Unlock new living potential within your existing Beaverton home with a precisely engineered Junior ADU.
Get Your Free EstimateA Junior ADU (JADU) involves transforming an existing space within your primary residence, such as a bedroom, basement section, or attached garage, into a self-contained living unit. This unit must be 500 square feet or less, include an efficiency kitchen (sink, cooking appliance, and refrigerator), and share a bathroom with the main dwelling or have its own. Critically, a JADU does not require an additional parking space, which simplifies permitting compared to a full ADU.
Our approach to JADU construction in Beaverton focuses on maximizing the utility and comfort of these compact spaces. We prioritize intelligent layout design, ensuring every square foot serves a purpose, from built-in storage solutions to efficient appliance placement. This means selecting compact, energy-efficient fixtures and appliances that fit the scale of the unit, like 24-inch induction cooktops and under-counter refrigerators, which are ideal for smaller kitchens.
For Beaverton homeowners, a JADU provides a practical solution for housing aging parents, adult children, or generating passive rental income without the complexities of new construction. Because JADUs are integrated into the main dwelling, they often have lower utility connection costs and shorter permitting timelines than detached units. This makes them an attractive option for homeowners looking for a quicker return on investment.
Common concerns for JADU projects include soundproofing between units and ensuring adequate natural light and ventilation. We address these by specifying high-STC rated insulation in shared walls and ceilings, like Roxul Safe'n'Sound, which significantly reduces sound transfer. We also evaluate existing window placements and recommend additional fenestration or strategically placed skylights to brighten the interior, particularly in converted garage spaces that often lack natural light.
We ensure all JADU projects comply with Beaverton's specific building codes and Washington County regulations. This includes proper egress windows, smoke and carbon monoxide detectors, and adherence to the Oregon Residential Specialty Code (ORSC) for electrical, plumbing, and structural modifications. Our material selection emphasizes durability and low maintenance, using products like luxury vinyl plank flooring for its water resistance and longevity, which is critical in a high-traffic rental unit.
A well-constructed Junior ADU in Beaverton offers more than just extra space; it's a long-term asset. The city's climate, characterized by wet winters and dry summers, demands specific construction considerations. Improper moisture management can lead to mold growth and structural issues, especially in converted spaces like basements or garages.
Our focus on robust waterproofing and ventilation systems, including vapor barriers and exhaust fans rated for continuous operation, protects your investment from Beaverton's persistent rainfall. This prevents moisture intrusion and maintains healthy indoor air quality, which is vital for occupant comfort and property value. We also consider seismic bracing for interior wall modifications, aligning with Oregon's building standards to ensure structural integrity.
Furthermore, Beaverton's housing market benefits from diverse housing options. A JADU provides an affordable, flexible housing solution, which means it enhances your property's marketability and value. A JADU built to current code and with quality materials will appraise higher and attract reliable tenants or provide a comfortable, safe space for family members for decades.
We visit your Beaverton property to assess the existing space for JADU suitability, considering structural elements, utility access, and local zoning overlays. This helps determine the most efficient layout and potential challenges early on.
Our team collaborates with you to develop detailed architectural plans, including floor plans, elevations, and mechanical/electrical/plumbing schematics, ensuring compliance with Beaverton's specific JADU requirements. We manage the entire permit application process with the City of Beaverton Building Department.
Once permits are secured, our skilled tradespeople begin construction, focusing on structural modifications, utility extensions, and the installation of the efficiency kitchen and any new bathroom elements. We prioritize sound attenuation in shared walls and ensure all systems, from HVAC to electrical, are seamlessly integrated and up to code.
We coordinate all necessary inspections with city officials throughout the build, culminating in a final walk-through and certificate of occupancy. This confirms your new JADU is safe, compliant, and ready for use, whether for family or rental income.
Coastal ADU proudly serves homeowners throughout Beaverton, OR, bringing functional and code-compliant Junior ADU solutions to neighborhoods like Sexton Mountain, Cedar Hills, and Central Beaverton. Our understanding of local zoning and building codes ensures a smooth project from start to finish.
We also extend our JADU expertise to surrounding communities including Tigard, Hillsboro, and Aloha. Whether your home is near the Tualatin Hills Nature Park or closer to downtown Beaverton, we provide the same level of detail and craftsmanship, adapting our approach to each property's unique characteristics and local regulations.
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