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Heritage classified

Key figures

Origin and history

Kerenneur's mansion, located in Plourin in Finistère, is an emblematic building of the 15th and 16th centuries, reflecting the Breton defensive architecture of this period. Built around 1400 in a post-war context of the Succession of Brittany, it combines fortified elements (mâchicoulis, square tower) with seigneurial living spaces. The oldest part (1400-1450) includes a round tower and a defensive gate, while the most recent main wing (1540-1550) is evidence of an increased search for comfort, marked by open windows and vaulted rooms.

Initiated by Hamon de Kergadiou, the mansion extends over a once complete estate with chapel, mills and dovecote, now disappeared. The disturbed paving courtyard and the preserved buildings (large room with coats of arms, kitchen with bread oven, spiral staircase) illustrate Breton seigneurial life. The second phase of construction coincides with the marriage of Marie de Kergadiou and François de Kersauson, whose weapons still adorn the chimney.

Listed at the Historical Monuments in 1977 for its facades, roofs and staircases, the mansion was preserved thanks to a conversion to a tourist destination in the 21st century. It now houses reception rooms (up to 150 people), guest rooms and organizes cultural events, thus ensuring its sustainability. The current owners open it to the public during Heritage Days and for summer concerts.

Architecturally, the mansion follows the Breton model: main building flanked by a stair tower, closed courtyard and missing commons (metalworks, water mill). The defensive elements (wall of bellows, mâchicoulis) recall the tensions of the time, while the interior spaces (high panelling room, octagonal chamber) reveal an increasing concern for refinement in the Renaissance. The Saint-Antoine chapel, today destroyed, completed this seigneurial ensemble.

Since the 2000s, the mansion combines heritage preservation and economic activity, with spaces dedicated to weddings, seminars and overnight stays. This approach makes it possible to finance the maintenance of protected elements (portal, staircase to screw) while valuing local history. The site remains a rare testimony of the small fortified manors of the North Finister, having escaped major transformations.

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