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Community Guide to Development Impact Analysis by Mary Edwards |
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| Introduction | Fiscal | Traffic | Socio-Economic | Environmental | Putting it Together | Cost of Community Services |
The purpose of fiscal impact analysis is to estimate the impact of a development or a land use change on the costs and revenues of governmental units serving the development. The analysis is generally based on the fiscal characteristics of the community— e.g., revenues, expenditures, land values—and characteristics of the development or land use change—e.g., type of land use, distance from central facilities. The analysis enables local governments to estimate the difference between the costs of providing services to a new development and the revenues—taxes and user fees, for example—that will be generated by the development.
Because a fiscal impact analysis is primarily based on an analysis of local government revenues and expenditures, key players on a team to conduct an assessment include the communities clerk or finance officer, the tax assessor and a facilitator to gather additional information from several functions, including public works, emergency services, parks and health and human services.
There are a number of standard approaches to choose from in conducting a fiscal impact analysis, ranging from a per-capita multiplier method to a case study method which relies on local interviews. One consideration in choosing an appropriate method relates to the notion of average costing. There are two basic approaches to assess the cost of services that development imposes on a local government—average costing and marginal costing. Average costing is the simpler more common procedure. It attributes costs to new development according to average cost per unit of service in existing development times the number of units the growth is estimated to create or the demand for that unit. It does not take into account excess or deficient capacity to deliver services, and it assumes that average costs of municipal services will remain stable in the future. Alternatively, marginal costing relies on analysis of the demand and supply relationships for public services. This procedure recognizes that excess and deficient capacity exits in communities. It views growth not in a linear manner, but as a more cyclical process in terms of the impact on expenditures.
The distinction between average and marginal costing is fundamental to fiscal impact analysis. Marginal and average costing approaches may result in dramatically different estimates of fiscal impacts for the same development. This is due to the “lumpy” nature of certain public services, like sewage treatment plants and water supply systems. When such facilities are built in a community, they are typically financed with long-term debt and built with the expectation that they will also serve future population growth in the community. Therefore, the incremental cost of providing the service to one more resident is low. However, these facilities do have a threshold level where surplus capacity is eventually depleted. It is at this point that the new development or new growth requires new infrastructure investment and the marginal cost of serving a new resident may actually be higher than the average cost. The marginal cost approach focuses on defining a community’s marginal response to a new development or land use change through careful attention to existing demand and supply relationships in a community.
This chapter includes two sections. This first details a mixed per-capita, case study approach to estimate community costs and revenues associated with the development and the second outlines the steps to calculate impacts on the local school district.
Data Needs
This chapter takes you through the steps of fiscal impact estimation. The method used here is a hybrid per-capita multiplier and case study approach. It allows for a quick calculation, but acknowledges that a straight average-costing approach is not ideal and builds in a marginal cost dimension.
To use the per capita multiplier method, which is used to calculate all costs and revenues, with the exception of the property taxes, state shared revenues and capital costs associated with the development, you will basically translate population into service costs. The method first requires you to calculate current public service costs on a per-unit basis—per capita and per employee. Service costs are initially apportioned between residential and non-residential development to allow for a more precise accounting of costs. Development costs are then estimated by multiplying per capita costs by the total number of people associated with the development and per employee costs, by the number of workers associated with the development.
Again, the most significant limitation of the straight per capita multiplier approach is that it does not account for excess or deficient capacity. It also assumes that the cost of services for new development is the same as existing; and this is not fully justified in all cases. The modified model detailed here requires you to calculate the operating per-capita costs and revenues associated with development and then to examine your capital facilities using a case study approach to allow for issues of capacity.
This model allows you to examine the fiscal impacts of development if that development were in place in your community today. This approach is intended to make the estimates more meaningful and understandable to citizens and to lessen the need to make assumptions regarding your future fiscal situation. Typical fiscal impact analysis which estimates the future impact of a proposed development requires numerous assumptions as to a community’s future fiscal situation. It requires assumptions as to how your community will grow, how property values will change, how much tax revenue will be generated by the development, the timing of the development and how the community will change with the development. It also requires an estimate of a baseline scenario or a assumed future without the development to allow for a comparison with and without development. In contrast, the method detailed below allows you to use your current budget and minimize assumptions that must be made.
