Gregoire Piedmont Oakland, CA The Gregoire Piedmont project had much more workable space than Grégoire Berkeley, allowing for larger Dining and Kitchen areas. We actually created two Kitchens, an open one at the front and a catering Kitchen at the back, which enables parallel food preparation for special events. The tiled walls and wood counter evoke the original Gregoire restaurant in this new space. The building that houses Grégoire Piedmont was originally designed by Julia Morgan and is a designated historic landmark. A Historic Design Review was required to add the new rear access door that made it possible to separate service deliveries from the customer entrance.