The Magnificent Seven Houses are a group mansions located along one side of Queen's Park Savannah in northern Port of Spain, Trinidad and Tobago. They are located on Maraval Road in the St Clair neighborhood of Port of Spain, and were built on land that was previously used as a government stock farm. Built between 1902 and 1910, the buildings are listed as heritage sites at the National Trust of Trinidad and Tobago. Stollmeyer's Castle was the first building constructed in the neighborhood, and took several years to complete, as was typical with the Magnificent Seven Houses.
The structures are considered important because of the unique array of edifices—including French Colonial, Scottish baronial, Indian Empire, and Moorish Mediterranean styles—often blended with Caribbean architecture. Many have interesting elements, like the chiming clock and lighted clock tower of Queen's Royal College. Stollmeyer's Castle is said to be modeled after a wing of Balmoral Castle. Hayes Court, a French Colonial style building, has contemporary Scottish cast iron elements and traditional Demerara windows. White Hall is made of natural white limestone of Barbados. Some of the structures were made of imported materials, like Italian marble and Scottish cast iron elements.
Most were originally built as residences and kept within families for decades. Archbishop's House was built as, and remains, the official residence of the Archbishop of Port of Spain. The Anglican Bishop to Trinidad resided in Hayes Court. Queen's Royal College was built as a secondary school for boys.
Whitehall and Stollmeyer's Castle falls under the purview of the Office of the Prime Minister. White Hall was used as the Office of the Prime Minister from 1963 to 2009. The two buildings had some restoration work so that they could be used by foreign dignitaries during their visits to Port of Spain. Both buildings were commandeered by the United States Armed Forces during World War II. Most of the Magnificent Seven Houses retain the aesthetic of the original design. Of the buildings, Milles Fleur is the one that is notably in disrepair, due to extended periods where it was not occupied or maintained.