The process entails nine steps. The analysis is straight-forward and data requirements are minimal. You must begin by describing the development and its potential impacts in terms of new population and new employees. Then, you will estimate the expenditures associated with the development using per capita averages as a way to make estimations. Then, you will estimate revenues to be generated by the development using various approaches. Lastly, you will estimate the net fiscal impact on your community.
| STEPS | |
| STEP 1 | Determine population and employment changes associated with the development. |
| STEP 2 | Disaggregate budgets into categories of service expenditure (e.g., general gov’t, police). |
| STEP 3 | Allocate costs to residential and non-residential land uses. |
| STEP 4 | Divide residentially-associated costs by total population to derive a per capita estimate of service costs. Divide nonresidential costs by local employees for a per employee estimate of non-residential service costs. |
| STEP 5 | Calculate Total Costs Associated with Development: A. Calculate the residentially-induced costs associated with development by multiplying the per capita estimate of current service costs by the population increase. B. Calculate nonresidential costs associated with development by multiplying the per employee estimate of service costs by the employment increase associated with the development. C. Calculate annual debt service costs |
| STEP 6 | Disaggregate budgets into categories of revenue (e.g., license fees, taxes, intergovernmental revenue). |
| STEP 7 | Allocate revenues, except shared revenues and property taxes, to residential and non-residential uses, and estimate revenues associated with development using the same process as was used to estimate costs. |
| STEP 8 | Estimate property taxes, state shared revenue and total revenues associated with the development |
| STEP 9 | Compare estimated revenues and costs and determine net fiscal impact on your community. |
Fiscal impacts are only one type of impact associated with development, and further-more, fiscal impact analysis has a number of limitations to keep in mind.
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EXAMPLE DEVELOPMENT SCENARIO
An example development scenario for the “Town of Anywhere” is provided throughout this chapter to illustrate the nine-step technique used in assessing fiscal impacts. Characteristics of the development scenario for the Town of Anywhere include:
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The first step in the analysis is to estimate the new population and employees associated with the development. If you know the numbers, use these numbers. If not, refer to Table 2.1 in the appendix which includes demographic information by housing type and use these demographic averages to project residents associated with the new development.
EXAMPLE: Calculating Number of New Residents
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Worksheet 2.1 is provided in the Appendix to help you calculate the number of
new residents associated with your proposed development.
A number of studies have shown that the employment intensity of nonresidential development prompts public service expenditures, so a nonresidential development with more employees than another will generate more costs to the local unit. This is the rationale behind using per-employee estimates to calculate the costs associated with non-residential development.
If the developer has provided an estimate of the number of employees associated with the development, use this figure, or use the estimates presented in the appendix to determine the number of employees.
Table 2.2 in the appendix provides estimates of the average number of workers for various types of establishments. These are average numbers, based on national data. For further information on employees by establishment, go to the U.S. Census Bureau’s web site to locate the 1992 Economic Census Results at: www.Census.gov/epcd/www/92result.html/. The results from the 1997 Economic Census are also provided for some categories of employment.
Discussion Questions
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You will now begin to estimate the costs associated with the development. Beginning with expenditures, the initial step is to disaggregate the budget into service categories. The following service categories represent major services provided by local governments in Wisconsin. A more precise breakdown of service categories may be used.
Worksheet 2.2 in the Appendix will allow
you to fill in your community’s current budget
figures.
EXAMPLE: Current Budget Figure
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The portion of costs associated with residential uses is generally estimated using one of two methods: either through local knowledge (If possible, you may want to use the allocations determined in the COCS; see chapter 7 for a discussion of COCS); or through the use of property value data and parcel data as a fall-back method. For example, if you know that all expenditures for health and human services are associated with residents only, then allocate all of these costs to residential land uses. If expenditures are associated with both population and workers in the community, use the fall-back method to allocate costs. In using the fall-back method, the residential share of all service costs is estimated by dividing the residential property value and number of parcels by total value and total number of parcels, respectively. These two results are averaged and this value is applied to local costs to determine the residential share of costs.
EXAMPLE: Calculating Residential Parameters
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DISCUSSION QUESTIONS
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Worksheet 2.3 in the Appendix will allow you to calculate residentially-associated
parameters for your local government.
Once you have calculated the portion of costs associated with residential and non-residential uses, you can apply the proportion to the appropriate service categories to derive residentially-associated costs for each service category.
In the example below, total costs are multiplied by .47 to estimate residentially-associated costs and the remainder represents those costs associated with non-residential uses. Note that in the example, costs for expenditures of conservation/development, health and human services and culture and recreation, were allocated completely to residential uses. This is assumed to be based on local knowledge of how these expenditures are spent. This may or may not be appropriate for your community. Use your own judgment in allocating costs.
