Stormwater Utility Fees

Residential Properties
Effective July 1, 2014, residential properties are assigned to one of the following tiers based on the amount of impervious area on the property. To learn more about how your property is assigned to a tier visit How Your Bill Was Calculated.
Tier 1
Properties with less than 2,000 square feet of impervious area are charged a yearly stormwater utility rate of $39.12.
Tier 1 Illustration
Tier 2
Properties with impervious areas between 2,000 square feet and 4,000 square feet are charged a yearly stormwater utility rate of $81.
Tier 2 Illustration
Tier 3
Properties with more than 4,000 square feet of impervious area are charged a yearly stormwater utility rate of $162.24.
Tier 3 Illustration
You have the right to appeal your stormwater fee if you feel the calculation of impervious area for your property is incorrect. Learn more on the Appeals and Other Forms page. Remember: impervious area is not the same as the heated square footage of your home listed on your property taxes. An impervious area is a hard or compacted surface that water cannot easily soak into such as driveways, roofs, patios, and private sidewalks. To learn more visit How Your Bill Was Calculated.

Other Residential Properties
Townhouse and condominium developments and other similar properties containing impervious surface in common ownership shall be charged for the total impervious surface of all commonly-owned property within the development. The stormwater service bill for the commonly-owned property within the development shall be sent to the homeowners' association. Individually-owned property within the development shall be billed at the residential tier 1 rate for each individual parcel and the stormwater service bill shall be sent to the owner of each individual parcel.

You have the right to appeal your stormwater fee if you feel the calculation of impervious area for your property is incorrect. Learn more on the Appeals and Other Forms page.

Non-Residential Properties
A survey using statistical regression analysis determined that the average amount of impervious area on a residential lot within the City of Durham was 2,400 square feet. This value is used as an Equivalent Residential Unit (ERU) in determining the stormwater utility fee for non-residential properties. These properties are charged $6.75/month for each ERU. Properties that do not divide evenly into ERUs are rounded to the next lowest ERU if the remainder is less than 0.5 and rounded up if the remainder is 0.5 or greater. There is no stormwater utility fee for non-residential properties that have less than 0.5 ERUs (or 1,200 square feet) of impervious area.

You have the right to appeal your stormwater utility fee if you feel the calculation of impervious area for your property is incorrect. Learn more on the Appeals and Other Forms page. Remember, impervious area is NOT the same as the heated square footage of your home listed on your property taxes. An impervious area is a hard or compacted surface that water cannot easily soak into such as driveways, roofs, patios, and private sidewalks. To learn more, visit How Your Bill was Calculated.