Clackamas County Votes to Allow ADUs, Residential RVs

County officials hope the zoning changes will help boost the housing supply in the region.

1 minute read

June 18, 2024, 9:00 AM PDT

By Diana Ionescu @aworkoffiction


View of Mount Hood at golden hour with Happy Valley, Oregon homes in foreground.

Happy Valley in Clackamas County, Oregon. | jpldesigns / Adobe Stock

Clackamas County, Oregon residents will be allowed to include accessory dwelling units (ADUs) and recreational vehicles (RVs) as secondary housing units on properties in Rural Residential zones. 

According to an article in Mountain Times by Adrian Knowler, “ADUs are defined as permanent dwellings that include a kitchen, bathroom, and are permitted and connected to utilities, principal planner Martha Fritzie told the commissioners. She noted that ADUs can be either detached buildings, internal conversions or extensions of existing houses.”

The new rules apply to properties larger than two acres. ADUs must be no larger than 900 square feet, while RVs must be equipped with permanent essential services like water and sewage disposal.  The rules also prohibit renting these units as short-term rentals.

As Knowler notes, “The proposal came as state laws on land use have changed over the previous three legislative sessions. State law previously had prohibited ADUs outside urban growth boundaries such as the rurally designated Mount Hood Corridor.”

Sunday, June 16, 2024 in Mountain Times

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

July 2, 2025 - Mother Jones

Close-up of park ranger in green jacket and khaki hat looking out at Bryce Canyon National Park red rock formations.

National Parks Layoffs Will Cause Communities to Lose Billions

Thousands of essential park workers were laid off this week, just before the busy spring break season.

February 18, 2025 - National Parks Traveler

Paved walking path next to canal in The Woodlands, Texas with office buildings in background.

Retro-silient?: America’s First “Eco-burb,” The Woodlands Turns 50

A master-planned community north of Houston offers lessons on green infrastructure and resilient design, but falls short of its founder’s lofty affordability and walkability goals.

February 19, 2025 - Greg Flisram

Screenshot of shade map of Buffalo, New York with legend.

Test News Post 1

This is a summary

0 seconds ago - 2TheAdvocate.com

Red 1972 Ford Pinto with black racing stripes on display with man sitting in driver's seat.

Analysis: Cybertruck Fatality Rate Far Exceeds That of Ford Pinto

The Tesla Cybertruck was recalled seven times last year.

18 minutes ago - Mother Jones

test alt text

Test News Headline 46

Test for the image on the front page.

March 5 - Cleantech blog