DocomomoJoin
  • Explore Modern
    • Explore the register
    • Designers
    • Styles of the Modern Era
    • Resources
  • Latest News
  • Events
    • Upcoming events
    • Modernism in America Awards
    • National Symposium
    • Tour Day
  • Support
    • Donate
    • Membership
    • Theodore Prudon Fund
    • Why become a member
    • Members & Supporters
  • Engage
    • About
    • Regional chapters
    • Start a chapter
    • Submit a site you love
    • Get involved
  • Search
  • Explore Modern
  • Register

115, Geotronics Labs Building

The Geotronic Labs Building
Restored
  • Mid-Century Modern
  • Identity of Building/Site
  • History of Building/Site

115, Geotronics Labs Building

Credit

Craig Blackmon, FAIA

Site overview

Constructed in 1962 for Geotronic Labs, Inc., a geosciences company founded by Darwin Renner (1920-2009). Prior to founding Geotronic Labs, Mr. Renner was the first engineer for GSI, a predecessor to Texas Instruments. Among other accomplishments, Mr. Renner reportedly designed the first Magnetic Anomaly Detector, a device used during WWII to locate enemy submarines. The building was designed by the noted Dallas architectural firm of Prinz and Brooks who, among many other awards, received an AIA National Merit Award for their 1954 Oak Cliff Savings and Loan Building. Geotronic Labs was the sole occupant of the building until 2003 (approximately), when Darwin Renner retired (he passed away in 2009 at the age of 98). 115 sat vacant for the next eleven years until 2014, when it was acquired and renovated by the architecture firm DSGN Associates for its own offices.

Awards

Design

Citation of Merit

Commercial

2018

The jury awards a Citation of Merit for the restoration of the 115, Geotronics Labs Building in Dallas, Texas. Designed by the noted architectural firm of Prinz and Brooks in 1962 for a geosciences company, Geotronic Labs, Inc. was the sole occupant of the building until 2003 and it then sat vacant for the next eleven years until 2014, when it was acquired and renovated by the architectural firm DSGN Associates for its own offices.

“It is important to call attention to a project that takes a typical, small company office building and revitalizes it as an example to others who may embark upon similar projects.”

 

“This is a well-executed restoration and a good model for the treatment of other modest mid-century buildings like this around the country.”

- Lizabeth Cohen and Meredith Bzdak
Restoration Team

DSGN Associates (Architecture)

Constructive – Rick Fontenot

Location

115 W. Greenbriar Lane
Dallas, TX, 75208

Case Study House No. 21

Lorem ipsum dolor

Credit:

Craig Blackmon, FAIA

Designer(s)

Other designers

Prinz and Brooks

Commission

1961

Completion

1962

About
  • Docomomo US
  • US Board of Directors
  • Partner Organizations
  • Terms of Use
  • Site Credits
  • Contact
Membership
  • Membership Overview
  • Why you should become a member
  • Join
  • Members & Supporters

© Copyright 2025 Docomomo US

Donate

Donations keep vital architecture alive and help save threatened sites around the country. Docomomo US relies on your donations to raise awareness of modern design and advocate for threatened sites. Donate today ›