Hôtel de Blossac (Blossac Mansion), Rennes

The Blossac Mansion is a notable emblem of 18th-century elegance. Erected in 1728, just eight years after the devastating fire of 1720, this private mansion was commissioned by Louis Gabriel de La Bourdonnaye, the Count of Blossac, and is believed to be based on designs by the famed architect Jacques Gabriel, with construction overseen by Jean‑François Huguet. Its grand scale and classical architecture make it unique in Brittany-a lavish residence that reflected the power of its original owner.

The mansion is composed of two main wings flanking a central courtyard, with a luxuriously appointed garden side to the north-complete with an elegant facade and stately perron-and a more reserved courtyard side to the south, where the celebrated ceremonial staircase is located. This ornate staircase is notable for its marble columns, wrought‑iron balustrades, and a statue of Themis recessed into the wall-features rare in western France and evocative of high Parisian townhouses.

Historically, the Blossac Mansion served as the official residence of the commander‑in‑chief of the province of Brittany between the mid‑18th century and the Revolution-a period marked by opulence and courtly ceremonies. After the Revolution, the building was subdivided into apartments (notably, author Paul Féval was born there), before transitioning to public ownership. Classified as a Historic Monument in 1947, it underwent extensive restorations over three decades.

Today, the mansion houses the Regional Directorate of Cultural Affairs and the Territorial Service of Architecture and Heritage of Ille‑et‑Vilaine, but remains open to visitors during office hours. You can explore the serene courtyard, the beautifully kept garden, and ascend the staircase to view the restored interiors and documentation library.