How big was the northampton castle?

Northampton Castle, built in the 11th century, was a significant medieval fortress that covered a large area, roughly 2.5 acres. It featured a rectangular stone keep, extensive defensive walls, and various buildings, serving as a royal residence and administrative center. Over time, much of the castle was demolished, but its historical significance remains notable in Northampton's heritage. Today, only remnants of the structure can be seen, primarily in the form of earthworks and ruins.