Shopping Walnut Creek Un Deux Trois Girls Clothing Store Opens in Downtown Walnut Creek June 15, 2015 8:30 am 1537 N. Main St, Walnut Creek The girls and tween clothing store Un Deux Trois, that we learned would be coming to downtown Walnut Creek in May, has opened. Check out their website here. Previous Post Coalpex Stamp Show at Civic Park Community Center in Walnut Creek this Weekend Next Post Graze Opens for Lunch in Moraga