Developed in stages since 1999, the Porirua MegaCentre spans over 10 hectares, primarily dedicated to retail use. Notably, the development has improved former roading patterns, enhancing site links and implementing roundabout traffic controls to streamline traffic flow.

The expansive development is bordered by Titahi Bay Road to the west and Wi Neera Drive to the east, while the Polytechnic marks the northern boundary. Just south lies the Porirua Public Library, Museum of Arts and Culture, as well as recreation and aquatic centers, with a Pak N Save supermarket a short distance away along Parumoana Street.

Porirua, located approximately 20 kilometers north of Wellington City, offers convenient access to the Porirua Motorway/State Highway One, serving as a significant feeder city for Wellington. With a well-established indoor shopping center and a thriving bulk retail center, Porirua is swiftly emerging as a prominent retail destination.

Since the inception of the MegaCentre, nearby properties on Parumoana and Norrie Streets have gradually transitioned from light industrial and workshop uses to bulky goods retail establishments.