On the northern fringes of Marrakesh, overlooked by the Atlas Mountains, luxury hotels and vast mansions sit within a natural 54-square-mile palm grove called La Palmeraie.

Notable residents of this rarefied Moroccan enclave include the Emir of Qatar, who paid a reported $117.7 million for his vacation home. Marella Agnelli, widow of Fiat chairman Gianni Agnelli, and Dominique Strauss-Kahn, the former director of the International Monetary Fund, also have homes here. Fashion magnate Patrick Guerrand-Hermès spends part of the year in Morocco, and founded the Royal Polo Club de la Palmeraie.

Not all residents are billionaires. Potential buyers might manage to pick up a small villa in La Palmeraie for $1 million, said Alex Peto, partner at Kensington Luxury Properties, Christie’s International Real Estate’s affiliate in Morocco. But it would take a budget of $5.88 million to pick up a six-bedroom, 13,000- to 15,000-square-foot home. It would likely come with around 2.5 acres of land, with a pool, hammam (a traditional steam bath) and staff quarters.

One can, of course, spend far, far more.

Mr. Peto is currently listing a $65.83 million, 59,632-square-foot behemoth of a house, with eight bedrooms and 16 bathrooms, and a design based on the Alhambra Palace, the fabulous 13th-century palace and fort in Spain.