Excellence in Architecture, Rooted in Connection. Jeff and Nathan Jennings founded Jplus Architects, Inc. in 2005 to establish a Northern California presence in the field of architecture. Since then, we have evolved our team into a dynamic national presence, with talent strategically positioned throughout the United States and Costa Rica. At Jplus Architects, we believe that while our business is designing and transforming buildings, our true foundation is people. Over the past two decades, we have built a reputation across 38 states for delivering superior commercial work—from fitness centers and veterinary clinics to churches and complex corporate spaces. Why Partner with Jplus? Seamless Communication: Expect a clear, transparent pathway through every phase of your project, from initial permits to final design. Proven Trust: Our commitment to exceeding expectations has allowed us to retain clients, subcontractors, and employees for the long term. National Reach, Personal Touch: We combine deep industry expertise and a distributed, agile team with an unwavering focus on relationship-building.