ADU

Accessory Dwelling Unit (ADU) Design in Portland, Oregon & Surrounding Areas

Architectural Design, Drafting, Floor Plans & Permitting for ADUs in Portland, OR

Maximize your Portland property by adding a smart, income-generating ADU. With rising demand for rentals and updated local rules, now is the perfect time to turn unused space into value.

Is Your Property Ready for an ADU?

We assess every detail to confirm feasibility before you invest time or money:

  • Lot size and zoning compliance with Portland’s ADU regulations
  • Existing home layout for attached or detached options
  • Utility capacity, setbacks, and tree protection requirements
  • Privacy for both your family and future tenants

Design That Complements, Not Competes

Your main home stays the star. We craft ADUs that blend seamlessly:

  • Modern studios tucked behind Craftsman homes in Laurelhurst
  • Compact lofts above garages in Southeast Portland
  • Standalone cottages with private entries in West Linn backyards

Sizes range from 300 to 800 square feet based on Portland’s lot-specific rules.

Attached or Detached? We Find the Best Fit

Property layout drives the decision, but we optimize for livability:

  • Attached ADUs for easy access and lower build costs
  • Detached units for maximum privacy and rental appeal
  • Shared or separate utilities based on budget and code

Upfront Feasibility & Budget Guidance

We run the numbers early so you know the potential return:

  • Rough construction cost estimates tailored to Portland market rates
  • Rental income projections using local ADU comps
  • Short-term rental (STR) eligibility checks with city guidelines

Navigate Permitting with Confidence

ADU rules are complex, but we handle the details:

  • Pre-application meetings with Portland BDS
  • Full compliance with height, coverage, and parking standards
  • Streamlined submittals to avoid delays or rejections

Boost Income & Property Value

A well-designed ADU delivers ongoing benefits:

  • Steady rental income to offset your mortgage
  • Flexibility to rent short-term during travel
  • Increased home equity in Portland’s competitive market

Expertise Across Clackamas, Washington & Multnomah Counties

ADU building design plans Portland Oregon
From Hillsboro to Milwaukie, we know every jurisdiction’s ADU code inside out.

  • ADU Design & Permitting
  • Custom Home Design
  • Remodeling & Renovation
  • Full Architectural Services

From concept to rental-ready, we guide every step.

Call now to explore your ADU potential and start earning from your Portland property.