The Welaunee Mill was built on the site of the old Phillips Mill, the oldest mill in Porterdale, and is similar to the Porterdale Mill across the Yellow River but on a smaller scale. The architecture is the same, incorporating continuous rows of segmental-arched windows and a four-story tower. Welaunee was the third and last facility built in the modern mill era that defined Porterdale.

Porterdale Historic District, National Register of Historic Places