Accessory Dwellings

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

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.

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December 23, 2016 · Leave a comment

Lisa Lonstron’s Other House: A Rooming House

While interviewing more than 60 ADU Homeowners for the ADU Case Studies project, I came across several different ways that people use their ADUs. I heard time and time again that ADUs provide housing flexibility and give their owners additional rental options as their life circumstances change. ADU owners can Rent One, Both, or Neither. But I’d always assumed that when an owner decided to rent out either their house or ADU they’d be renting it to a single household. Then I got to talking to Lisa Lonstron who lives in her basement ADU. Her other house – the one she lived in before she turned her basement into her apartment – is a rooming house.

December 16, 2016 · Leave a comment

Natalie & Justin Strom’s ADU: Two Bathrooms & An Attic

Major design considerations for Natalie and Justin Strom included creating a feeling that their ADU is more like a single family home than an ADU and fitting the ADU into the aesthetic of the traditional neighborhood while bringing in modern elements in the interior. It was also important to Justin and Natalie that the design be flexible enough to allow for multiple use and that they utilize sustainable and energy efficient building materials and techniques.

December 9, 2016 · Leave a comment

Catherine Butler’s ADU: Two Bathrooms, Please

Quick Facts Setting: urban Neighborhood: Rose City Park, Portland, OR Type: stand-alone detached unit (new construction) Use: owner’s residence Square Footage: 800 Year Built: 2015 Owners: Catherine Butler Designer: Dave Spitzer of ADU PDX … Continue reading

November 25, 2016 · Leave a comment

Sharon Nielson, Keith Pitt, & Stephanie Mix’s ADU: A Miniature Mansion

Because Keith & Stephanie’s home is located in an historic district and their garage was considered a contributing structure, they had a few additional design considerations. They were required to go through a Type II Design Review and retain two walls of the existing garage.The guiding principle for this project is to build a miniature Irvington home with all the features.

October 21, 2016 · 2 Comments

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 · Leave a comment

Sheila Butler’s ADU: From Shack to Guesthouse

Sheila Butler and her husband Brad first learned about ADUs when they purchased a piece of property that had a half-built shell in the backyard. The previous owners had begun construction of a guesthouse and never finished the project.

September 23, 2016 · 1 Comment

Steve Snyder & Jackie Ellenz’s ADU: An Energy-Efficient Guest House

For Jackie and Steve, there were lots of good reasons to build an ADU. They like the idea of supporting density and infill and they’re also committed to energy-efficiency. Greg is especially interested in how building technology can help us ameliorate climate change.

September 9, 2016 · 2 Comments

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 · Leave a comment

Victor & Kendra Duong’s ADU: Doubling Rental Opportunities

Editor’s note: this ADU is featured on the upcoming ADU Tour

Kendra and Victor Duong, a wife and husband architecture team, have always dreamed of one day designing their own ADU. In 2015 they built an ADU in the backyard of their existing rental property.

August 12, 2016 · 4 Comments

Ray Chirgwin’s ADU: Carlton Street ADU

Ray Chirgwin first learned about accessory dwellings through his work as a licensed architect. He had familiarized himself with Portland’s zoning code, so he knew that ADUs are allowed by right in Portland and was familiar with their requirements. As Ray and Natalie explored design criteria for their ADU, they landed on a design that allowed them to have a living space above and a shop below.

July 29, 2016 · 1 Comment

Lisa Florentino & Patrick Kernan’s ADU: An Asian-Mexican-Pineapple Chalet

To create their ADU, Lisa and Patrick tore their 2-car garage down completely and built from the ground up with a brand new foundation. But, of course, this happened in typical Brad Bloom style, meaning that as he deconstructed the garage, he salvaged everything he possibility could for reuse in the new space.

July 15, 2016 · Leave a comment

Marenda Chamberlin & Heidi Lohman’s ADU: A Bright, Modern Loft

As Marenda and Heidi made plans for their ADU, they decided they wanted to do most of the finish work themselves. They contracted with Dan Lajoie of Departure Design – the designer of the Wine Lovers’ ADU they liked so much. They also brought Holly Huntley of environs on board to build the shell of the ADU.

