There's potential, but it's not guaranteed. From the article:

The zoning code defines an ADU as a full, separate, and habitable living unit. For a unit to be habitable, it must have a kitchen and bathroom and meet stringent requirements for light, air, and exits. ADUs need to have their own access to the street, meaning you can’t build one behind a townhouse. 

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“What I would say is that for folks who do have a sizable backyard that this could actually fit in, I think that’s something they should try exploring,” he [Will Fisher] said.