Jonathan "Jon" Guile started his building career over 40 years ago with his family in California. Jon became a master trim carpenter. In the late 90's Jon moved to the Tulsa, OK area where he met Nora Gordon. Jon and Nora became partners in the building business and Gada Construction was born. Together for over 25 years, Jon and Nora have constructed many custom and speculative homes, commercial projects, and thoughtful remodels.

In November of 2025 Nora Gordon retired from the building business. Jon along with his wife, Michelle created Jonathan Alan Designs to carry on the legacy of Gada Construction.

Jonathan Alan Designs, LLC offers a comprehensive range of construction and design services, including custom home construction tailored to individual client visions, expert residential remodels with meticulous attention to detail, and commercial construction and remodeling solutions that enhance business environments. The in-house interior design team provide integrated, sophisticated design services, while the expert plan design team ensures that every project is guided strategically from concept through completion, delivering quality and professionalism at every stage.