The initial triangular fort of 1607 was ultimately expanded toward the east. Evidence of the addition has been found in the form of two palisade sections branching off of the triangular fort's eastern palisade. One of these additions begins at the southeastern corner of the fort and heads east for 60 feet before terminating at the western end of the factory. The other addition branches off of the eastern palisade at the northern bulwark and heads east for at least 40 feet. This addition was likely what John Smith referred to when he wrote the fort was reduced to a "five-square form" in 1608. Future archaeology will continue to explore this eastern addition to James Fort and potentially reveal more of the additions and help to date when these additions took place.