To a large extent, the decorations of the main entrance hall, the Chamber of Bacchus and the Bath-Chamber all dating from Lubomirski's time, have survived. Stanislaus Augustus first took an interest in the old Bath-House in 1772. Initially, some of the interiors were restored and turned into living quarters. That coincided with a fashionable notion of fleeing palatial mansions to secludes rural abodes. In 1777, the first considerable change in the Bath-House's appearance occurred. Most notably a send storey was added to the building with a sleeping suite for King Stanislaus Augustus. Downstairs a dining-room was created which already had a classicist appearance. Fashionable roofed Chinese galleries with little bridges were added at both sides, with the western one leading to what soon would be the Royal Promenade. In 1784, a more extensive reconstruction of the Bath-House was launched according to a design by Dominik Merlini. Two new annexes were built on the southern side, joined together by a row of four columns. The classicist façade was covered with sandstone slabs. Four years later two new segments slightly set back from the south were added on both sides. On the northern side, they formed part of the new, monumental northern façade which featured a columned portico crowned by a triangular tympanum. The entire elevation was crowned with a stone attic embellished with sculptures by André-Jean Lebrun.