In 1863, the defensive walls of the town were demolished (their remains are visible in the underground car park on the Boulevard) and an expansion of the town began in an attempt to move on from its previous military function. Jose Goicoa and Ramon Cortazar were appointed to oversee the work. They modelled the new city according to an orthogonal shape in a neoclassical Parisian style, and Goicoa designed several elegant buildings, such as the Miramar Palace and La Concha Promenade. The city was chosen by the Spanish monarchy as a summer retreat following the French example of nearby Biarritz, and Spanish nobility and the diplomatic corps opened residences in the town. As the "wave baths" at La Concha were in conflict with nearby shipbuilding activity, the shipyards relocated to Pasaia, a nearby bay that had formerly been part of San Sebastián.