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.