The AK360 Campus Development and Expansion Project — led by OMA with Cooper Robertson — is the third time the museum has grown in the course of its history, each time at intervals of approximately 60 years - in 1905 with its first permanent home and in 1962 with its last expansion.

The new expansion will add 30,000 square feet of exhibition space, including adding state-of-the-art space for presenting special exhibitions. The new building will also incorporate several visitor amenities and is envisioned to have a wraparound promenade that visually connects the interior of the building with the surrounding Frederick Law Olmsted Delaware Park.