EXAMPLE: Estimating Residential and Non-Residential Costs
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Worksheet 2.4 provided in the Appendix allows you to estimate residential and
non-residential costs for your community.
DISCUSSION QUESTIONS
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To estimate per capita and per worker figures, divide the residentially-associated expenditures and non-residentially associated expenditures by total population and total workforce in the community, respectively. In the following example, assume that the population of the Town of Anywhere is 5500 and the number of workers in the town is 3500.
EXAMPLE: Estimating Per Capita and Per Worker Costs
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Worksheet 2.5 provided in the Appendix will allow you to estimate per capita
and per worker costs for your development.
Apply the total per capita and per employee costs to the estimated population and workforce associated with the development to derive the total operating costs associated with development.
EXAMPLE: Calculating Total Operating Costs
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Worksheet 2.6 provided in the Appendix will help you calculate total operating
costs associated with your development.
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Three Steps to Determining Infrastructure Needs and Costs Associated with the Development
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In growing communities, it is often necessary to invest in capital facilities to accommodate new development. New streets, water and sewer systems and schools may be needed to serve additional population. Because large capital projects such as sewage treatment plants are often financed by debt paid through user fees and charges to new residents, they are often not explicitly included in traditional fiscal impact studies which focus on operating budgets. Furthermore, many of these initial capital investments are required to be paid for by the developer. It is important to understand the long-term consequences of development in terms of capital improvements and facilities.
The following allows you to identify whether the proposed development is expected to generate a need for additional capital facilities or improvements. The impact of such expenditures on residents—new and existing—depends on how the capital investment is financed. If it is to be financed through a bond issue, the annual debt payment should be included as an expenditure when the total impacts of development are calculated. This section follows a case-study approach intended to assist in estimating annual debt service expenditures associated with the new development.
IDENTIFICATION OF FACILITIES AND IMPROVEMENTS NECESSARY TO ACCOMMODATE GROWTH
The identification of infrastructure facilities necessary to accommodate the new development should occur in a systematic manner. This information can be identified in a number of ways. One would be to contact department heads for their expertise on necessary capital improvements to serve new development. Another would be to analyze any support documentation the community may have, such as a capital improvement plan. Special studies can be conducted to identify needs. Lastly, to determine the physical quantities of needed capital investments, a standard for each service or facility may be useful. Ideally, this would be based on a community-needs assessment, but the existing standard of provision is an appropriate alternative. Once these service standards are established, the need for new cap-ital facilities can be determined using the following formula:
Needed Improvements = Service Standard * Demand Unit
Where the demand unit is associated with the new development, in terms of residents or school age children. For example, your community may have an existing standard for park land, such as 1 of acre of park land per 100 residents. If the development includes 200 new residents, 2 acres of park land are necessary to maintain current service standards for parks in the community. This method is useful if the goal is to maintain your current level of services to residents.
PROJECT COSTS OF NECESSARY INFRASTRUCTURE OR CAPITAL FACILITIES AND DETERMINE ANNUAL DEBT
Once you have determined the need for new capital investment, project the costs using staff expertise and/or local records. The following table provides a frame-work to determine the need for new capital investment and the annual debt service cost to the community.
For those items to be financed through a bond issue, calculate the annual debt payment using your community’s current debt policy guidelines.
In many cases, development will not generate new capital investment, as the developer is often required to pay for capital facilities such as roads and sewers. However, in this example, the development generated a need for a new library branch. The annual debt service is estimated to be about $105,000. This illustrates the problem of local capacity in estimating fiscal impacts. Due to this particular development, the community finds itself at the point where surplus capacity in the library system is used up, and new investment in a library branch is required to maintain the current standard of service for residents. In terms of the fiscal analysis, the development is held to be responsible for generating the new library, although the library will not only benefit the entire community, but it just happened that this particular development and not the previous one or the one proposed for next year, generated the need for the new library branch. Because fiscal impact analysis is intended to estimate the net fiscal impact of the development on the community’s balance sheet, the debt service should be included in the final calculation. However, it is more useful and informative to illustrate the analysis under two different scenarios—with and without the debt service of the new library.
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List of Capital Investment Items to Consider in Accommodating New Development |
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EXAMPLE: Estimating Capital Costs of Development
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Total costs of the example development are illustrated in the table below.
