How do I calculate the slope density formula?
First you must calculate the average slope of the property as defined by City Code. Once you have calculated the slope, then apply the appropriate formula for your zoning district as shown in the following example:

Zoning District Minimum Lot Size (Net)
R1-8 L = 43,560 square feet/5.45 - .089 S
R1-20 L = 43,560 square feet/2.20 - .036 S
R1-44 L = 43,560 square feet/1.00 - .016 S

Example Calculation for R1-8 with a slope (S) of 29%

L=Minimum Lot Size Required

S= Slope (as a whole number)

See the complete Slope Formula Handout in the Planning Department Documents

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1. How can I determine what zone my property is in?
2. How do I know if my addition or remodel needs approval by the Site & Architectural Commission?
3. What are the requirements for approving a Site Development Permit (Design review)?
4. I want to add onto my house, how do I apply for a building permit?
5. How do I calculate the slope density formula?
6. What is the allowable fence height?
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