Custom ADUs and Accessory Dwelling Units

Custom ADUs designed to provide independent living space while complementing the character and function of your home.

50+ Years of Experience

Fully Permitted Construction

Custom Built for Your Home

Greater Eastside Service Area

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VIRTUAL ESTIMATE

    Custom Design
    Tailored to You

    Seamless
    Integration

    Year-Round
    Comfort

    Quality
    Craftsmanship

    Local Team.
    Personal Service.

    FLEXIBILITY FOR TODAY. OPTIONS FOR TOMORROW.

    Why Homeowners Are Building ADUs

    Why Homeowners Are Building ADUs

    An Accessory Dwelling Unit, often called an ADU, creates independent living space on your property without requiring a move or major lifestyle change.

    For some homeowners, that means creating space for aging parents.

    For others, it means providing housing for adult children, welcoming long-term guests, creating rental income opportunities, or planning for future needs. A thoughtfully designed ADU offers privacy, independence, and flexibility while remaining connected to the home and property.

    As an experienced Design/Build contractor, Sun Spaces creates custom ADUs that are designed around the people who will use them and the goals they are intended to support.

    Custom
    Design/Build

    Permananent
    Construction

    Fully Permitted
    Projects

    Year-Round
    Living Space

    Custom ADUs and Accessory Dwelling Units Greater Eastside
    Custom detached ADU designed for multi-generational living with independent space for family members.

    Multi-Generational Living

    Create independent living space for family members while keeping loved ones close and connected to everyday life.

    Custom backyard guest house ADU providing comfortable and private accommodations for visitors.

    Guest Accommodations

    Provide visitors with privacy, comfort, and a dedicated space designed for extended stays and flexibility.

    Custom backyard guest house ADU providing comfortable and private accommodations for visitors.

    Rental Opportunities

    Generate supplemental income with a fully independent living space designed for long-term value and use.

    Flexible ADU interior designed for remote work, guests, and changing lifestyle needs.

    Future
    Flexibility

    Create adaptable space that can evolve with changing family needs, lifestyle goals, and future plans.

    Custom ADUs and Accessory Dwelling Units Greater Eastside

    DESIGNED FOR YOUR PROPERTY

    Every ADU Starts With a Custom Design

    No two properties are alike.

    Lot size, existing structures, access requirements, local regulations, and homeowner goals all influence the design of an ADU.

    That is why every project begins with understanding the property itself and how the space is intended to be used.

    Whether attached to the home or built as a detached structure, a custom ADU should complement the architecture of the property while providing comfortable and functional living space.

    OUR SERVICES

    A Simple, Collaborative Process

    Virtual Assessment

    We start with a conversation about your goals, budget, and ideas.

    Custom Design

    We design a solution that fits your home and how you plan to use it.

    Planning & Permits

    We handle the details so your project moves forward smoothly.

    Expert Construction

    Your space is built with attention to detail and long-term quality.

    FREQUENTLY ASKED QUESTIONS

    Helpful information for homeowners planning a new space.

    An ADU, or Accessory Dwelling Unit, is a secondary living space on the same property as a primary home. It may be attached, detached, or built within part of an existing structure.

    ADUs are commonly used for multi-generational living, guest accommodations, rental opportunities, home offices, studios, or flexible long-term living space.

    In many cases, yes. Rental rules can vary by city, property type, and local requirements, so it is important to review what applies to your specific property.

    Yes. ADUs typically require permits and must meet local building, zoning, utility, and safety requirements.

    A room addition expands the main home. An ADU is designed as a more independent living space and often includes its own kitchen, bathroom, entrance, and living area.

    Yes. Many custom ADUs include a kitchen or kitchenette, bathroom, bedroom, living area, laundry, and a separate entrance.

    Cost depends on size, design, site conditions, utilities, finishes, and permitting requirements. A free virtual assessment is the best way to begin understanding your options.

    A Design/Build contractor manages design and construction together, helping create a smoother process

    and an ADU that fits your property, goals, and long-term use.

    Ready to get started on your project?

    We are different than your average “construction” company as we offer our customers everything they need “under one roof”.