The Instituto de Astronomía of the Universidad Nacional Autónoma de México (UNAM) along with Instituto Nacional de Astrofísica, Óptica y Electrónica, the University of Arizona and the Smithsonian Astrophysical Observatory are developing the Telescopio San Pedro Mártir (TSPM) project, a 6.5m diameter optical telescope. M3 Engineering and Technology Corp. (M3) is the design and construction administration firm responsible for all site infrastructure, enclosure and support facilities. The Telescopio San Pedro Mártir project (TSPM) will be located within the San Pedro Mártir National Park in Baja California, Mexico at 2,830 m. above sea level, approximately 65 km. east of the Pacific Ocean, 55km west of the Sea of Cortes (Gulf of California) and 180km south of the United States and México border. The aim of this paper is to provide an update of SPIE paper 9906-84 to identify the changes associated with final design for the site infrastructure, enclosure and support facilities to date and share the design and construction approach.