For many homeowners, retirement comes with a big question: What do we do with all this space?

The house that once felt full of life can start to feel like more work than it’s worth. Extra bedrooms go unused, maintenance adds up, and the idea of simplifying becomes more appealing. Traditionally, downsizing meant moving into a condo, relocating, or even leaving the neighborhood you’ve called home for years.

But there’s another option more homeowners are starting to consider: downsizing into an ADU right on your own property.

An accessory dwelling unit allows you to stay in the neighborhood you love while transitioning into a smaller, more manageable space. For some, that means moving into the ADU and renting out the main house for income. For others, it means creating a comfortable home for aging parents just steps away.

It’s a flexible solution that balances independence, family connection, and long-term financial planning.

If you’re exploring whether this could work for your property, you don’t have to figure it out alone. Book a call with Maxable to get connected with local ADU designers and contractors who can help you understand what’s possible and guide you through the process.

Why More Homeowners Are Downsizing into ADUs

Downsizing doesn’t mean what it used to. For many homeowners today, it’s less about giving something up and more about using what you already have more efficiently.

One of the biggest drivers is the rising cost of living. Maintaining a large home can become expensive over time, from utilities to repairs to property taxes. Downsizing into an ADU allows homeowners to reduce those ongoing costs while still keeping ownership of their property.

There’s also a strong desire to stay in familiar neighborhoods. After years or decades in the same community, moving away from friends, routines, and local amenities isn’t always appealing. ADUs make it possible to stay put while adapting your living situation.

Another key benefit is flexibility. By keeping the main house, homeowners retain a valuable asset that can be rented out, passed down to family, or used differently in the future.

And beyond the financial side, there’s an emotional component. Many homeowners want to remain close to family while still maintaining their independence. ADUs offer a way to strike that balance.

Option 1: Move Into the ADU, Rent Out the Main House

For many 60+ homeowners, one of the most appealing strategies is simple: move into the ADU and rent out the main house.

This approach allows you to turn your largest asset into a source of income while simplifying your day-to-day living. Instead of maintaining a large home, you’re living in a space designed for your current needs.

There are a few major advantages:

  • Generate rental income from the main house
  • Reduce maintenance and utility costs
  • Enjoy a more manageable, right-sized living space
  • Create a travel-friendly lifestyle where you can lock up and leave with ease

Case Study: Portland ADU

One homeowner couple in Portland took exactly this approach. As empty nesters who loved to travel, they no longer needed the extra space in their main house.

They built a custom 800 sq ft ADU designed for efficiency, comfort, and low maintenance. The layout was tailored to their lifestyle, giving them everything they needed without excess space.

By moving into the ADU, they were able to rent out their main home, creating a steady source of income while freeing themselves from the burden of maintaining a larger property. It gave them both financial flexibility and the freedom to travel more often.

The best part? They went all out on the design going so far as to include a sauna, a loft, and an outdoor space that feels like a botanical garden. Check out Jerry and Terri’s 800 sq ft energy efficient ADU here.

Option 2: Bring Aging Parents Onto Your Property

For homeowners in their 40s and beyond, ADUs offer a different but equally powerful opportunity: bringing aging parents closer to home.

As parents get older, living alone in a large house can become challenging and, in some cases, unsafe. At the same time, moving them into your home may not be ideal for maintaining independence and privacy.

An ADU creates a middle ground.

It allows you to:

  • Keep your parents close by for support and supervision
  • Maintain separate living spaces for independence
  • Provide a safer, more accessible environment
  • Reduce or delay the need for costly assisted living facilities

With rising housing costs, multi-generational housing has become increasingly popular offering a solution that benefits all parties involved.

Case Study: San Francisco ADU for Elderly Parents

In this project, a homeowner became concerned about his parents, both in their 90s, living alone in a two-story home.

To solve this, he purchased a property nearby and built a custom two-bedroom ADU specifically designed for their needs.

The design focused on aging-in-place features, including:

  • Space for a wheelchair-accessible ramp
  • A curbless, walk-in shower with a built-in seat
  • A single-story layout to eliminate stairs

By bringing his parents closer, he was able to provide daily support and peace of mind, while still allowing them to maintain their independence and dignity.

You can get a virtual tour of the two-bedroom ADU here.

Designing an ADU for Aging in Place

If you’re planning to downsize into an ADU or build one for aging parents, design plays a critical role. A well-designed ADU can support long-term comfort, safety, and independence.

Some of the most important features to consider include:

  • Single-story layouts to eliminate the need for stairs
  • Wider doorways and hallways to accommodate mobility aids
  • No-step entries for easier access
  • Curbless showers that reduce tripping hazards
  • Slip-resistant flooring for added safety
  • Ample lighting, especially in hallways and bathrooms

It’s also important to think beyond immediate needs. Designing for the future, sometimes called “future-proofing,” ensures the space can adapt as mobility or health needs change over time.

Even small design decisions made early can make a big difference later.

Financial Benefits of Downsizing to an ADU

Beyond lifestyle improvements, downsizing to an ADU can be a strong financial strategy.

One of the biggest advantages is the ability to generate rental income from your main home. For many homeowners, this income can help cover living expenses, supplement retirement savings, or provide long-term financial stability.

In cases where the ADU is built for aging parents, there can be significant savings compared to traditional care options. Assisted living facilities can be costly, and an ADU provides a more affordable alternative while keeping family close.

ADUs can also increase overall property value. A home with a permitted ADU is often more attractive to future buyers, especially those looking for rental income or multigenerational living options.

And perhaps most importantly, ADUs offer long-term flexibility. Over time, the use of the space can evolve:

  • Live in the ADU now, rent it later
  • House family members today, generate income in the future
  • Adapt the space as your needs change

That flexibility makes an ADU not just a housing solution, but a long-term investment in both your property and your lifestyle.

Is Downsizing to an ADU Right for You?

Downsizing into an ADU can be a powerful way to simplify your lifestyle, stay close to family, and make the most of your property. But like any major decision, it comes down to your personal goals and situation.

Ask yourself:

  • Do you want to stay in your neighborhood long-term?
  • Do you have unused space on your property that could support an ADU?
  • Are you planning ahead for future care needs, either for yourself or your parents?
  • Would rental income from your main home improve your retirement plan?

If you’re answering “yes” to most of these, an ADU could be a smart and flexible solution that supports both your current lifestyle and your future plans.

The next step is understanding what’s actually possible on your property.

Book a call with Maxable to get personalized guidance, explore your options, and get connected with vetted ADU designers and contractors in your area. It’s the easiest way to turn your ideas into a clear, realistic plan.