Accessory Dwellings

A one-stop source about accessory dwelling units, multigenerational homes, laneway houses, ADUs, granny flats, in-law units…

One Year In, Are Tiny Houses on Wheels the New ADU in Portland?

We are one year into installing RV hookup infrastructure on residential properties in Portland for homeowners who are adding a mobile dwelling. We do this work through a company called Tiny Hookups LLC. This company was formed on the heels of the legalization of RVs (and tiny houses on wheels, which are classified as RVs under Oregon state law) as a legal dwelling option in Portland, Oregon, in 2021. 

January 11, 2023 · 2 Comments

Roger & Martha’s tiny house — economical, artistic, and prefab

Prefab dwellings seem like a great way to create ADUs — but they’re not as common as you might think. One Portland resident shows how it can work.

May 20, 2020 · 4 Comments

Diane Owen’s ADU: A Carriage House at My Daughter’s Place

A few years ago, Diane Owen was sharing a house in Denver, CO with her daughter Mara, and Mara’s partner Andrew. Diane’s one bedroom, one bathroom multi-generational household also included three dogs, so it was a full house! Diane had been living with Mara and Andrew for three years and they got along really well, but there were moments that a little more wiggle room would be nice.

December 22, 2019

Bertha’s ADU: A Tiny Cottage in My Son’s Backyard

Bertha and her son John had always been fairly close, but they lived their separate lives in different parts of St Petersburg, Florida. Each of them owned their own home and neither had plans to sell, but all that changed in 2016 when Bertha received a surprise offer from someone who wanted to buy her house.

December 15, 2019 · 2 Comments

Asmund & Jenny’s ADU

Asmund and Jenny had been considering building an ADU for quite a while and finally decided to take the plunge at the end of 2016. They were drawn by the potential for passive income, the need for more space for their growing family and guests, and they wanted to lock in the SDC fee waiver benefit before its scheduled expiration. They were particularly drawn to the short–term rental model to maintain the most flexibility.

July 3, 2018 · 6 Comments

Deborah Kelly’s ADU: Mossy Cobbles

This week’s ADU Case Study was written and contributed by Deborah Kelly, the owner of an ADU called Mossy Cobbles. Deborah worked with her son, Justin S. Kelly, who is an architect and engineer, to design the cottage for Deborah’s mother to occupy when she lived in Portland for half the year. It was constructed by the next door neighbor, Tony Kikes with hardscaping by another friend and neighbor, Steve Carruthers. The cottage is now available as a short-term rental.

December 23, 2016

Sylvia Allen & Martha Shelley’s ADU: A Home for A Friend

What convinced Sylvia and her wife Martha to create an ADU on their own double lot was the desire to help Marion, an elderly friend who lived in Florida who needed daily assistance. So the three of them agreed that the most practical plan was for Sylvia and Martha to build an attached apartment so that Marion could live with them.

October 14, 2016 · 1 Comment

Tom Hudson’s ADU: The Newest House on the Block

Tom Hudson worked with Willie Dean of Ground Up Design Works to design an ADU in his backyard. His has served as his own general contractor for the project, doing most of the work himself and hiring out projects to local subcontractors.

August 26, 2016

An economical detached bedroom for Dad

Our guest correspondent created a “detached bedroom” to help her dad age in place. It’s simpler and less expensive than a full-blown ADU, but her thoughtful approach is something everyone can learn from.

June 14, 2016

Joan Grimm & Rita Haberman’s ADU: Carving-Out a Studio

Joan and Rita’s carve-out ADU entailed creating a new entry on the north side of their house, and separating the ADU from the main house by building a wall in the former hallway leading to an existing full bath and the underutilized bedroom. The kitchen-dining-living area is the located in the front of the original house with a large bank of windows offering natural daylight and garden views, and the more private bed and bath areas are located toward the back.

May 25, 2015 · 6 Comments

Isabel Johnson & Brad Creel’s ADU: A Backyard Guest Room

She anticipated that once it was complete, the backyard cottage would serve as a guest space for visiting family. However, she decided to go through the process of converting the garage to an ADU officially so that she could keep her options open. She liked the flexibility of being able to rent out the little space.

September 24, 2014 · 7 Comments

Tom Hudson’s ADU: A Sneak Peek at an ADU Under Construction

Tom Hudson broke ground on his backyard cottage in March 2014. The concrete slab is finished and the underground plumbing has been stubbed out for connection once the framing is complete. Tom anticipates that his wee home will be move-in-ready by the end of 2014. Meanwhile, his under-construction ADU will be included on the ADU Tour on June 1 so that people interested in creating an ADU on their own property can see one in progress.

May 9, 2014 · 2 Comments

Stephanie & Sam Dyer’s ADU: A Guest Cottage Off Mississippi Ave

Although their parents would have “first dibs,” the couple realized that they could also rent out the space through VRBO when neither set of parents were in town. Stephanie and Sam were interested in this additional income potential and both sets of parents liked the investment potential of the property.

April 18, 2014 · 7 Comments

Joe Wachunas & Naomi Cole’s ADU: Reworking the Garage

“I was surprised how easy it is to increase density on a single-family lot and still feel like there’s plenty of space,” says Naomi. “The entire process was one of the most gratifying experiences I’ve had.”

April 4, 2014 · 3 Comments

Lissa & Matt’s ADU: Planning for Our Sons’ Future

Matt and Lissa were building a new home and realized that creating an apartment over the garage was a good opportunity to add extra living space. The ADU could generate rental income and create flexibility as their housing needs changed. For now the ADU serves as a rental, but it could eventually be a home for their special needs son if needed.

January 31, 2014 · 12 Comments

Tiny Dwellings in Portlandia? (video)

The IFC show Portlandia has garned lots of attention in Portland. It even inspired a fan contest in which Portland residents submitted their own ‘Portlandia’ inspired videos. This hilarious video … Continue reading

August 28, 2012 · 2 Comments

A Sister-In-Law House

Walt Quade has a knack for figuring out a work-around. The design and construction of his own ADU provided several opportunities to hone this skill. When he and his wife … Continue reading

February 14, 2012 · 3 Comments

Reflections on Six Years in “temporary housing”: a mobile detached bedroom

From 2003 to 2009, I lived in a tiny home on wheels located in Iowa City. I built the home with Jay Shafer, proprietor of Tumbleweed Tiny House Company. The … Continue reading

January 26, 2012

Detached Bedroom as Tiny Home

A few years ago I had the opportunity for my mother-in-law to move in with my family in our NE Portland home. We didn’t have space in our home for … Continue reading

November 29, 2011 · 41 Comments