June 24, 2016 · 2 Comments

Stew & Lisa Hulick’s ADU: Thinking Outside (& Inside) the Box

Lisa and Stew Hulick live in the primary dwelling and they currently rent their ADU out as a short-term rental, which wasn’t their original plan. While they were designing their ADU they anticipated that it would be a long-term rental.

June 3, 2016 · 3 Comments

Satish’s ADU: A Backyard Landlord Cottage

These days Satish and his partner Jeff have homes in Portland and San Francisco and split their time between the two cities. As Satish did online research and learned more about the housing flexibility created by ADUs, it occurred to them that they could create a landlord suite in the backyard of their Portland home.

May 13, 2016 · 1 Comment

Lisa Lonstron’s ADU: An Artistic Basement Apartment

Lisa took out a home equity line of credit to fund her basement ADU and supplemented it with a portion of each month’s income from her employment. However, many of the finishing touches were a labor of love. Lisa’s key design consideration was staying on budget while using creative design and décor to make it interesting.

April 22, 2016 · 5 Comments

Rambo Halpern’s ADU: An New Old-Fashioned Carriage House

Editor’s note: this ADU is featured on the upcoming ADU Tour…. As he began designing his old-fashioned new home, Rambo kept a few key design criteria in mind for his carriage house. He knew he wanted it to be detached, to have good sound separation from the garage, and to mimic the architecture of the house.

April 1, 2016 · 1 Comment

Tatiana & Rafael Xenelis-Medoza’s ADU: A Hidden Gem

As Tatiana and her husband Rafael looked for a new home, accommodating an ADU was a key criterion. As Tatiana and her husband Rafael looked for a new home, accommodating an ADU was a key criterion. For Tatiana’s expert tips check out How to Find a Property with ADU Potential.

Xenelis-Mendoza ADU from Street
Xenelis-Mendoza ADU from Street
“We were looking for a house with the potential for an ADU. This particular property is a corner lot and it has a backyard that was accessible from the side street. The house sat and faced forward on one street and the new door from the ADU is accessible from the corner street.” – Tatiana Xenelis-Mendoza
The house they purchased in Portland’s Portsmouth neighborhood had potential for a basement ADU, with one major caveat: they didn’t have the code-required ceiling height of 6’-8” for a basement ADU.

March 11, 2016 · 1 Comment

Barbara Gundle’s ADU: A 2-Story Garage Conversion

As Barbara worked with Jack Barnes to begin noodling through the design considerations for her guest house, they decided to work with the existing conditions whenever possible. Working within the existing shell was both an efficient use of materials and a way to avoid possible complications from the historic design review process.

February 19, 2016 · 12 Comments

Nancy Abens’ ADU: A Cluster & A Courtyard

Quick Facts Setting: urban Neighborhood: Grant Park, Portland, OR Type: detached new construction Use: owner’s mother’s primary residence Square Footage: 450 Year Built: 2015 Owners: Nancy Abens, Maggie Abens, Scott Bailey Designer: Confluence … Continue reading

January 29, 2016 · Leave a comment

Susan Eliot’s ADU: Two Stories & A Mezzanine Office

Susan was looking to create financial freedom for herself as a single, retired woman. The idea of going into retirement with no mortgage payment – by having the rent from the main house cover the mortgage on both the main house and ADU – was very appealing.

January 8, 2016 · 16 Comments

ADU Case Studies 2016 Preview

Here’s what you can expect in 2016:

We’ll be sharing 20 brand new case studies of real projects. We’ll also be bringing you a set of profiles of Designers, Design-Builders, and Builders. Finally, I’ll be sharing a set of posts that address some themes I noticed as I talked with more than 80 people about their experiences creating ADUs.

December 23, 2015 · 5 Comments

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 · 5 Comments

John & Stephani Hayden’s ADU: An Expertly Executed Basement Conversion

John and his wife Stephani decided to use their savings to purchase a house with potential for a basement ADU. This investment would provide flexibility in terms of both their finances and their housing options.

