Sunday, December 11, 2022

City of Eugene Pre-Approved ADU Library

 
"The Reach," an ADU design by Aligned Architecture (photo by Mike Dean)

I appreciate receiving AIA Oregon’s Thursdays @ Three emailed newsletter each week, as it often includes news of events or programs I otherwise would not be aware of. Last Thursday’s edition was no exception as it brought to my attention the City of Eugene’s Pre-Approved Accessory Dwelling Unit (ADU) Program.
 
The City intends its ADU program to “significantly and thoughtfully reduce barriers to housing by fast-tracking the permitting process.” It does this by supplying free or low-cost ADU plans developed by local architects. Currently, there are three pre-approved plans in the City’s pre-approved ADU library. The City has already reviewed these designs for compliance with the building code, so owners/builders save time and money. The pre-approved designs are:
Eugene officials are seeking more, calling on additional entries from other designers. The goal is to provide a wide variety of plan types and styles, suitable for property owners of varying means and needs.
 
An ADU is a secondary housing unit located on a single-family residential lot. Some ADUs are detached, and variously referred to as backyard cottages, granny flats, or laneway houses. The City of Eugene ADU Program facilitates the construction of these detached types. Some ADUs are conversions of existing garages or workshops. Additions to the primary residence on the lot or conversions of basements or other parts of the house are still other ADU types. What all ADUs have in common is that they are accessory to and significantly smaller than the average house in the U.S.
 
The City of Eugene is just one of many municipalities across North America that have or are in the process of revising their development regulations to encourage the addition of ADUs within established residential neighborhoods (in Eugene’s case, the impetus is also a need to comply with State of Oregon mandates intended to make the path toward the development of ADUs less onerous).
 
ADUs make sense because most of our legacy housing stock consists of homes that do not reflect current demographics. 62 percent of U.S. households today are comprised of 1-2 persons; only 38 percent of residences house the traditional nuclear family of parents with multiple children. Paradoxically, the average number of people in American households has declined even as the median size of a new home has doubled since the 1970s. We need housing types that reflect the full diversity of our community: people of all ages and abilities, renters, homeowners, families, childless couples, and singles. The housing needs of such a varied population warrant the introduction of a correspondingly diverse range of housing options. ADUs can be one of those options.
 
ADUs also provide housing with a small environmental footprint when compared with traditional single-family detached homes. If introduced within established neighborhoods, ADUs eliminate the demand for expanding infrastructure to the fringes of the developed metropolitan area.
 
ADUs are not without their critics or shortcomings. New ADU construction is not inexpensive, and too often property owners construct them as short-term rentals (e.g. Airbnb) rather than as affordable housing alternatives. On balance though, easing the path toward increasing the stock of ADUs is desirable because fostering housing innovation, as opposed to stifling it, is necessary if we are to have any hope of addressing the affordability crisis.

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