Most often, ADUs are secondary spaces that supplement a primary residence: in-law cottages, rental properties, or studios. But Wilson’s ADU functions as her primary home. The bungalow just wasn’t her style—it had a “ton of little rooms,” she says. “I wanted to live somewhere that utilized space better.” So she rented the house to her adult son, and turned to Waechter for help creating her dream home. Her requirements were simple: a modern, airy space with two bedrooms and two bathrooms.