With the construction of the DE 1 freeway in the 1990s, DE 7 was shifted to a portion of the freeway near the Christiana Mall. The route was also extended south to an intersection with US 13 and DE 72 as a result of the relocation of US 13 onto a portion of the freeway.
In the 1990s, when the DE 1 freeway was constructed, DE 7 was shifted to a section near Christiana Mall. The route also extended southward to an intersection with US 13 and DE 72 due to the relocation of US 13 onto a portion of the freeway.