XX Century

1900 Santa Rosa was transferred once again to Alberto Garcia Fajardo. In this period a census recorded 319 dwellers (including women and children).

1910 In this year the second and final stage of the actual infrastructure, with exception of the new machine room (which construction was completed in 1916), was finished during the Alberto Garcia Fajardo management. By this year the population of Santa Rosa had increased to 364 people and the village had 94 houses.

1926 From this year until the Agrarian Reform (1937), the Hacienda was managed by the Santa Rosa Cooperative.

1970 In these times Santa Rosa was owned by Enrique Vales Montes.

1997 The Hacienda, after being restored for almost two years by a team of architects and restoration specialists, was opened as a hotel. The most note-worthy aspect of this specific hotel-hacienda project, however, may be the social issues of hiring and training of local workers, first in the construction work and later on in hotel positions.