Accessory Dwellings

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

Tangible Ways You Can Support Space-Efficient Housing

At the Build Small, Live Large Summit on Friday, November 6th, the five panelists in the Space-Efficient Housing Policy Round Table and left the audience with tangible ways they could support space-efficient housing. A member of the audience asked us to make the list available online and we thought that was a great idea, so we’ve obliged. Read on and pick an action item to help us promote small housing choices!

December 11, 2015 · 4 Comments

The Accessory Structures Zoning Code Update Passed

Good News for Detached ADUs It is great to see incremental improvements being made to regulatory ADU codes across the country. Austin, TX recently made some improvements to their ADU … Continue reading

December 2, 2015 · 9 Comments

The Death of Detached ADUs in Portland and What To Do About (Part III)

Commissioner Loretta Smith from Multnomah County, District 2 stepped up last week as the first of Multnomah County Commissioners to speak out against the unfair tax re-MAV issue that has been … Continue reading

November 23, 2015 · 39 Comments

The Accessory Structures Zoning Code Update- The Vote

What seemed to be a ‘slam-dunk’ set of great, proposed code updates for detached ADUs and other accessory structures have experienced yet another potential setback, so to speak. The day before the vote … Continue reading

November 18, 2015 · 6 Comments

The Death of Detached ADUs in Portland and What To Do About (Part II)

(This is Part II of The Death of Detached ADUs in Portland and What To Do About It. Part I, Part III, Part IV, and Part V are also available.) Action Items … Continue reading

November 2, 2015 · 45 Comments

Preview of Some of the ADUs Featured on the Fall, 2015 ADU Tour

The City-wide ADU Tour is just two weeks away.The ADUs on this tour are beautiful and we can’t wait for you see them in person. Here’s a preview of some of the ADUs you’ll be seeing.

October 25, 2015 · 4 Comments

The Death of Detached ADUs in Portland and What To Do About It

(Update: Part II , Part III , Part IV and Part V are also available.) This post is complicated, thick, and heavy – it’s about property taxes. Ick! For the purposes of retaining readers’ interest, I … Continue reading

October 22, 2015 · 123 Comments

Fall 2015 ADU Tour Information

Registration for the November 7th ADU Tour is now live; early bird sales end on October 24th. For those seeking design inspiration for small houses, the ADUs on this upcoming tour are exceptionally beautiful. Here’s a sneak preview of a few of some of them.

September 17, 2015 · 6 Comments

Alan Durning Keynote Speaker at the Fall Build Small Live Large Summit

Conference is Sold Out!  Alan Durning, a long-time sustainability leader in the Northwest, is newly fired up—and for good reason. Since founding Sightline Institute in 1993, he has written more … Continue reading

August 21, 2015 · Leave a comment

Berkeley ADUs and Perceptions of Density

by Alberto Benejam, Based on a report by Sonia-Lynn Abenojar, Alberto Benejam, and Tamar Nativ Throughout the past year, the city of Berkeley, CA has been considering changes to the city’s … Continue reading

August 3, 2015

Accessory Structures Zoning Code Amendments – An Overview and Assessment

Introduction The City of Portland (Bureau of Planning and Sustainability) regularly reviews and updates planning and zoning codes through a process called RICAP (Regulatory Improvement Code Amendment Project). Part of … Continue reading

July 27, 2015 · 12 Comments

Lay Explanation of Conventional ADU Financing Options

Financing is, by far, the biggest barrier for most homeowners seeking to build an ADU on their property. Recently, I was trying to gain some clarification about three conventional loan products that can be used to help fund the construction of an ADU: First Mortgage Cash Out Refinance- taking out extra money when refinancing your ‘first mortgage’ .

June 27, 2015 · 5 Comments

Follow up to the Spring, 2015 ADU Tour

The spring, 2015 ADU Tour was amazing! Here’s a few snapshots that will provide a sense of what the event was like.

On Friday evening, 349 people attended a 3-hour ADU 101 workshop.

June 2, 2015 · Leave a comment

Save the Date for the 2015 Build Small Live Large Summit: Friday, Nov. 6!

