Restaurants Walnut Creek Oyama Sushi Opening Soon in Walnut Creek November 5, 2013 11:30 am 1519 N. Main St, Walnut Creek Back in July I noted that Lafayette-based Oyama Sushi was coming to Walnut Creek and it looks like the opening is not far away as the inside looks almost finished judging from the below photo. Previous Post Alina B Leaving Broadway Plaza by January Next Post Lafayette Historical Society's Speaker Series - Gettysburg Address on Nov 17th