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1. What are Site Capacity Calculations?

Site Capacity Calculations determine the intensity of development permitted on site. The calculations determine the maximum number of dwelling units for a residential development or the maximum amount of floor area and/or impervious surface area for a nonresidential development.

2. When are Site Capacity Calculations required?

Site Capacity Calculations are required when a proposed development meets one the applicability requirements found in Chapter 151: Unified Development Ordinance

Section 151.070 and 151.071

3. Is a consultant required to perform these calculations?

Site Capacity Calculations are designed to be prepared by the applicant. However, assistance is available from the Zoning and Development Services Division at 847-377-2600.

4. What information should I have to prepare these calculations?

The following documents and/or information should be available when preparing the calculations:

- Plat of survey of the property showing the legal boundaries and area of the property.

- The types and extent of natural resources (see below) present on the property.

- The maximum density (residential development), or the floor area factor and impervious surface ratio (nonresidential development). These are found in the Density and Dimensional Standard Tables in Chapter 151: UDO

Section 151.125(1) - 151.125(5)

5. Is there a worksheet that will assist in preparing these calculations?

A worksheet has been prepared to assist the preparation of Site Capacity Calculations. Learn more the Site Capacity Calculations page.