Is an ADU the Right Move for You?

A Flexible, Future-Friendly Housing Option in Snohomish County

Let’s be real—finding affordable, flexible housing in Snohomish County (or anywhere in the greater Puget Sound) isn’t exactly easy these days. Between rising home prices, high interest rates, and limited inventory, many buyers are looking for smart ways to make the most out of their investment—and homeowners are exploring creative ways to generate income or house loved ones.

Enter the ADU: Accessory Dwelling Unit. It’s more than just a backyard cottage—it could be your path to passive income, multigenerational living, or both. So, is it the right move for you? Let’s dive in.

First Off, What Is an ADU?

An Accessory Dwelling Unit (ADU) is a self-contained living space located on the same lot as a single-family home. Think of it as a second home—just smaller and often more charming. To qualify as an ADU, it must have its own:

• Sleeping area

• Kitchen

• Bathroom

• Separate entrance (usually)

ADUs come in three flavors:

• Detached ADU: A standalone unit, like a backyard cottage or tiny home.

• Attached ADU: An addition to the main house, such as a converted garage or new wing.

• Interior ADU: A reimagined basement, attic, or other space inside the primary residence.

What’s New With ADUs in Washington?

Washington State has made big moves recently to encourage ADU construction. In July 2023, House Bill 1337 went into effect—loosening up zoning restrictions across many cities and counties. Here’s what changed:

• Most lots zoned for single-family use can now have at least two ADUs (one attached and one detached).

• Parking requirements have been relaxed or removed in many areas.

• Local governments can no longer impose overly strict owner-occupancy rules in many cases.

• ADU permits are now streamlined and, in some places, fee-reduced or expedited.

In cities like Seattle, Everett, and even Lake Stevens, this means it’s easier—and more affordable—than ever to build or buy a property with an ADU.

Why Are ADUs So Popular Right Now?

You’re not imagining it—ADUs are everywhere in conversations about smart housing solutions. According to a 2024 report by the National Association of Realtors, more than 1 in 5 buyers say an ADU is a top feature they’re seeking. Why? Because they offer:

💰 Big Financial Upside

Renting out your ADU can help offset that monthly mortgage. In Snohomish County, long-term ADUs can generate anywhere from $1,500 to $2,500+ per month, depending on location and amenities. Some homeowners even furnish them as short-term rentals (where allowed), tapping into the growing demand for flexible travel lodging.

🧡 Multigenerational Living Made Easy

Have aging parents who want independence but need to be close? ADUs are a perfect alternative to expensive assisted living. Likewise, college-age kids (or returning adult children) can enjoy their own space while staying connected to family.

👶 Built-in Childcare (and Peace of Mind)

An onsite grandparent or family member living in your ADU could mean built-in childcare—a huge cost saver. With daycare prices often topping $1,200+ per month per child in the region, that’s a serious perk for young families.

🛠️ Future-Proof Flexibility

Today it’s a rental. Tomorrow, it’s your home office, art studio, guest suite, or a cozy spot for a live-in caregiver. ADUs add flexibility and value—something every buyer and investor should be thinking about.

But Before You Build or Buy…

A few things to keep in mind:

• ADUs typically can’t be sold separately. They’re considered part of the primary residence.

• Zoning and permitting still matter. Rules vary by city, so always double-check local codes or work with someone who knows them (hi 👋).

• Costs vary. Building an ADU from scratch can run $100K–$300K+ depending on size, finishes, and utility hookups—but the long-term ROI can be significant.

So, Is an ADU Right for You?

If you’re a homeowner looking to increase your property’s value, generate income, or house someone you love—an ADU could be your golden ticket.

If you’re a buyer, purchasing a home with an existing ADU means built-in potential from day one.

Let’s Chat!

Whether you’re thinking of building or buying with an ADU in mind, I’d love to walk you through local regulations, return-on-investment projections, and current listings in Snohomish County. ADUs aren’t just trendy—they’re practical, future-forward, and financially savvy.

📲 Curious about ADUs near you? Let’s talk strategy!