Brookfield Properties also operates an adjacent strip mall, Boise Towne Plaza, which is anchored by Dave & Buster's, Nordstrom Rack, Old Navy, and Ulta Beauty.

[5][6] The first major proposal came in 1973, when Karcher Mall developer Harry Daum attempted to purchase land, owned by Larry and Peg Ott, near the intersection of Cole and Franklin Roads in Boise.

[7] The Otts responded with a lawsuit to stop Daum from attempting the building a shopping mall on their property.

[7] In 1976, the Otts agreed not to protest developer Larry Leasure's efforts to get the shopping center site annexed and zoned for commercial use.

[6] During the same year, an urban renewal project in downtown Boise was planned to include a large shopping mall with Zions Cooperative Mercantile Institution (ZCMI) as an anchor store.

In 1982, Salt Lake City developer John Price proposed another shopping mall near the intersection of Interstate 84 and Cloverdale Road.

[11] Department store chains J. C. Penney, Lamonts, Sears, and ZCMI were committed to anchor the new shopping mall.

[11] Price said he might consider dropping the Cloverdale project if Leasure would agree to sell the Westpark site to him when the issues were resolved.

[11] By December 1986, construction began on Boise Towne Square northwest of the intersection of Cole and Franklin Roads, the original site where Harry Daum attempted to build a shopping mall 13 years earlier.

[5] Within the next year, it was announced that Sears, JCPenney, Mervyns and The Bon Marché would be the new mall's anchor stores.

[15] The Bon Marché, however, planned to keep its downtown location for at least a year but eventually stayed until the chain's demise in 2005 when the company's name was converted to Macy's.

[17] After much anticipation, the mall's first anchors, The Bon Marché and Sears, opened their doors on October 9, 1988 at 10 a.m.[18] Kim Clark, advertising and special events coordinator for The Bon Marché, estimated that 10,000 people from the area would visit the store's grand opening.

[2] The mall's grand opening included a ribbon cutting ceremony with then mayor of Boise, Dirk Kempthorne.

[23] The lawsuit was settled in January 1997 and plans for the 344,838 sq ft (32,036 m2) expansion were approved by the Boise Design Review Committee.

[26] In an interview with the Idaho Statesman, the chairman of JP Realty revealed he hopes to eventually add a sixth anchor tenant and parking garages to mall.

[35] In August 2008, long-time anchor Mervyns announced it would close its location in the mall in late early November 2008, as part of the company's Chapter 11 bankruptcy reorganization.

[36] A contractor bidding announcement confirmed Kohl's was planning a store at the Boise Towne Square Mall in the former Mervyns building.

[49] On October 25, 2021, two people were killed and four others, including a Boise Police Department officer, were injured after a shooting occurred in the mall.

[63] On April 23, 2012, it was confirmed that restaurant chain Dave & Buster's would open in the remaining space left in the former Circuit City building.