Over the course of the last fifteen years, Maria Barrientos has served as the primary development consultant for the St. Mark’s Episcopal Church. From 1990-1998 while a partner at Lorig Associates, Ms. Barrientos acted as the project manager for the renovation of the historic Cathedral building. The project included an in-depth strategic plan, and a phased construction process in order to time expenditures with fund raising. During the first phase, the building received an upgrade of its entire seismic, structural, electric, plumbing and HVAC infrastructure. In the next phase, the Cathedral received a new roof, including structural and seismic upgrades in the nave, and the installation of a new copper roof system. The third phase included a new west wall, a new rose window, stone cladding and the addition of a chapel.

In 2005-2006, barrientos was again hired to conduct a feasibility analysis and master plan of the long-range needs of the entire St. Mark’s campus and for all of its programs.