Gustav III's Pavilion, Haga

The pavilion sits with its principal front facing roughly north–south and consists of a two‑storey central block with a low attic and single‑storey wings extending to either side. Each wing presents five tall windows and the roofline is finished with a balustrade. The ground floor contains seven rooms, three of them within the central block, and the present north entrance was probably not the approach used by the king and his guests. Two round medallions with angel motifs flank the main portal.

The principal reception room in the central block, the grand salon, retains late‑eighteenth‑century painted decoration and much of its original visual scheme. The wall paintings present framed mythological scenes that honor the chief classical gods, and earlier varnishes were removed rather than the wall paintings being repainted, preserving the original palette in places. The ballroom originally had a patterned pink‑velvet carpet; the current surface is a painted brown parquet laid during later works. Fragments of wall painting and mouldings in the grand salon and parts of the mirror room were conserved and restored during the twentieth‑century rehabilitation.

The king’s dining room occupies the north wing and was conceived as an imitation of an ancient temple, with painted Corinthian columns (Corinthian columns, columns with ornate leaf capitals) executed to resemble marble and ceiling reliefs celebrating Bacchus. The tall double doors were painted to imitate a metal portal. In the south wing the principal space is the Hall of Mirrors, which has wide windows on three sides that look out over the park and Lake Brunnsviken; decorative mouldings were applied in June 1791 and large mirrors imported from France were set in place about six months later.

Original interior elements such as stucco mouldings, painted schemes and fragments of wall painting were preserved in places and uncovered during mid‑twentieth‑century conservation, supported by recovered eighteenth‑century drawings that guided the reinstatement of earlier finishes. The south façade received glazing after its dressed stone columns were replaced by marble in the mid‑nineteenth century, and heating stoves were fed through openings in the walls from outside. Immediately adjacent to the pavilion stand the group known as the Sultan’s Copper Tents, built in the same campaign to resemble Turkish tents; the central tent suffered a fire in 1953 and its front was rebuilt in the early 1960s, and these tent buildings are protected as part of the national monument ensemble.