PORT OF SPAIN, Trinidad — After languishing for more than five years on the international real estate market, Boissiere House, a much-photographed dwelling also known as the Gingerbread House, has finally been bought and restored, and its owners have received a heritage award for the work done on the project.

The house was built in 1904 on the edge of the green space known as Queen’s Park Savannah by C.E.H. Boissière, a prominent businessman, and was long the home of mixed-race descendants of French merchants and plantation owners. In 2013 it was purchased by the Sammy family, wealthy Indo-Trinidadians who made their fortune in the island’s booming construction industry.

The family patriarch, Junior Elgin Sammy, bought the house as a gift to himself for his 61st birthday. The Sammys took ownership in November 2013, and the renovation work began immediately, said Shivonne Sammy Maharaj, Mr. Sammy’s daughter.

“We basically bought a dilapidated, broken shell and aimed to restore its magnificence,” Ms. Sammy Maharaj said in an email. “Our main challenge in the restoration would be to not break anything, not change anything and of course to not offend anyone with our decisions.” Though the Sammys declined to say how much they paid for the house, three years ago the asking price was 20 million Trinidadian dollars, or about $3.15 million.