How is the house that Mother, Grace, Lia, and Sky live in described in the novel, The Water Cure?

The house that Mother and the sisters live in on the island is described as opulent. It containins a ballroom with a piano, a lounge, a large terrace, and many bedrooms. The grounds feature a sauna, a tennis court, and a swimming pool. There is also a garden that leads into the forest, and a greenhouse. From a distance, Lia describes her home as "white and huge as a cake," claiming, "From here it still looks like a house that will save you" (80).