Feasibility Studies

Architectural Concept & Feasibility Studies in Portland, Oregon & Surrounding Areas

Feasibility Studies & Due-Diligence for Projects in Portland, OR

Before you hire a designer or file permits, our feasibility studies confirm exactly what Portland, Multnomah County, and utilities will allow.

What a Portland Feasibility Study Actually Covers

Think of it as due-diligence with boots on the ground. We dive into city portals, utility records, and site realities to deliver a clear report plus annotated maps that spell out your buildable envelope.

Zoning & Land-Use Rules

We pull Portland’s exact zoning code (R5, RX, CM3, etc.) and flag conflicts upfront.

Setbacks, Height & Building Envelope

  • Front, side, rear, and eco-roof setbacks
  • Maximum height planes and FAR limits
  • Lot coverage caps overlaid on your survey
  • 3D massing of the largest compliant structure

Utility Capacity

  • Portland Water Bureau meter availability
  • BES sewer capacity confirmation
  • PGE or Pacific Power load letters
  • Stormwater and tree credit requirements

Building & Energy Code Quick-Hits

  • Oregon Structural Specialty Code (2024)
  • Portland Reach Code and net-zero pathways
  • Seismic retrofit triggers for additions
  • Latest ADU and middle-housing rules

Who Books a Feasibility Study in Portland?

  • Homeowners planning second-story pops in Laurelhurst or Alameda
  • Developers targeting infill lots in Southeast or St. Johns
  • Investors converting bungalows to duplexes under middle-housing code
  • Builders needing client sign-off before schematic design

Frequently Asked Questions

How is a feasibility study different from a survey?
A survey shows lines and elevation. A feasibility study shows what the city will let you build inside those lines.

Will this guarantee my permit?
No permit is guaranteed, but our reports cut plan-review surprises to near zero.

Contact Dos Designers today.

Licensed Portland, Oregon architects | Architecture-first design firm