May 22, 2015 · 12 Comments

Bob & Adrienne Stacey’s Future ADU: Well-Planned Beforehand

Adrienne and Bob developed a creative multi-generational housing solution that will allow them to share space with their daughter, son-in-law, and grandkids, while operating a home-based business. They knew they couldn’t have an official fully self-contained accessory dwelling unit as long as Adrienne is operating her pottery studio. However, when Adrienne retires from teaching, the plan is to renovate the addition to make it officially an ADU by adding a kitchen. In the meantime, they knew that as long as they were sharing the house with their family members, it would be no problem to have the addition dependent upon the kitchen in the primary dwelling.

May 21, 2015 · 4 Comments

Nan Haemer’s ADU: Crepe Myrtle Cottage

Nan Haemer’s neighbor convinced her to build an ADU on her property and she spent the next several months salvaging materials at the nearby ReBuilding Center.

February 4, 2015 · 12 Comments

Regan Gray & George Okulitch’s ADU: A Super-Efficient ADU

Regan Gray and her husband George Okulitch were looking for a way to increase the value of their rental property and landed on building an ADU on the alley in the backyard. Regan likes that with the ADU they created more housing without changing the look and character of the neighborhood.

January 21, 2015 · 4 Comments

Amanda Punton & Das Chapin’s ADU: Starting in the ADU

Quick Facts Setting: urban Neighborhood: Buckman, Portland, OR Type: daylight walk-out basement Use: long-term rental Square Footage: 700 Year Built: 1899 Year Basement Converted to ADU: 2013 Owners: Amanda Punton Designer-Builder: Das Chapin & Amanda … Continue reading

January 7, 2015 · 3 Comments

Billy Hines’ ADU: Modernizing the Carriage House

The first time Billy Hines saw his three bedroom house in Portland’s Alberta Arts District, he decided that someday he’d make the old carriage house into an apartment. In 2006 he went through the process of converting the existing accessory structure into a permitted ADU.

December 17, 2014 · 5 Comments

Blake Clark & Sabina Chen’s ADU: A Basement Remodel

Blake and Sabina’s decided to convert their basement into an ADU in case their family members wanted to move in. But with an out-of-state job offer on the table, they ended up remodeling both the house and the ADU to be rentals.

November 30, 2014 · 6 Comments

Kristy Lakin’s ADU Community: Woodstock Gardens

There are a handful of developers who are using ADUs as part of their toolkit to create unique housing options. Kristy Lakin is one of these developers. She is currently constructing Woodstock Gardents, a pocket community with three primary dwellings, each with its own ADU. Kristy explains that her interest in developing small housing options like these comes from an interest in creating additional housing without compromising neighborhood character.

October 22, 2014 · 13 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 · 6 Comments

James Michelinie & Kyra Routon’s ADU: A Starter Home

James Michelinie & Kyra Routon first learned about ADUs when they were house hunting as newlyweds. They’d been renting a house in the Alberta Arts District for the past two years and they were looking for a property they could afford in a neighborhood they loved. They ended up purchasing the house they were renting and building an ADU in the backyard, which they now live in.

September 10, 2014 · 7 Comments

Kathleen Pequeño’s ADU: La Casita & La Casota

The old woodshop on Kathleen Pequeño’s property had “a sense of being useful.” It took a lot of work, but she turned it into a nice small house.

August 22, 2014 · 1 Comment

Francie & Michael Royce’s ADU: A Retirement Plan

Francie and Michael had three primary design criteria for their ADU. First, it had to be easy to maintain. Second, it had to be sustainable – both financially and environmentally. Finally, it had to be a pleasant space to call home.

August 15, 2014 · 1 Comment

Katharine Lawrence & Charlie Weiss’ ADU: Third Time’s a Charmer

The economics of a rentable space were appealing to Charlie and his partner Katharine, so when the couple built their own home they designed it to include an apartment. They’ve now included ADUs in two more homes they’ve built and they’re grateful that Portland’s policies now support the creation of ADUs.

