Planning an ADU in Mercer Island? Call (425) 582-1983 to explore a custom-built accessory dwelling designed for long-term value.
Craft & Forge Homes designs and builds high-quality accessory dwelling units (ADUs) for homeowners in Mercer Island, Washington. From backyard cottages to garage conversions and attached ADUs, we create thoughtfully designed living spaces that enhance property value while blending seamlessly with your primary home.
Accessory dwelling units offer one of the most flexible and future-proof ways to expand your living space. Whether you’re planning for family, rental income, or long-term adaptability, an ADU can be a strategic addition to your property.
Many Mercer Island homeowners consider building an ADU for the following reasons:
ADUs provide comfortable, private living spaces for aging parents, adult children, or extended family—while keeping everyone close.
A well-designed ADU can generate consistent rental income and significantly increase the long-term value of your property.
Home offices, guest suites, or downsizing options make ADUs a flexible solution as your needs evolve.
If you’re exploring ADUs in Mercer Island, our team can help you determine feasibility, navigate regulations, and design a solution tailored to your property.
As experienced ADU contractors serving Mercer Island, we manage every phase of your project—from concept through completion—with precision and care.
Standalone backyard cottages designed to maximize privacy, comfort, and architectural harmony with your primary residence.
We transform existing garages into fully functional living spaces while maintaining structural integrity and modern design standards.
Seamlessly integrated additions that expand your home while preserving its character and curb appeal.
Mercer Island ADU regulations can be complex. We guide you through zoning, permitting, and code compliance to ensure a smooth approval process.
We build ADUs with durable materials, energy-efficient systems, and high-quality finishes for long-term comfort and low maintenance.
Our detailed 3D renderings allow you to visualize layouts, finishes, and massing before construction begins—eliminating surprises and ensuring alignment.
Hear from Patrick on how we built his perfect Patio.
Homeowners trust us to deliver ADUs in Mercer Island that are thoughtfully designed, expertly built, and supported by a seamless client experience.
We are licensed, insured, and deeply familiar with building high-quality ADUs in established Washington communities. Our goal is to create spaces that serve you well for decades.
An ADU is more than an addition—it’s an investment in flexibility, value, and future living. At Craft & Forge Homes, we design and build ADUs that feel intentional, refined, and built to last.
Call Craft & Forge Homes at (425) 582-1983 to schedule your ADU consultation in Mercer Island, WA.
With home construction in the Seattle area, pricing can be confusing.
We have a solution. Our cost guide gives you exact details for how much your project could cost based on industry standards.
What’s included in this cost guide:
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We don’t just build homes, we build futures. Hear from our past clients on how Craft & Forge helped bring their dream home into reality.
Here are answers to the most common questions we receive from homeowners considering ADU construction projects.
Yes, ADUs require building permits and must comply with local zoning regulations, setback requirements, and building codes.
Most jurisdictions allow ADU rentals, though some areas have restrictions on short-term rentals or require owner occupancy of the main residence.
Most ADU projects take four to eight months from design to completion, depending on size, complexity, and permit processing times.
Absolutely. Whether you bring your own plans or want help from the ground up, we offer full-service design to match your goals.
