Oregon Administrative Rules
Chapter 660 - LAND CONSERVATION AND DEVELOPMENT DEPARTMENT
Division 38 - SIMPLIFIED URBAN GROWTH BOUNDARY METHOD
Section 660-038-0030 - Residential Land Need
Current through Register Vol. 63, No. 9, September 1, 2024
OAR 660-038-0030 through 660-038-0080 provides steps that a city must take to determine residential land need over the 14-year planning period.
(1) A city that applies the UGB method in this division:
(2) The city must use the most recent final forecast issued by the Portland State University Population Research Center under ORS 195.033 in effect at the time the city initiates a UGB review to forecast the UGB population growth for a 14-year period.
(3) The city must subtract from the forecast population growth the number of persons projected to live in group quarters in the UGB during the planning period. The city shall determine this number by calculating the percentage of the city's population living in group quarters at the last decennial United States Census and subtracting the same percentage from projected population growth. For the purpose of this rule, "group quarters," as defined by the United States Census, are places where people live or stay, in a group living arrangement, which is owned or managed by an entity or organization providing housing or services for the residents.
(4) To determine the gross number of dwelling units needed for the 14-year period, the city must divide the projected growth reduced as determined in section (3) by the persons per household within the city determined at the most recent decennial United States Census.
(5) The city must adjust the gross number of needed dwelling units to account for the vacancy rate projected to occur during the planning period, as follows: Multiply the result calculated in section (4) by the vacancy rate and add the resulting product to the gross number of dwelling units needed. The vacancy rate used shall be five percent plus the portion of the vacancy rate that is comprised of seasonal, recreational, or occasional vacancies within the city, determined at the last decennial United States Census. However, the total vacancy rate used may not exceed 15 percent.
(6) The city must account for projected redevelopment expected to occur in residentially zoned areas, and for mixed use residential development expected to occur in commercially zoned areas, as follows: multiply the result calculated in section (5) by the applicable percentage in subsections (a) through (c) of this section.
(7) The city must account for accessory dwelling units expected to occur during the planning period by multiplying the result calculated in section (5) by the applicable percentage in subsection (a) or (b) of this section:
(8) The city must subtract the numbers determined in sections (6) and (7) from the result calculated in section (5). The resulting number is the identified need for new dwelling units for 14 years.
(9) The city shall accommodate the dwelling unit need identified in section (8):
Stat. Auth.: ORS 197.040, 197A.305, 197A.320 & 197.235
Stats. Implemented: ORS 197A.300, 197A.302, 197A.305, 197A.310, 197A.312, 197A.315, 197A.320 & 197A.325