Conference is Sold Out!  The Build Small Live Large Summit is back by popular demand! This unique, one-day event will convene leading small home designers, builders, developers, realtors and policy … Continue reading

June 1, 2015 · 1 Comment

Real estate rage in Portland! Or, ode on a purple shed

Up for rent in Portland, February 2015: a tiny purple structure in someone’s backyard, apparently a converted garden shed. At 165 square feet, it had the same area of 5 … Continue reading

May 27, 2015 · 10 Comments

Spring, 2015 ADU Tour – Final Week Updates

*Update as of 6/3/2015. Read a follow up post about the tour here: https://accessorydwellings.org/2015/06/02/follow-up-to-the-spring-2015-adu-tour/*

May 24, 2015 · 2 Comments

Updates for the Spring, 2015, ADU Tour

The city-wide ADU tour is almost here. There will be 12 ADUs to tour in NE Portland on Saturday, May 30th, and 13 ADUs in Portland SE on Sunday.

The inaugural ADU Tour in the spring of 2014 sold out a week early at 850 tickets, and drew attendees from across the country, showing the surging interest in small housing.

April 1, 2015 · 5 Comments

Ten ADU Aspirations for 2015. Let the countdown begin!

As we all know, New Years is a time to conjure up lofty ideas.  Here are a few great ideas that we, the editors of accessorydwellings.org, probably won’t have the time to … Continue reading

December 31, 2014 · Leave a comment

SAVE THE DATE—Portland’s 2nd Annual Accessory Dwelling Unit Tour – Spring, 2015

SAVE THE DATE: May 29th- May 31st!

I’m very excited to announce Build Small, Live Large: Portland’s Accessory Dwelling Unit Tour – Spring, 2015.

December 23, 2014 · 4 Comments

Innovative “Junior” accessory dwelling unit Zoning Ordinance Passed in Novato, California

Novato, California will allow a simpler, lower-cost style of accessory dwelling unit starting in 2015 — the JADU or “junior accessory dwelling unit.”

December 14, 2014 · 2 Comments

Model Code for Accessory Dwelling Units

Practically every week, we learn of a new US city or county that is adopting or revisiting zoning code language on accessory dwelling units (ADUs). Some are thinking of allowing … Continue reading

November 25, 2014 · 16 Comments

Garage apartments in Houston

Houston, Texas has a long tradition of accessory dwelling units. It also has a unique lack of zoning rules. Could it be the next hotbed of ADU creativity?

November 19, 2014 · 4 Comments

Guide to financing an accessory dwelling unit

Here is nicely formatted summary to the ways ADUs are being financed in Portland today. Even if you don’t live in the area, it should provide some ideas and precedents you can use. Enjoy!

November 3, 2014 · 5 Comments

ADUs and Condos: Separating Ownership

Q. How is it that the accessory dwelling unit pictured below is being sold separately from the primary home on the same lot? A. It’s legally structured as a condominium. … Continue reading

October 7, 2014 · 17 Comments

New ADU Class for Realtors

Following on the heels of the Value it Green tour in early September, Earth Advantage will be offering a new class called All About ADUs – A Primer Course for Brokers. … Continue reading

September 19, 2014 · Leave a comment

Summing up ADU research: are accessory dwelling units as great, or as horrible, as people say?

Collected research about accessory dwelling units (AKA granny flats, laneway houses, in-law units, etc) suggests they have many potential benefits, and two common arguments “against” are unsupported.

September 17, 2014 · 13 Comments

Accessory dwelling units: what further research should be done?

ADUs are especially promising as environmentally sensitive and affordable housing, and this potential should be investigated in detail.

September 3, 2014 · 4 Comments

Value it Green Tour Features ADUs

  Join other REALTORs, appraisers and lenders visiting green homes and ADUs across Portland. Have fun with your peers while you’re escorted by experts on buses to and from the … Continue reading

September 3, 2014 · Leave a comment

What are the barriers to ADU development?

Government rules strongly limit the development of ADUs, but they are not the only factor.

August 21, 2014 · 8 Comments

ADU Tour, Spring 2015

We wanted to update readers about the plan for the next ADU Tour. The last ADU tour was a trememdous success, so we’ve decided to run it again next spring. … Continue reading

August 9, 2014 · 5 Comments

Do ADUs provide affordable housing?

If the “grassroots” nature of their development is properly understood, ADUs have a lot of potential to address affordable housing needs.

August 7, 2014 · 17 Comments

How do ADUs contribute to the local economy? (Or, will building an ADU raise my property taxes?)

Will building an ADU raise your property taxes? Very likely yes. Is that a good thing for the community?

