- Group housing typically looks like a single-family residence from the outside and located within single-family neighborhoods. Inside, each resident has a private bedroom and possibly a private bathroom. The rest of the house is common space shared by all residents. A certified nurse or care giver may reside on site or visit regularly. Not all zoning codes allow group housing, but allowing group housing will provide more options for older adults.
- Accessory dwelling units (ADU) allows a 2nd unit to be built on a lot with an existing house. The ADU may house a recent college graduate looking for a job or an elderly parent. ADUs can also be rented to non-family members. Again, not all zoning allows ADUs. However, including ADUs in the housing mix can increase options for families as well as provide additional rental options.
- ADUs can be taken to the next level by allowing the ADU to be sold independent of the main house. This can provide additional flexibility for the homeowner. To encourage more accessible housing, zoning could allow the minimum lot size to be ½ the current size provided that a "universal design" house built on each ½ lot. This would allow a homeowner in an existing single-family neighborhood to scrap the house, replace with 2 universal design houses, and potentially live in one of the houses while selling the other house to pay off the construction loan.
- For a mixed generational neighborhood, every 3rd or 4th unit should be a different size. For example, if the development is primarily a family neighborhood with 3+ bedroom houses, the "other" houses would be smaller such as patio homes for older adults. The housing mix should attract singles, couples, families with children, and empty nesters.
One of the goals is to support people living and aging in their city. Thus, aging in neighborhood is balanced by optimizing community resources in that larger houses are primarily occupied by larger households. When downsizing, hopefully the person or couple is literally only moving a few feet to a familiar house, thereby minimizing the stress associated with moving. A new young family now has the opportunity to move into the city and live in the larger house.