last revision date will be indicated by the date at the top of this page. Any changes are effective immediately upon publication to our site.

Contact Us

For more information about our privacy practices or additional questions regarding data protection and your rights, please contact us at

Thor Thornhill, RPLS


Mr. Thornhill has a wide range of experience with land development. His career experience includes real estate appraisal, land development, property management, mergers and acquisitions of Class A office, big box industrial, large multi-family, Class A hotels, retail, and built-to-suites.


Stephen Hanz, P.E.


Mr. Hanz has enjoyed a career in civil engineering which has spanned continents in more than two decades. His project management experience has covered commercial and residential development, streets and drainage designs, as well as public works and wastewater.