With housing issues in the city and region, Chicago is testing out several ways property owners can convert parts of their property into residences:

Coach houses – stand-alone housing structures sometimes built above garages and sometimes referred to as “granny flats” – were once prevalent in Chicago, but changes in zoning and parking requirements caused their construction to be banned in 1957. In December, the Chicago City Council re-legalized coach houses and apartment units in basements and attics, passing the Affordable Dwelling Units Ordinance. The ordinance took effect May 1, and the city is now accepting applications.

The five pilot areas cover much of the city, with zones in the north, northwest, west, south, and southeast areas of Chicago. After a three-year evaluation period in these pilot zones, the city will decide whether to make the ordinance citywide policy…

For properties planning to construct two or more additional dwelling units, every other unit must be affordable housing.

This opens up new opportunities both for property owners and those searching for housing. For landlords, they can gain more income, house family members, or create new space on their property that people could live in later. For those needing housing, these are likely smaller spaces that could provide dwellings in residential neighborhoods and possibly help keep such housing more affordable with more units available.

But, how many of these units will be created? Property owners might not like the idea of someone living so close to them. It takes money to create these units. The density of residential neighborhoods is important to many single-family home owners; they often want more space. Does this create more demand for parking and vehicles? Could this lead to tension on a block if some want to add units and neighbors are not as bullish on the prospects?

Furthermore, do these efforts continue to concentrate wealth and opportunities in the hands of particular land owners who can afford to create and rent units? Will this truly lead to more cheap housing or will certain neighborhoods have more of these units at higher prices?