San Leucio is a concrete example of the way the Bourbons built new areas in order to experiment industrial plants based on industrial autonomy. The policy of reformation, thus, is not only the consequence of the Law Code, but it is also visible in the town-planning and the architectural aspect of the borough. It was not inspired by monarchical absolutism, rather, by the principle of equality. The town is organized as follows: at the centre there is the Piazza della Seta (Silk Square) and the 1700 portal which leads to the silk factory – royal building and the suburbs where the workers live. The town’s style is rational and functional. The decorations are extremely simple. The whole building is based on square and rectangular geometrical plants, and not on the curvilinear property of the surrounding natural environment where it was erected. As a matter of fact, the buildings meet the difference on land levels of the hills and the gardens are terraced. The dream of an ideal town with a theatre, a hospital, a cathedral and green spaces ended at the end of 1700 and the coming of the French Revolution. The borough is left and, above all, the artisans and the masters who produce silk are still at work.