An original architectural floor plan by Walter Gropius, documenting a mid-century building project in Philadelphia with precise technical detail.

This architectural document presents the ground floor plan for a building addition and alteration project in Philadelphia, dated between 1944 and 1946. The drawing bears the signature of Walter Gropius, the founder of the Bauhaus and a central figure in the development of International Style architecture.

The plan displays the characteristic precision and clarity associated with Gropius's approach to design. It maps out the structural grid, column placements, and circulation paths with a focus on functional efficiency. The diagonal orientation of the exterior wall suggests a response to the specific geometry of the site, demonstrating the analytical rigour applied to spatial organisation during this period of his career.

As a technical drawing, the work provides insight into the mid-century architectural process. The annotations and scale indicators, such as the 1/8 inch to 1 foot ratio, reflect the standard practices of the era. The composition is sparse, prioritising the legibility of structural elements over decorative detail. This print offers a view into the methodical planning required for large-scale urban additions, capturing the intersection of engineering and design. The document serves as a record of Gropius's professional practice in the United States, where he continued to influence architectural education and theory after his departure from Germany. The clean lines and systematic layout are typical of the modernist aesthetic, which sought to strip away non-essential elements to reveal the underlying logic of a building's form.