Shopping Walnut Creek NYX Cosmetics Closes in Broadway Plaza in Walnut Creek October 3, 2019 4:30 pm Broadway Plaza, Walnut Creek Thanks to a reader for sending word that NYX Cosmetics, which opened a few years ago in Broadway Plaza in downtown Walnut Creek, has closed. I wonder whether this is due to the location or competition from Sephora? Broadway PlazaFeatured Previous Post Cucina Ramona Coming to Walnut Creek Next Post Blazin Jayz Smoke Shop Closes in Lafayette