Stormwater Design Plan Requirements Green Stormwater Infrastructure Updated: Aug 27, 2026 Jump To: Nitrogen Export Load Watershed Protection Submitting a design plan? You need to meet certain requirements when using green stormwater features. Nitrogen Export Load Plans must show the amount of stormwater runoff coming off a site after development will be the same or less than before development (Section 20). Watershed Protection There are requirements for new development in the Falls and Swift Creek Watershed Protection Overlay Districts (Section 24 and Section 25). Other Requirements Landscaping Right-of-Way Watershed Protection Standard Details Contact Stormwater Development ReviewStormwater.Imperivous@raleighnc.gov919-996-3773 Supported Services Green Stormwater Infrastructure Initiatives Back to Stormwater Department: Water Related Services: Green Stormwater Infrastructure Initiatives Subscribe Stormwater Smart Newsletter Was this page helpful? Yes No Email Please choose the type of issue you are experiencing with the page from the dropdown. - Select - Accessibility Issue Missing information Wrong information Design issue Something isn’t working as expected Customer Service issue (Examples: trouble with paying utility bill, missed garbage collection, permit issues, etc.) Comments Would you like to be notified by the City about your feedback? This feedback widget is not intended for customer service issues. This feedback is reviewed monthly to help us improve our site. For immediate customer service please refer to our staff directory.