Accessible one bedroom ADU
A spacious, design-forward detached ADU built for real everyday living. With a larger footprint and a two-level layout, Signature Modern creates clear separation between shared living space and private rooms—making it a great fit for multigenerational living, long-term rental income, or a high-end guest home.
Clean lines, modern massing, and flexible finish options give it a sharp, contemporary look that still feels right in a backyard setting.
Estimated Pricing
- Basic Build (baseline finishes): ~ $299,000
- As-Built With Upgrades: ~ $462,000
- Suggested Selling Price: ~ $532,000 – $556,000
Pricing varies based on site conditions, access, utilities, permitting requirements, and finish selections. Final pricing is confirmed after a site review and scope is defined.
Key seattle DADU features
- Approx. 1,216 sq ft of a larger, more livable ADU footprint and two-level design intent
- Zoned layout that helps the home feel organized (shared living areas separate from private spaces)
- Modern exterior style with clean elevations and a bold, contemporary presence
- More flexibility for storage + daily function compared to a compact ADU
- Strong rental appeal for long-term tenants, extended family, or a higher-end guest setup
- Finish customization for siding, trim, windows, and exterior color to match (or elevate) the primary home
What’s Included in the Seattle DADU plan set?
This plan set provides a solid, buildable foundation to move forward with a detached ADU, including the key drawings needed to define the layout, exterior design, and overall construction intent.
Typically included:
- Floor plan layouts and core dimensions
- Exterior elevations
- Essential architectural details needed to price and permit the build
Still required for permitting (site-specific):
You’ll still need items like a site plan, utilities/connection details, and completed permit paperwork based on your jurisdiction’s requirements. We can help identify what’s needed for your lot and coordinate the next steps.
Exclusions
Under United Signature / Signature Build, site preparation, utilities, foundation work, and any required drainage, hardscape, fire suppression, or flame-retardant systems are not included in the base package price. These items, along with applicable sales tax, will be evaluated and itemized separately in your detailed cost breakdown after our team reviews the specific conditions and requirements of your property. Any visual renderings or illustrations may show optional features or upgrades that are not part of the standard package offering. For complete and accurate information on what is included, please refer to the written specifications and scope of work provided for your project.
