Creating functional spaces with an ADU
ADUs are a smart way to add functional living space to your property. From backyard cottages to garage conversions, they offer flexibility to adapt your home to changing needs while adding long-term value—without sacrificing its character.
At Pinnacle Builders, we help homeowners navigate the ADU process with clarity and confidence, from early planning through construction.
About Us
Why Homeowners Choose ADUs
Rental units | Multigenerational housing | Aging-in-place options for parents or grandparents | Home offices or dedicated workspaces | Creative spaces or playrooms
Whether you’re dreaming of a private retreat, housing for loved ones, or planning a long-term investment, an ADU can be designed to grow with you. We provide clear guidance and quality craftsmanship to ensure your ADU fits your property, your goals, and your budget.
Increase your property value with an ADU
ADUs are growing in popularity across the Willamette Valley. Improved permitting and changing housing needs make them a smart way to expand your living space, attached or detached from the main dwelling, while also increasing your property’s value. Many homeowners use ADUs to generate rental income, create flexible living options, or invest in a long-term addition to their property.
When you build your ADU with Pinnacle Builders, we start by listening to your needs, understanding your goals, and learning your budget. From there, we present options tailored to your project.
Whether your vision is simple and cost-effective or trendy and luxurious, we approach every build with care, collaboration, and attention to detail, so the process feels as well-crafted as the final space.
Key factors that influence the cost of an ADU
Understanding how desired elements for your ADU affect cost helps you plan your project with confidence and within your budget.
Square footage
Larger spaces require more materials and labor.
Layout
Single-story, multi-level, vaulted ceilings, or other architectural features impact complexity and cost.
Location on property
Attached or detached; site conditions may influence foundation and utility connections.
Materials and finishes
Flooring, cabinetry, countertops, fixtures, and appliances all play a role.
Utilities and systems
Plumbing, electrical, HVAC, and sewage connections vary by design and site.
Accessibility features
Incorporating ADA-inspired design, such as wider doorways, ramps, and accessible bathrooms, can influence construction costs.
Sustainability features
Energy-efficient or smart-home upgrades may add to the budget.
Once we understand your property’s location, zoning requirements, and goals, we ensure your ADU is sized and designed to complement your main dwelling, meet all local regulations, and secure the permits on your behalf.
Consultation and Design Services
When designing a living space with limited square footage, every square foot counts. Our team has a dedicated designer who understands this and is skilled at bringing your vision to life. Through our consultation and design services, we consider all the details, including privacy and flow, to create a functional, smart design for your ADU.
FAQs
How long does it take to build an ADU?
The time it takes for a city to process permits varies from place to place. Once permits are in place, depending on whether we are renovating or building from the ground up, expect a 4-6 month timeline.
Do you handle getting the required permits?
Yes, we are happy to take this off your plate so you can focus on your vision.
How much does an ADU cost?
Costs vary depending on size, layout, materials, utilities, and features like accessibility or sustainability upgrades. We provide clear guidance upfront so you can plan within your budget.
Can ADUs be designed for aging-in-place?
Absolutely. We can incorporate accessibility features, such as wider doorways, ramps, and accessible bathrooms, to make the space comfortable for anyone with mobility needs.
Do you design the ADU to match my home?
Yes! Whether your aesthetic is modern, traditional, or somewhere in between, we ensure the ADU complements the main dwelling while reflecting your personal style.
What if my property has challenging site conditions?
We consider factors like slopes, drainage, and utility connections early in the design process. Our team plans accordingly to ensure your ADU is functional, code-compliant, and cost-effective.