This paper examines sustainable site design approaches with emphasis on preventing certain natural hazards. It explores the role of natural forms and land modeling as mediators concerned with the identity of site and place with a concern that design should be ecological and sustainable, using resources efficiently. This paper proposes that natural disasters such as landslides and erosion might be prevented by sustainable site design. Preparedness should start at the site selection phase with proper site analysis. After gaining an understanding of the causative mechanisms of these hazards, a set of site design principles for reliably avoiding the causes of the disasters is established.