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Best ADU Services in Mountlake Terrace WA

Accessory Dwelling Units (ADUs) are more than just additional structures—they’re a practical response to evolving housing needs. Bergquist Designers & Builders LLC focuses exclusively on delivering Best ADU Services in Mountlake Terrace WA, that are purpose-built, zoning-compliant, and fully aligned with local requirements. Our approach is centered on function-first layouts, cost-efficiency, and longevity. Whether you’re considering a backyard unit for long-term tenants, converting a garage for a college-age child, or outfitting a basement for aging family members, we make the process straightforward.

With years of hands-on experience in Terrace, we understand ADU construction’s local terrain, building restrictions, and utility challenges. We don’t apply generic templates—we analyze the specifics of each lot and structure to determine the best path forward. Our team manages the entire scope from drafting floor plans to final build-out. Our focus is always on delivering a finished space that’s legally approved, thoughtfully designed, and ready to serve whatever role you need it to—now or later. We believe space should adapt to your life, not the other way around.

Pick the Right Fit: Choosing the Best ADU Layout for Your Property

Not every lot—and not every lifestyle—calls for the same ADU setup. Selecting the right layout from the start is key. We assist homeowners in choosing layouts that follow zoning rules and make life easier. The layout is important whether you’re adding a rental unit, housing family members, or making a personal office.

Here's how we guide you:

  • Detached ADUs: Ideal for maximum privacy. These standalone units are perfect for rental income or independent living spaces away from the main home.
  • Attached ADUs: A smart solution when property lines are tight. These connect directly to your existing structure and often share one wall.
  • Garage Conversions: An efficient way to repurpose existing space without expanding the footprint. Great for guests or adult children.
  • Above-Garage Units: Utilize vertical space to add liveable square footage while preserving yard area below.

Before recommending a direction, our team assesses your lot’s layout, city allowances, and long-term plans. With the reliable ADU services in Mountlake Terrace WA, you can make the most of your property without compromising comfort or function.

Why Choose Us

Handle Odd Lot Shapes

We work with narrow yards, sloped driveways, and awkward corners. No matter how unusual your lot looks, we find practical ways to make an ADU possible without cutting corners.

Don't Leave You Hanging

We stay connected from the day we start until the unit is ready. You won't be chasing updates or wondering what's next—we keep the process moving and transparent.

Respect Your Daily Life

We organize every build to keep your space as livable as possible. We reduce unnecessary noise, schedule cleanups, and stay mindful of your routines throughout the project.

FAQs

Detached units often rent faster due to more privacy, but both work if designed well. We help you weigh options based on how you plan to use the space long term.

Garage conversions are quicker and usually cheaper, especially if your structure is solid. A small new build may be better if your garage can’t support residential use.

That depends on lot coverage rules, height limits, and shadow impact. We check the Terrace zoning and ensure you’re not breaking any codes before moving forward with two floors.