Northwest Austin is home to popular, affluent residential neighborhoods such as Steiner Ranch, River Place, Long Canyon, and Grandview Hills. The area has an exclusive countryside feel while being close to major roads, shopping and dining. This area boosts a highly educated workforce which has led to continued growth in retail and commercial real estate development. The southern border of Northwest Austin is the long-standing Arboretum shopping center and offices in a park-like setting. The area expands west and north to Highway 620 and includes new commercial developments such as the Preserve at 620, once a Super Walmart store and now a 223,000 square-foot Class A creative office park. New commercial construction and redevelopments are in the works, including a 1.25 million-square-foot office park planned at a former 3M manufacturing plant.