What is a Service Unit?
A service unit is a standardized measure of consumption, use, generation, or discharge attributable to an individual unit of development.

A service unit is calculated in accordance with generally accepted engineering and/or planning standards and is based on historical data and trends applicable to the political subdivision in which the individual unit of development is located during the previous ten years.

For roadway impact fees, the basic service unit is a vehicle mile of travel during the afternoon peak hour.

For utility impact fees, the basic service unit is a ¾-inch water meter typically used for a single family detached dwelling.

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1. The information in these FAQs is adapted from Chapter 395 of the Texas Local Government Code
2. What are Impact Fees?
3. Who is authorized to enact or impose Impact Fees?
4. What are Roadway Impact Fees?
5. What are Utility Impact Fees?
6. Who pays Impact Fees?
7. When must Impact Fees be paid?
8. What is a "Service Area" for Roadway Impact Fees?
9. What is a "Service Area" for Utility Impact Fees?
10. What is the general process for updating Impact Fees?
11. What are Land Use Assumptions?
12. What is a Capital Improvements Plan?
13. What is a Service Unit?
14. What are Impact Fee Credits?