1990s

During 1990, storied regional division Sibley's became Pittsburgh, Pennsylvania-based Kaufmann's.^[12][13][14] In 1995, York, Pennsylvania-based department store chain The Bon-Ton acquired the AM&A's chain, converting all branches to The Bon-Ton. Later that year, on December 14, 17-year-old Cynthia Wiggins of Buffalo was struck by a dump truck while trying to get to her first day of work in the mall's food court from a NFTA Metro bus stop on Walden Avenue. The incident sparked allegations from Buffalo's African-American community that Pyramid did not want people from Buffalo's predominantly minority East Side to have easy access to the mall. In settling a wrongful death claim against Walden Galleria and NFTA Metro and to prevent a boycott of the mall, the bus stop was soon moved to a point inside the mall, where it remains today.^{[15][16][17][18][19]}

Walden Galleria Concourse

In 1996, sporting apparel retailer Finish Line opened one of its largest stores.^[20]

Montgomery Ward, which acquired the Lechmere chain in 1994, closed the Lechmere stores nationwide in 1998, as part of a corporate restructuring.^[21] After its closure, Lechmere converted to JCPenney Home and a DSW Shoe Warehouse.^[22][23] In 1999, Kaufmann's also opened a home store within the mall.^[24]

2000s

As the new millennium arrived, so did several exciting developments. A 12,000-square-foot (1,100-square-meter) Pottery Barn and Upstate NY's first Apple Store which would occupy 7,200 square feet (670 square meters) in front of the Bon Ton and Forever 21, a junior clothing store, who opened an 8,500-square-foot (790-square-meter) store on the mall's first floor. Also joining the mall was Abercrombie & Fitch and Hollister, the latter of which was the first location in Western New York.^[25][26] In 2001, a brand-new Galyan's Trading Company store was added to the mall.

By 2002, General Cinemas had sold the mall's theater complex to AMC Theatres.^{[27][28][29][30]} In 2004, the Galyan's location was rebranded to Dick's Sporting Goods following the latter's acquisition of the former. In 2006, The Bon-Ton closed its store at the mall. In September 2006, Kaufmann's was rebranded to Macy's after Macy's merged with the parent company of Kaufmann's.^[31]

Dick's Sporting Goods at Walden Galleria, formerly a Galyan's sporting goods store.

2010s

A new decade brought many changes to the now 21-year-old shopping center.^[33] In 2011, Anthropologie, a trendy women's clothing and accessory store joined the mall. A wave of other stores opened that year as well including Fossil, which opened its second area location in a 4,000-square-foot (370-square-meter) space on the first floor, Free People, a Philadelphia-based retailer which opened its first Upstate New York location in a 2,000-square-foot (190-square-meter) space on the first floor, and White House/Black Market whose 3,000-square-foot (280-square-meter) store is its second area location. Gordon Biersch, a brew pub opened in the restaurant outparcel attached to the parking garage.^[34]

In 2013, several aesthetic upgrades were made throughout the mall. New Italian marble floors were installed. Lighting and seating updates were made as well. The main entrances were updated to reflect the 2007 expansion.

In November 2014, the mall was involved in a controversy regarding stores being fined for deciding not to open on Thanksgiving Day.^[35] The mall owners threatened to fine stores $200 an hour if they remain closed on the holiday.^[36]

Around this time World of Beer opened which buoyed off of the craft beer boom happening in the Buffalo area.^[37] About a month later in September, Dave and Buster's relocated to the center in a 30,000-square-foot (2,800-square-meter) space next to the Cheesecake Factory.^[38]

In April 2018, Spanish retailer Zara opened a two-story 30,309-square-foot (2,816-square-meter) space next to H&M and Gap.^[39] In June, Macy's opened a 14,456-square-foot (1,343-square-meter) furniture store in the location that also formerly hosted the same concept under its predecessor, Kaufmann's.

In late 2019, Macy's announced that their location was among the first to receive millions of dollars in cosmetic upgrades.^[40] Regal Cinemas also announced upgrades which saw it bring 4-DX technology that immerses people in movies with moving seats, wind, rain, lights and even smells.^[41]

2020s

On August 27, 2020, it was announced that department store retailer Lord & Taylor would close its traditional brick and mortar format as a direct result of the COVID-19 pandemic.^[42] Early plans envision the 99,534-square-foot (9,247-square-meter) store reconstructed into a modern space known as York Factory, a co-working sub-brand offering soft amenities such as a program delivering lunch straight to your office, bike rentals, a physical and mental wellness studio, salon services, and weekly events.^[43][44]

In 2021, Walden Galleria was listed among the top 20 most visited shopping centers in America attracting over 23 million visitors from the United States and Canada.^[3]