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4.1.1 Methods used to estimate residential <br />development capacity of vacant and partially <br />vacant land <br />This section describes the three methods used to estimate residential <br />development capacity of vacant and partially vacant land. The capacity <br />estimate considers the following key characteristics of vacant and partially <br />vacant land: <br />• Comprehensive Plan Designation for LDR, MDR, and HDR land. <br />• Lot size for vacant and partially vacant land. The lot sizes <br />considered are lots smaller than 1 acre, lots of 1 to 5 acres in size, <br />and lots larger than 5 acres. Lot size is considered because smaller <br />lots will require less land set aside for rights-of-way and larger lots <br />will require more land for rights-of-way. Need for land for rights- <br />of-way is accounted for in differing density assumptions, as <br />described in the sections below. <br />Slope of land. The slope categories are less than 5% slope and <br />greater than 5% slope (5% to 30% slope). The slope is considered <br />because development on lands with steeper slopes, especially in <br />LDR, generally occurs at lower densities compared to flat land (e.g. <br />below 5% slope). <br />Elevation of the land. The elevations include below 900 feet and <br />above 900 feet (at or above 900 feet). Elevation is considered <br />because Eugene's development code regulates development above <br />and below 900 feet differently in some areas of the city. <br />The methods used in Eugene's capacity analysis are the same for vacant <br />and partially vacant land except as noted: <br />• Capacity Method 1. This method estimates the capacity on LDR <br />land of all sizes that is flat and below 900 feet, and all MDR and <br />HDR Land. <br />Capacity Method 2. This method estimates the capacity on LDR <br />parcels 1 to 5 acres and larger than 5 acres on land with a slope <br />above 5% or an elevation above 900 feet. <br />Capacity Method 3. This method estimates the capacity on LDR <br />parcels smaller than 1 acre on land with a slope above 5% or an <br />elevation above 900 feet. This method also estimates capacity on <br />LDR partially vacant land parcels 1 to 5 acres with a slope above <br />5%. <br />Part 11 — Eugene Housing Needs Analysis ECONorthwest Page 119 <br />