French Castle on Private Island
Listed for Sale

Known as Château de Costaérès, this architectural treasure stands atop its island’s highest point, surrounded by crystal-clear waters. Built in 1895 by the visionary inventor Bruno Abdank-Abakanowicz, the castle has a rich artistic legacy, having hosted renowned Polish creatives, including Nobel laureate Henryk Sienkiewicz. The writer found inspiration here for his celebrated novel, Quo Vadis.

Though privately owned, this fairytale castle can be admired from the surrounding coastline. Take a hike along the Sentier des Douaniers, one of France’s most stunning coastal trails, or book a boat tour for a closer view of the château's dramatic stone façade and pink granite cliffs rising from turquoise waters.

Brittany’s Pink Granite Coast isn’t just a feast for the eyes—it's a paradise for food lovers. Nearby, you’ll find Ploumanac’h, a picturesque fishing village, and local bistros serving fresh oysters, buttery galettes, and kouign-amann. Looking for something more refined? Brittany boasts several Michelin-starred restaurants, where chefs turn the region’s fresh produce and seafood into culinary art.

Château de Costaérès may not be open to visitors, but the charm of Brittany’s rugged coastline, rich history, and vibrant cuisine makes it a must-visit destination. Plan your escape to the Pink Granite Coast and let the magic of Brittany unfold.