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Eugene needed housing density and mix ECONorthwest Page <br />A <br />CTUAL AND NEEDED DENSITY AND MIX <br />Appendix A describes the framework for determining whether residential land <br />within the Eugene UGB is sufficient within the context of State planning requirements <br />from Goal 10 (ORS 197.295 to 197.314, ORS 197.475 to 197.490, and OAR 600-008). This <br />memorandum focused on two steps of the residential land need analysis: (1) <br />determining mix and density of existing housing and (2) determining average <br />actual <br />density and mix of housing. These steps are described in Appendix A and Figure <br />needed <br />A-1 (in steps 4 and 5). <br />Actual density and mix <br />ORS 197.296 requires the analysis of housing mix and density to include the past five <br />years or since the most recent periodic review, whichever time period is greater. <br />1 <br />Eugene completed periodic review in 1999. The City, however, made significant <br />changes to the residential densities allowed in its zoning code in August 2001. The <br />period used in ECLA for the analysis of housing density was 2001 to 2008 because <br />residential development prior to 2001 was not subject to the new standards in the <br />zoning code. <br />Housing density <br />Eugene had residential development on 4,727 tax lots had residential development <br />during the 2001 to 2008 period, adding 6,532 dwelling units. Some tax lots had pre- <br />new <br />existing multifamily dwelling units. The average density for all residential development <br />over the 2001 to 2008 period was 7.2 dwellings per net acre. The average housing <br />2 <br />density for each housing type was: <br />5.4 dwelling units per net acre (du/net) for single-family detached <br /> <br />20.2 (du/net) for single-family attached <br /> <br />8.6 (du/net) for structures with 2 to 4 units <br /> <br />24.1 (du/net) for structures with 5 or more units <br /> <br /> <br /> Specifically, ORS 197.296(5) (b) states: “A local government shall make the determination described in paragraph <br />1 <br />(a) of this subsection using a shorter time period than the time period described in paragraph (a) of this subsection if <br />the local government finds that the shorter time period will provide more accurate and reliable data related to <br />housing capacity and need. The shorter time period may not be less than three years.” <br /> The average housing density over the 2001-2008 period (7.2 dwelling units per net acre) was based on a housing <br />2 <br />mix of 69% single-family detached and 31% multifamily housing types. The housing density in the baseline analysis <br />for the 2011-2031 period uses the same housing densities by housing types as in the 2001-2008 period but uses a <br />different housing mix (61% single-family detached and 39% multifamily types). As a result, the average density for <br />all housing types in the baseline analysis assumes more multifamily housing and is slightly higher (7.3 dwelling units <br />per net acre) than the average housing density for the 2001-2008 period (7.2 dwelling units per net acre). <br />PC AIS, p7 <br />