1. When calculations result in a fraction, the fraction shall be rounded to the nearest whole number as follows:

2. Calculating Base Density. Base density is calculated by multiplying the gross site area by the upper limit of units or lots allowed within the zone. For example, in the R-5 zone, where the density range allows up to five dwelling units per acre:

4.3 acres gross site area x 5 units per acre = 21.5 (rounded up to 22)

3. Calculating Minimum Density. Minimum density is calculated by multiplying the gross site area by the lower limit of units or lots allowed within the zone. For example, in the R-5 zone, where the density range allows as few as four dwelling units per acre:

4.3 acres gross site area x 4 units per acre = 17.2 (rounded down to 17)

4. Each lot shall meet the requirements established in Chapter 18.07 ACC for lot area, dimensions, setbacks, and other development standards.

5. Where a proposed area for subdivision cannot meet the minimum density due to encumbrance by critical areas, critical area buffers, or other similar types of features that preclude development, the applicant may seek to deviate from the minimum density which will be reviewed as an administrative decision as part of the subdivision application. If the applicant seeks a variance from the development standards in Chapter 18.07 ACC the variance shall be processed utilizing the provisions of ACC 18.70.010. Alterations of a critical area or its buffer shall be processed in accordance with Chapter 16.10 ACC. Compliance with the density requirements of the underlying zone shall not be used as justification for alteration of a critical area.