July 30, 2014 · 6 Comments

Do accessory dwelling units serve older persons? (Or, who lives in, and owns, ADUs?)

Older persons are expected to benefit from ADUs. Is this happening now, and will it happen more in the future?

July 23, 2014 · 3 Comments

Do ADUs cause neighborhood parking problems?

The single biggest and most specific fear mentioned by ADU opponents is loss of street parking. Is there any evidence on this?

July 16, 2014 · 7 Comments

Repost of Housing Solution: Backyard Cottages Could Add One-Third More Homes to San Francisco

Many cities may claim to allow ADUs in their code, but in fact, their regulations prevent citizens from actually building them. In San Francisco’s case, there are ‘discretionary reviews’ and other … Continue reading

July 14, 2014 · 1 Comment

Are ADUs green housing?

New evidence shows that ADUs have serious potential as environmentally sensitive housing.

July 9, 2014 · 6 Comments

How do ADUs affect property values?

Opponents of ADUs frequently charge they will bring down property values for the whole neighborhood. What is the evidence?

July 2, 2014 · 10 Comments

How much do ADUs cost to build?

Some survey results about ADU costs… and some thoughts about why ADU developers aren’t usually real estate “pros.”

June 25, 2014 · 8 Comments

Do ADUs actually provide housing?

It may seem odd to ask whether a housing form actually provides housing, but it’s a key premise in civic debates about accessory dwelling units.

June 18, 2014 · 4 Comments

A Practitioner’s Guide to Appraising ADUs

Appraisals for ADUs have always been tricky. Here is a new guide to help appraisers, real estate agents, and finance professionals understand current “best practices” for appraising ADUs.

June 16, 2014 · 2 Comments

Why ADUs are hard to study, and confuse nearly everyone

ADUs are a really unusual form of development. This post goes over their special qualities, and explains why a lot of “debate” about ADUs is so repetitive.

June 11, 2014 · 11 Comments

Research and policy about accessory dwelling units: introducing a 13-part series

Which hopes and fears about ADUs are most likely to be true? Explore claims and controversies with new evidence, in this 13-part series, beginning today.

June 4, 2014 · 19 Comments

Follow up on the June 1st ADU Tour

On Sunday, we hosted Build Small, Live Large: Portland’s Accessory Dwelling Unit Tour. Over 500 people signed up for the early bird registration, and by the time 800 people registered five … Continue reading

June 2, 2014 · 1 Comment

Attend Portland’s Inaugural Accessory Dwelling Unit Tour

Update 5/28/14: There’s been a huge amount of interest in attending this tour, which is fantastic. Over 800 people have registered to attend. The tour is sold out, but you can add your … Continue reading

May 18, 2014 · 2 Comments

Repost of Little Pink Houses: Debate Regarding Zoning Laws and Accessory Dwelling Units Getting More and More Relevant

We thought this National Law Review article was interesting because it deals with the legal issues that ADUs confront in municipalities around the US. You can read more about how … Continue reading

May 12, 2014 · Leave a comment

Stradivarius violins and cigar box guitars (Making sense of ADU construction costs)

An experienced developer explains why ADUs have such a wide range of costs, and how to estimate costs for your own project.

May 1, 2014 · 8 Comments

Heard rumors about an ADU Tour?

Well, they’re true. On Sunday, June 1st, in partnership with the City of Portland, Metro, and the Oregon Department of Environmental Quality, Caravan- The Tiny House Hotel, is running Portland’s … Continue reading

March 16, 2014 · Leave a comment

City of Portland ADU Permit Trends

The City of Portland continues to grow its ADU housing stock.  In 2013, there were almost 200 ADU permit applications received, which is about 25% of all single-dwelling permits in Portland.  … Continue reading

March 12, 2014 · 5 Comments

Are Tiny Houses and ADUs the same thing? Not always, but they’re really good friends

Boy, you know it’s been a great day for the website when Carpet Carl tweet-checks it! A few days ago, a post about ADUs by Michael Andersen on bikeportland.org got … Continue reading

March 1, 2014 · 6 Comments

ADU Case Studies Project Launch

In the summer of 2013 Oregon DEQ conducted a survey of Accessory Dwelling Unit (ADU) owners. We received an excellent response from across the state and have published the ADU … Continue reading

December 28, 2013 · 3 Comments