Item C: Eugene Comprehensive Lands Assessment

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Recommendations for Baseline Assumptions ECONorthwest April 2009 Page 14 ? Current technical recommendation for baseline assumption: We are working with the CAC, TAC, and DLCD to develop a recommended baseline assumption about housing mix. ? Data source: The assumption about housing mix could be based on development trends over the 2001 to 2008 period, based on LCOG GIS data and City of Eugene Planning Department’s building permit data. Alternatively, assumption about housing mix could be based on the housing mix for Eugene’s housing stock, shown in point estimates for 1990, 2000, and 2007 from the U.S. Census. Housing density Housing density is the density of housing by structure type, expressed in dwelling units per net or gross acre. Like housing mix, State law requires determination of housing mix based on analysis of data and suggests using analysis of housing density developed over the past five years or since the most recent periodic review, whichever time period is greater, or for a shorter or longer time period. The U.S. Census does not track residential development density. Eugene City staff concluded that data prior to 1996 may not be accurate and consistent enough for an analysis of long-term housing densities. Staff recommends using housing mix based on development between 2001 and 2008 (rather than 1999 to 2008) because changes to the City’s zoning code went into effect in 2001 that affect housing development. Table 4 shows average residential development by structure type for the 2001 to 2008 period. The average density for all residential development over the 2001 to 2008 period was 6.7 dwellings per net acre. Average residential densities ranged from 5.6 dwelling units per net acre for single-family residential to 26.3 for apartments with 20 or more units. These estimates are in the typical range and consistent with previous work by ECONorthwest and others for other cities in Oregon.