Mighty ADU Company serves Beaverton, OR as a dedicated ADU contractor, specializing in crafting high-performance accessory dwelling units for homeowners. We understand Beaverton's unique blend of established neighborhoods like Old Town and newer developments near Nike's campus. Our approach focuses on delivering functional, durable, and code-compliant ADUs that enhance property value and provide flexible living solutions.
Get a Free Quote in BeavertonAn attached ADU is a secondary dwelling unit built directly onto your existing Portland home, sharing at least one common wall. This option allows for efficient use of existing infrastructure and can often simplify permitting compared to detached structures.
A detached ADU is a standalone structure on your property, separate from the main house, offering independent living space. This option provides maximum privacy and design flexibility, creating a distinct new dwelling.
A garage conversion transforms an existing garage structure into a fully functional, habitable living space, often including plumbing, electrical, and insulation upgrades. This process unlocks significant property value and provides flexible living options without expanding your home's footprint.
We manage the entire ADU permitting process in Portland, from initial application submission to final permit issuance. This ensures your project complies with all local zoning and building codes, avoiding costly delays.
ADU Design involves creating detailed architectural plans, structural drawings, and material specifications for your Accessory Dwelling Unit. This comprehensive design package ensures your ADU is code-compliant, functional, and aesthetically integrated with your existing property.
ADU engineering provides the structural and civil calculations needed for your Accessory Dwelling Unit's foundation, framing, and utility connections. This ensures your ADU is built safely, to code, and withstands Portland's specific environmental conditions.
Choosing Mighty ADU Company means partnering with a builder who genuinely understands the Beaverton regulatory landscape and local construction nuances. We're not just building structures; we're integrating them thoughtfully into existing properties, considering everything from lot orientation in neighborhoods like Sexton Mountain to utility connections in Progress Ridge. Our proximity allows for efficient site visits and responsive project management, which means less downtime and clearer communication throughout the build.
Our construction methodology prioritizes long-term performance and energy efficiency, which is crucial for the Pacific Northwest climate. We specify materials like high-performance insulation (e.g., R-21 wall insulation, R-49 in attics) and durable exterior cladding, such as fiber cement siding with a rain screen system, to manage moisture effectively. This detailed material selection and installation process ensures your ADU stands up to Beaverton's wet winters and provides comfortable, low-cost living for decades.
When you work with us, expect a structured process that begins with a thorough site assessment and feasibility study, evaluating zoning requirements specific to Beaverton and potential utility tie-ins. We then move into detailed design and permitting, navigating Washington County's specific submittal procedures. Our construction phase is managed with precision, featuring regular progress updates and strict adherence to the project schedule and budget. We deliver a complete, ready-to-occupy ADU, ensuring all final inspections are passed and the unit is fully operational.
Beaverton homeowners can build ADUs on most residential lots, as the city generally allows one ADU per single-family dwelling. The maximum size for an ADU is typically 800 square feet or 50% of the primary dwelling's living area, whichever is less, though there are specific height and setback requirements. These regulations are detailed in Beaverton Development Code Chapter 40, Section 40.25.10.3.C, which means careful design is necessary to meet these dimensional constraints while maximizing livable space. We always verify the most current regulations for each specific property during our initial feasibility study.
Building an ADU in Beaverton typically takes 9 to 14 months from the initial design consultation to final occupancy. The design and permitting phase usually accounts for 4-7 months, depending on the complexity of the design and the responsiveness of city planning departments. The actual construction phase then generally takes 5-7 months, influenced by factors like weather, material lead times, and the specific finishes chosen. This timeline includes critical milestones like foundation pouring, framing inspections, and utility connections, which require coordination with local Beaverton inspectors.
The average costs for building an ADU in Beaverton typically range from $180,000 to $300,000, depending on size, finishes, and site-specific challenges. This estimate includes design fees, permitting costs (which can vary based on Beaverton's fee schedule), utility hookups (e.g., sewer, water, electrical connections to the main house), and construction. Factors like extensive site work for sloped lots, premium interior finishes, or complex foundation systems can push costs towards the higher end of this range. We provide a detailed, itemized cost breakdown after the design phase to ensure clarity.
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