EXAMPLE: Estimating Total Costs of Development
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Worksheet 2.7 in the Appendix allows you to calculate the total costs
associated with your proposed development.
DISCUSSION QUESTIONS
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The table below illustrates a breakdown of major revenue categories.
EXAMPLE: Revenue Categories
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Worksheet 2.8 provides a space for you to record the amount of revenue for
similar revenue categories.
The same procedure that was used to estimate costs is used to estimate revenues (with the exception of property tax revenue and shared revenues, discussed below). Revenues are initially apportioned to residential and non-residential using local knowledge (including allocations used in the COCS) or the same ratio of .47 to rep-resent the residential share. The remainder represents the non-residential share. In the following example, it is assumed that all special assessment revenue is generated by residential uses and is allocated as such.
EXAMPLE: Estimating Residential and Non-residential Revenues
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Worksheet 2.9 allows you to record residential and non-residential revenues for
your community.
To derive the per-capita and per-worker estimates, divide residentially-associated revenues by total population to derive a per-capita estimate of revenues. Divide non-residential revenues by local employees for a per employee estimate of nonresidential revenues.
EXAMPLE: Estimating Per Capita and Per Worker Revenues
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Worksheet 2.10 in the Appendix allows
you to estimate per worker and per capita revenues.
A. Property Taxes
To estimate revenues associated with development from the property tax, multiply the expected assessed value of the development by the current local tax rate (expressed as a decimal).
EXAMPLE: Property Tax Revenue
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See
Worksheet 2.11 to estimate property
tax revenue.
B. Other Revenues
Calculate the residentially-induced costs associated with development by multiplying the per capita estimate of revenue by the population increase. Calculate the nonresidential costs associated with development by multiplying the per employee estimate of revenue by the employment increase associated with the development.
See
Worksheet 2.12 to calculate other revenues.
C. Shared Revenues
There are three major parts of shared revenues: a per capita payment, a special utility payment and an aidable revenues payment. Of these, the aidable revenues payment is the largest. In addition, the minimum/maximum adjustment, if applicable, either caps year-to-year growth or limits an annual loss.
Per Capita Each town, city and village receives a payment based on its population.
Special Utility A payment based on the value of a company’s production plant and general structures, because light, heat and power companies are exempt form local property taxes.
Aidable Revenues The payment is based on two factors—the comparative wealth of the community as measured by the per capita value of taxable property and the extent of its local financial effort.
Value: Under the first part of the formula, the state establishes a standardized value (SV) of taxable property per capita. The amount is determined annually by the Department of Revenue. If the local value per person is less than the state-established amount, the state makes up the difference. A municipality with a per capita value higher than the standardized one receives no payment under this part of the formula.
Local Purpose Revenue: These consist of the 3-year average of several receipts, including the local property tax levy, special assessments, licenses and permits and the aidable revenue payments.
Payment: The payment is based on the above 2 factors. As examples of the formula, if a municipality’s equalized value per person were 50% of the standardized value, the aidable revenues entitlement would be 50% of its local purpose revenues; if the local value were 75% of the standardized value, then the payment would be 25% of local purpose revenues.
Minimum/Maximum The minimum guarantee payment provides that a municipality will receive a shared revenue payment equal to at least 95% of the prior years payment. State law also provides a ceiling on the annual growth in shared revenues. To fund the minimum adjustment, the maximum varies each year.
Payment The total payment consists of the sum of the per capita, utility and aidable revenues payment and any min/max adjustments.
DISCUSSION QUESTIONS
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EXAMPLE: Estimating Shared Revenues
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The above example illustrates the steps to estimating shared revenues associated with the development. The actual payment for the current year is compared to an estimate of the payment with the development in place. To derive the estimate, the formula is run using the new population and property value associated with the development. The two payment amounts are compared and the difference represents the shared revenue amount associated with the development. In this example, there is no change in the shared revenue payment due to the development. The community is already at its maximum payment level, due to the maximum adjustment factor, and the development does not change this situation.
Worksheet 2.13 provided in the Appendix allows
you to calculate shared revenues for your proposed
development.
D. Total Revenues
The table below illustrates total revenues associated with the example development.
EXAMPLE: Estimating Total Revenues
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Worksheet 2.14 is provided in the Appendix to help
you to estimate total revenues associated with your
development.
EXAMPLE: Estimating Fiscal Impacts of Development
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Worksheet 2.15 is provided to help you estimate the fiscal impacts of your
development.