August 1, 2014 · 2 Comments

Robert Albano’s ADU: 2 Units for Aging-In-Place

Accessibility, sociability, rentability, and sustainability were driving factors for their design. The focus of the design was aging-in-place for both dwellings. A secondary goal was energy-efficiency so that the dwellings would be less expensive to heat and cool. They insulated the units with R-40 walls and an R-60 roof. Tight air sealing was also important and they ultimately achieved 2.2 Air Changes per Hour (ACH).

July 25, 2014 · 1 Comment

Jane Doe’s ADU: A Second Home on a Tight Budget

Jane says her greatest inspiration was to have a flexible place which she could live in herself or rent out to family or tenants. In order to fund construction of the ADU, Jane refinanced her car, sold stock, worked, and scraped money together.

July 18, 2014 · 5 Comments

Bonnie & Larry Dalton’s ADU: Two Kitchens, Please

When Bonnie Dalton was younger, her grandma lived in a family owned ADU. So when Bonnie was older and her husband’s parents needed a little extra support, Bonnie naturally thought of creating an ADU at her own house.

July 11, 2014 · 4 Comments

Cheryl & Jim Levie: Recreating a Period Piece

Cheryl and Jim Levie of Ashland, Oregon transformed an old chicken coop into a nice little guest house. But the fact that their home was in a historic district caused some complications along the way.

July 4, 2014 · 2 Comments

Joe Hermanson’s ADU: A Daylight Basement Rental

Joe wanted to provide a private entrance for his tenants. The ADU has its own walkway and stairs on the side of the house, so it looks and feels separate from the rest of the house. There were a few challenges in designing and building the ADU; however, they were fairly easy to overcome.

June 27, 2014 · 1 Comment

Bob & Jenny Harris’ ADU: A Mother-In-Law Wing

Bob & Jenny Harris had to jump through a lot of hoops to add a wing with a unit for Jenny’s mom, but it’s worked out. The family stays connected, but Jenny’s mom enjoys some independence too.

June 20, 2014 · 2 Comments

Dan Gray’s ADU: A Retreat Above the Garage

Dan Gray was used to living in the mountains with lots of room around, so when he built his Ashland ADU, he put it above the crowd.

June 13, 2014 · Leave a comment

Dennis & Stephanie Martin’s SDU: Trading Places with Our Daughter

Dennis & Stephanie Martin’s ADU has helped their extended family stay together through life changes.

June 6, 2014 · 5 Comments

Don Golden & Edith Casterline’s ADU: A Front Yard Cottage

Don Golden and his wife Edith Casterline built an ADU an unusually public place: their front yard. The new structure serves three main functions: generating rental income, giving Don the woodshop he wants, and bringing activity back to the street.

May 30, 2014 · 10 Comments

Rex Burkholder & Lydia Rich’s ADU: Own Two, Rent Both

Rex and Lydia owned a house with a garage that was falling apart. They decided that rather than rebuilding “a home for a car,” they would create an ADU in their backyard.

May 23, 2014 · 8 Comments

Heidi Rose’s ADU: A Home for My Sister

Heidi Rose first learned about ADUs because she was determined to figure out how she could build a home for her sister. Her twin sister was living in Seattle with her two kids and going through a divorce, so Heidi went to the City of Portland’s permitting office to explore alternative housing options. Heidi discovered that in the city of Portland an accessory dwelling unit up to 800 square feet is allowed by right on a single-family lot in most neighborhoods.

May 15, 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

Paz Pozarycki’s ADU: Taking It Down a Notch

Paz and his business partner, Katharina Grad Steinmeyer, have recently completed three UDUs (a twist on the ADU acronym which stands for Urban Dwelling Unit). Their new design firm UDU Design LLC has been inspired by the small housing movement and the need for aging-in-place design.

May 2, 2014 · Leave a comment

Caleb & Tori Bruce’s ADU: Existing Home Becomes Secondary Dwelling

As a builder, contractor, and cabinet maker, Caleb Bruce builds boxes for a living, but he has also developed a knack for out-of-the-box thinking. Here’s the story of how Caleb turned an existing house into a secondary dwelling (or an accessory dwelling as we call them in Portland, OR).

April 25, 2014 · 1 Comment
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