Title: Cannabis Sativa (Hemp), a sustainable alternative construction material for the municipality of San Gil, Colombia. Abstract: This research seeks to analyze the possibilities that hemp represents as a construction material and as a promoter of the circular economy in the municipality of San Gil, Colombia. For this, work will be done hand by hand with the Fuenterra crop in order to identify the characteristics of the fiber and the possibilities that materials and construction systems derived from the hemp plant may have.