Lately, I’ve been seeing more and more homeowners—especially folks a little further along in life—doing something really smart with their properties: instead of selling and moving out, they’re building an ADU in the backyard and moving into it themselves. Then they rent out the main house. It’s such a simple idea, but it’s powerful. With the cost of living where it is, a lot of people are looking for ways to stay in their homes, stay in their neighborhoods, and still make the numbers work. And honestly, that lines up with what AARP has been saying for years—most people don’t actually want to leave their home as they get older, they just need a way to make it more functional for their next chapter.
What I like about this approach is that it doesn’t force a big life reset. You’re not selling, downsizing, and starting over somewhere new. You’re just reconfiguring what you already have. Build a smaller, more manageable space—something comfortable, efficient—and move into it. Now your larger home becomes an income-producing asset. In a market like Southern California, that rental income can go a long way. It can cover your expenses, create extra cash flow, and take a lot of financial pressure off retirement. And at the same time, you’re still right where you want to be—same neighborhood, same community, same routines.
From an investment standpoint, it just makes sense. You’re holding onto an appreciating asset, potentially increasing its value, and avoiding the tax hit that can come with selling. Groups like the Urban Institute and the Terner Center for Housing Innovation have been tracking this trend, and the growth in ADUs has been significant—especially here in California, where the California Department of Housing and Community Development has made it a lot easier to actually build them. And if you look at books like Building an Affordable House by Fernando Pages Ruiz or The Backyard Revolution by Kol Peterson, this idea of smaller, more efficient living isn’t new—it’s just finally getting the attention it deserves.
At the end of the day, this isn’t just about building a unit in your backyard—it’s about thinking differently about your home. For a lot of people, their house is their biggest asset, but it’s not really working for them in retirement. An ADU changes that. It gives you options. It gives you income. And it lets you stay put while still making a smart move financially. Honestly, that’s what I’m seeing more and more—people not just downsizing, but leveling up the way they use what they already own.
