Wittman Estes and NODE use prefab elements to create rentable backyard cottage in Seattle

American firms Wittman Estes and NODE have created a prefabricated accessory dwelling unit, or ADU, that is wrapped in charred wood and runs entirely on solar power.
The building was created for a homeowner in west Seattle who wanted a one-bedroom studio in her backyard, which she could rent out or list on Airbnb."The client wanted a second unit to create an additional rental income that would be self-sustaining and affordable, generating economic and environmental productivity," said local firm