On any given day, 20mission looks and feels kind of like a dormitory — under minor construction, for now. Energetic tenants scurry from unit to unit, shuffling past screwdrivers and sanders on the unfinished hardwood floors. The smell of new wood, paint and primer fills the hallways. There are 40 residents and each gets his or her own standard-size bedroom for $1,400 per month. Residents range between their mid 20s and mid 40s. They share five bathrooms, four showers, a washer and dryer and a massive office space downstairs. Rent pricing is that of a typical studio in San Francisco.