Hollywood Hills, California – $11.2 million
In 2013, Katy bought a house on Mulholland Dr and then proceeded to buy the house next to it. The 2,563 square foot super modern house has three bedrooms and endless amounts of sunlight drenching the house. The Spanish-style house has three bedrooms, three bathrooms, and 3,884 square feet. Both houses come with a guest house, a pool, and tons of outdoor seating areas.