Although this model results in an estimate of net fiscal impact on your balance sheet, the more important goal of the model is to raise awareness as to the many questions surrounding how development impacts your community’s fiscal structure. The final estimate is a rough measure of how this particular development may affect your revenues, expenditures and tax base. This process should also prompt you to think about broad issues relating to fiscal impacts—issues of excess and deficient capacity and whether residents are truly “new” or simply relocating from within the community. These are the important questions to address, as they may change the outcome of the final estimate of impact.
The major limitation of examining a single development is that the cumulative impacts of development are lost. The incremental impact of each development when added together may be significant to your community. This development and all future developments should be examined in the context of all other development in your community. One approach to thinking about cumulative effects is in terms of threshold conditions, beyond which change would be unacceptable to your community. Thresholds are more commonly used in terms of environmental impacts; how-ever, they can also be identified for a community’s fiscal structure. You may decide that any tax increase beyond a certain percent per year is unacceptable or that the existing capacity in your water system must last for ten more years. Such threshold values are identified through a community decision-making process. The complexity of cumulative effects requires a more rigorous analysis than can be illustrated in a workbook format and often complex quantitative analysis is difficult to understand, but nonetheless, the cumulative effects of development cannot be ignored.
Development often has the most significant impacts on the school district or districts serving the development. The following discussion will assist in determining the operating revenues and costs associated with the new development and the impact on the capacity of the schools in the district. The cost estimates are based on a per-capita method and these methods will provide you with a very general estimate of how the development will impact the school district. State aids are estimated using the equalization aid formula.
The most important factor affecting the fiscal impact of new development on local schools is the number of school-age children residing in the new development. The table below illustrates an example to assist in estimating new school age children.
EXAMPLE: Estimating School Age Children
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Worksheet 2.16 will allow you to calculate, based on the
number and type of residential units, the number of school
age children you can expect to reside in the development.
Operating costs can be calculated based upon the current operating budget of the school district. Another source for both operating costs and revenues is Basic Facts, published by the Wisconsin Department of Public Instruction. It provides fiscal data for every school district in the state. Using local budget data or the DPI data, calculate the per-pupil cost of operations and apply this to the projected number of new students.
FIVE STEPS to Estimating Costs, Revenues and Impacts on School District Capacity
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COSTS
Total Costs / current number of pupils = cost per pupil |
See Worksheet 2.17
School districts derive their revenue through four major sources: state aid, the property tax, federal aid and other local nonproperty tax revenues (interest earnings). Property tax revenue and state aids represent most of a school district’s revenue. Based on 1996–97 estimates, school districts received about 93 percent of their revenue through state aid and the property tax. For purposes of this analysis, these two major revenue sources are the focus of the fiscal impact analysis for the school district.
A. Property Tax Revenue
Property tax revenues generated by the development are calculated using the school mill rate and the estimated value of the development. The formula is shown below.
See Worksheet 2.18
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PROPERTY TAXES School Mill Rate * Value of Development |
B. State Aids
State aids are calculated by simulating the state general aid formula as if the development were currently in place in the community. The state aid formula is simulated as if the development were in place by including the increased property value associated with the development and the increased number of students generated by the development. The difference between actual state aids and those estimated represents the impact of the development on state aids.
State aids may decrease with new development. This is due to the high value associated with the development. The formula for allocating state aids, also known as the equalization formula, distributes aid on the basis of relative fiscal capacity of each school district as measured by the district’s per pupil property valuation. There is an inverse relationship between equalization aids and property valuations; those districts with low, per pupil property valuations receive a larger share of their costs through the equalization formula than districts with high, per pupil property valuations. So, holding all else equal, if property values in the school district increase, state aids will decrease.
Worksheet 2.19 in the Appendix illustrates the state equalization formula and will
allow you to calculate state aids for the school district with and without
development,
similar to the method used to estimate shared revenues.
The net fiscal impact on the school district is calculated by comparing the per capita costs to the sum of state aids and property tax revenue generated by the development.
Worksheet 2.20 allows you to calculate the net fiscal impact of the
development on the school district.
This section requires an analysis of capacity at the local schools in the district. If current facilities are able to absorb the projected number of students associated with the new development, no new capacity is needed. If not, necessary capital improvements in terms of additions to schools or new schools must be deter-mined by the school district and the community. The table below illustrates how to determine whether or not the development will generate a need for new capacity.
EXAMPLE: Estimating Capacity
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Worksheet 2.21 allows you to analyze capacity in your district.