Accessory Dwelling Units in Grants Pass &
Southern Oregon

An ADU, or Accessory Dwelling Unit, is a secondary living space on the same lot as a primary residence, often referred to as granny flats, in-law units, or backyard cottages. These units include independent facilities for cooking, sleeping, and sanitation, providing flexible living options. They are ideal for rental opportunities or additional family space, and add significant value to your property. In Oregon, legislation supports homeowners' rights to build ADUs, enhancing property utilization and accommodating diverse living arrangements. Grants Pass has generous ADU regulations that allow larger structures than many surrounding communities.

ADU construction prices in Grants Pass typically range from $200 per square foot for standard construction or $300 per square foot + for premium materials and custom solutions. This covers everything from planning and permits to construction and finishing touches. Investing in an ADU can significantly enhance property value and provide a potential source of rental income. For a precise quote tailored to your specific project, it's best to consult directly with us.

New ADU construction typically takes from 3 to 6 weeks, though the timeframe can vary with the complexity and size of the project. 

The answer is probably yes! In Oregon, most residential zoning districts must allow for the construction of ADUs. However, Grants Pass has limitations based on the size of lot, placement of the ADU, shared utilities, etc.... Call us! We're happy to help you better understand the options in your area.

Yes, you will need permits to build an ADU. Grants Pass residents can obtain these on the city website. Residents outside city limits must obtain both a Land Use Compatibility Statement and Building Safety approval from the Josephine County Community Development Department. In addition all ADUs must be inspected to ensure compliance with building codes. We will handle the permitting process for you, ensuring that all paperwork is completed accurately and efficiently to avoid any delays in your project.

ADU's of up to 1000 square feet are allowed within the city of Grants Pass.  Individual properties may face additional constraints due to lot size, ADU placement, etc... An exception is allowed for primary residences where a whole level is converted to a secondary residence.  

Josephine county ADU's outside of Grants Pass are capped at 900 square feet. 

ADUs are generally intended for residential use, which includes long-term housing, use as a guest house or personal use as an office, studio, etc.... 

Josephine County does not allow ADUs to be used or short-term rentals, however the City of Grants Pass does allow Short Term rentals in certain zones, subject to VRD permits.

ADUs can be financed through savings, home equity loans, home equity lines of credit (HELOCs), or personal loans. Some homeowners also choose to refinance their existing mortgage and cash out some of their equity to fund the addition. 

We recommend using Rogue Community Credit Union to support the local economy.

Yes. Grants Pass does offer free pre-approved ADU plans in three sizes (728, 576, and 416 square feet). While they can streamline the permit process, minor changes may require additional approval. We've found it's often more efficient to start with a custom plan. We're happy to walk through all your options to determine the one that's best for you.