Oregon Administrative Rules
Chapter 660 - LAND CONSERVATION AND DEVELOPMENT DEPARTMENT
Division 7 - METROPOLITAN HOUSING
Section 660-007-0045 - Computation of Buildable Lands

Universal Citation: OR Admin Rules 660-007-0045

Current through Register Vol. 63, No. 9, September 1, 2024

(1) The local buildable lands inventory must document the amount of buildable land in each residential plan designation.

(2) The Buildable Land Inventory (BLI): The mix and density standards of OAR 660-007-0030, 660-007-0035 and 660-007-0037 apply to land in a buildable land inventory required by OAR 660-007-0010, as modified herein. Except as provided below, the buildable land inventory at each jurisdiction's choice shall either be based on land in a residential plan/zone designation within the jurisdiction at the time of periodic review or based on the jurisdiction BLI at the time of acknowledgment as updated. Each jurisdiction must include in its computations all plan and/or zone changes involving residential land which that jurisdiction made since acknowledgment. A jurisdiction need not include plan and/or zone changes made by another jurisdiction before annexation to a city. The adjustment of the BLI at the time of acknowledgment shall:

(a) Include changes in zoning ordinances or zoning designations on residential planned land if allowed densities are changed;

(b) Include changes in planning or zoning designations either to or from residential use. A city shall include changes to annexed or incorporated land if the city changed type or density or the plan/zone designation after annexation or incorporation;

(c) The county and one or more cities affected by annexations or incorporations may consolidate buildable land inventories. A single calculation of mix and density may be prepared. Jurisdictions which consolidate their buildable lands inventories shall conduct their periodic review simultaneously;

(d) A new density standard shall be calculated when annexation, incorporation or consolidation results in mixing two or more density standards (OAR 660-007-0035). The calculation shall be made as follows:
(A)
(i) BLI Acres x 6 Units/Acre = Num. of Units;

(ii) BLI Acres x 8 Units/Acre = Num. of Units;

(iii) BLI Acres x 10 Units/Acre = Num. of Units;

(iv) Total Acres (TA) - Total Units (TU).

(B) Total units divided by Total Acres = New Density Standard;

(C) Example:
(i) Cities A and B have 100 acres and a 6-unit-per-acre standard: (100 x 6 = 600 units); City B has 300 acres and a 10-unit-per-acre standard: (300 x 10 = 3000 units); County has 200 acres and an 8-unit-per-acre standard: (200 x 08 = 1600 units); Total acres = 600 - Total Units = 5200.

(ii) 5200 units divided by 600 acres = 8.66 units per acre standard.

(3) Mix and Density Calculation: The housing units allowed by the plan/zone designations at periodic review, except as modified by section (2) of this rule, shall be used to calculate the mix and density. The number of units allowed by the plan/zone designations at the time of development shall be used for developed residential land.

Stat. Auth.: ORS 197.040

Stats. Implemented: ORS 197.295 - 197.314 & 197.475 - 197.490

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