Eileen design E. 1027 to be able to blend into its surroundings. The following two sketches demonstrate this idea. The first sketch shows a floor plan of E. 1027 and how the interior and exterior merge into a single entity. This idea of merging the exterior and interior space is further shown in how Eileen incorporated the building into the hillside, as seen in the second sketch. The openness of the house is a representation of the importance of the site. Eileen considered the site as a major factor of her design.