Sienna
About the Sienna
The Sienna is a beautifully designed 900 square foot ADU featuring 2 bedrooms and 2 bathrooms. Every plan by CRS Builders comes with premium finishes including quartz countertops, luxury vinyl plank flooring, and modern fixtures.
This plan is fully customizable — adjust the layout, finishes, and features to match your exact needs and property constraints. Our design team will work with you to make it yours.
What's Included
Is the Sienna right for your property?
The Sienna works well for homeowners who want a larger two-bedroom ADU that feels like a complete small home rather than a compact backyard unit. CRS Builders uses the floor plan as a starting point, then studies your property, access, budget, and permitting path before recommending the final layout.
Before choosing any ADU plan, it is important to confirm setbacks, utility locations, site access, privacy, and how the new unit will relate to the existing home.
The Sienna is large enough to function as a complete secondary residence, so site planning becomes especially important. CRS can review outdoor space, privacy screening, drainage, and construction access early so the larger footprint improves the property rather than crowding the main home.
For a plan this size, CRS can also help compare finish levels and site work so the budget matches the way the ADU will actually be used.
Property Fit
Best suited for larger yards or corner lots where a 900 square foot footprint can support strong indoor-outdoor flow.
Design Checks
Key items include site drainage, privacy from neighboring homes, fire separation, utility load, and how the larger footprint affects the remaining yard.
Common Upgrades
Homeowners often consider covered patio space, premium kitchen package, larger closets, dedicated laundry, additional storage, and energy-efficient HVAC zoning.
Next Step
Compare this plan with our ADU construction process, schedule a free consultation, or view a related portfolio project.
See It Come to Life.
Love the Sienna?
Schedule a free consultation and we'll walk you through how the Sienna can work on your property. Every plan is fully customizable — no pressure, no obligations.