Like many cities in the United States, Portland, Oregon has a housing crisis.
With thousands of people sleeping on the streets or in temporary housing each night, the city decided to get creative in solving the problem: it asked homeowners if they would be willing to house homeless families in their back gardens.
The Multnomah Idea Lab, a government agency tasked with finding innovative solutions in the county’s human services sector, came up with a pilot programme to house homeless families in tiny homes in the back gardens of willing homeowners.
When they opened the call to participants, more than 1,000 homeowners expressed interest, and now the first four families have moved into their new homes.
If you liked this story, sign up for the weekly bbc.com features newsletter called "If You Only Read 6 Things This Week". A handpicked selection of stories from BBC Future, Culture, Capital and Travel, delivered to your inbox every Friday.