Build Your Dream Backyard Cottage with Seattle’s Leading DADU Builder: Why Homeowners Choose Apex DADU
- Greg Brown

- Sep 11
- 3 min read
Are you ready to transform your backyard—and your finances, lifestyle, or family possibilities? Discover how building a detached accessory dwelling unit (DADU) in Seattle or King County can elevate your property, and why Apex DADU is the #1 team to bring your vision to life.

The DADU Revolution: Why Now?
Seattle’s housing market is rapidly evolving, and savvy homeowners are seizing the opportunity to add value and flexibility to their property by building backyard cottages. Recent changes in Washington State law (HB 1337) and Seattle/King County ordinances have unlocked unprecedented potential: now you can add two ADUs per lot, relax owner-occupancy restrictions, and realize faster permitting than ever before.
A modern DADU isn’t just an extra unit—it’s:
Steady rental income (average $1,800–$2,500/month for a 1BR in Seattle)
Expanded space for multigenerational living or guests
A future-ready home office, studio, or flex suite
Significant property value boost
A lasting asset for your family and legacy
Why Partner with Apex DADU?
You deserve a builder who makes the process seamless, not stressful. Apex DADU is Seattle’s DADU specialist—here’s what sets us apart from the rest:
Speed: Apex’s streamlined permitting and construction processes mean you can move in (or start collecting rent) months faster than most competitors. Skip the delays—the Apex team’s deep knowledge of Seattle and King County codes keeps your project on track.
Value & Cost Transparency: You want strong ROI, not budget anxiety. Apex offers honest, market-competitive pricing with no surprises. We help you optimize your investment, select the right plan (pre-approved, semi-custom, or fully custom), and unlock every available square foot.
Superior Quality: Your DADU should be built to last and delight. Apex uses best-in-class materials, skilled local craftspeople, and exacting standards so your investment stands the test of time, rain or shine.
Customization Without Compromise: We offer a range of signature DADU models (like our Cascade, Olympic, and Rainier options), and every unit is tailored for your goals and your lot. Don’t settle for “one size fits all”—get a home that fits your life.
Total Project Management: Design, permitting, construction, and inspection—handled under one roof. Our single-point-of-contact model means you’re never left managing between multiple vendors or the city. Enjoy peace of mind while we handle it all.
Mastery of Local Code & Zoning: Apex is fluent in the latest Seattle/King County zoning and permitting requirements. We help you maximize what you can build, avoid common pitfalls, and ensure legal compliance.
Happy Homeowners: With consistently smooth builds and satisfied clients who love their new backyard homes, our testimonial record speaks for itself. Check our gallery to see what’s possible!
Don’t Settle—Get the Apex Advantage!
Choosing the cheapest (or flashiest) builder can result in costly headaches—delays, design regrets, cost overruns. Apex’s proven approach is different: our team is committed to delivering your DADU on time, on budget, and above expectations.
FAQ: Building Your Seattle DADU with Apex
Q: What makes Apex DADU different from other local builders?
Our speed, code expertise, transparency, and true full-service approach set us apart—and our clients consistently recommend us.
Q: How fast can I get my DADU built in Seattle or King County?
Apex’s streamlined model moves you from design to move-in in a fraction of the typical time, often doubling the speed of generic builders. Weeks, not years.
Q: How does Apex handle costs and contracts?
We offer competitive, transparent pricing and clear contracts, aiming to reduce surprises and keep your project on budget.
Q: Do you offer full design and permitting help?
Yes! Apex manages every step: site feasibility, custom or pre-approved plan selection, permitting, and build.
Q: Can I tour completed DADU projects?
Absolutely. Reach out for a preview of our Cascade, Olympic, and Rainier models or recent client homes.
Ready to Bring Your Dream DADU to Life?
Apex DADU is the trusted leader for innovative, future-friendly DADUs in Seattle and King County.


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