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FY2012 6/15/2011 C.a,.,~ ~a5Nvi3~ B. Methodology and Policy Terms 1. There are five "components" involved in calculating what a new dwelling unit will cost the County in terms of providing public facilities. The components are as follows: a. Demand generators -Staff uses the weighted average of single family and multi- family persons per household (2.72 for FY06) and an average number of students per household (0.53 for FY06) to calculate demand generators (number of people and number of students) associated with a new dwelling unit. b. Service levels -Staff calculates existing service levels for each type of facility for which a cash proffer will be accepted. Examples of service levels are: 5.53 acres of park land per 1,000 people, 2.341ibrary books per person, and 99 square feet of space per elementary school child. (Service levels are calculated annually) Gross cost of public facilities -Staff calculates the gross cost of public facilities. The gross cost is used because a credit (described in (d) below) for anticipated future revenues from a new dwelling unit will be applied against the gross cost. For example, to calculate the gross cost of park facilities, multiply the average persons per dwelling unit by the cost per acre of park land plus improvement cost per acre of park land times the acres per capita. d. Credits -Staff calculates a credit to apply against the gross cost for each public facility. Chesterfield has issued and plans to continue to issue general obligation bonds to finance the construction of public facilities. Residents of new developments will pay real estate taxes to the County and a portion of these taxes will go to help retire this debt. So that new dwelling units are not paying twice (once through payment of a cash proffer and again through real estate taxes) a credit is computed. e. Net cost -Staff calculates the net cost per public facility or maximum cash proffer. This is the gross cost [(B)(1)(c)] per public facility minus the applicable credit [(B)(1)(d)] per public facility. 2. There must be a relationship between the rezoning itself and the need for a public facility. In order to ensure that money proffered by an applicant is used to fund the public facilities necessitated by the development, geographic service areas or districts are established across the County. Since parks, libraries, and fire stations serve the entire County, the geographic service districts for these facilities are determined to be countywide. Rezoning 3