RRTL Architects are recognized nationally for their outstanding design of religious facilities and sacred spaces. The firm is the recipient of numerous national and regional AIA Design Awards for their church design. The experience includes the design of new facilities and renovation of existing spaces. The firms early design work on sacred spaces, beginning in 1961, has formed many principles that lead the industry in the design of religious spaces. Recent work includes the renovation of San Fernando Cathedral in San Antonio, Texas. San Fernando is the oldest Cathedral in the United States dating back to 1739.