Stormwater Quality Cost Share Program

Financial assistance to install stormwater quality projects

Last updated Jun. 14, 2016 - 10:34 am
  • Cisterns are just one type of project that may qualify for funding assistance.
  • This backyard rain garden improves the quality of stormwater runoff.
  • Permeable pavement allows stormwater runoff to soak into the ground.

The City of Raleigh's Stormwater Management Division offers a Stormwater Quality Cost Share Program to homeowners, businesses, and government agencies wanting to improve the quality of stormwater runoff on their properties.

Project and Petitioner Eligibility


The chart shows the types of projects that are eligible for funding assistance under this program, benefits that each project type can provide, and the number of each project type that the City has approved for funding since the program began in 2009:

Any property owner, including residential, commercial, or public entity, who pays the City’s stormwater utility fee is eligible to petition for assistance through this program.

Projects receiving City cost share funding may not contribute to comply with City stormwater management ordinances or State stormwater statutes or regulations. Further, projects receiving cost share funding are not eligible for credits afforded by the City of Raleigh Stormwater Utility Credit and Adjustment Manual. However, these projects may be eligible for a stormwater utility fee reduction based on reduction of impervious area or replacement of impervious surfaces with semi-impervious surfaces.

Cost Sharing Requirements and Conditions

The amount of the City's cost contribution to the project will be based on an acceptable cost for the project as determined by the City, with consideration to information provided by the petitioner. For projects that employ permeable pavers or permeable pavements, the acceptable cost may not include the cost of removing or disposing of existing paver or pavement. The acceptable cost for permeable pavers and permeable pavement project will be determined by the City on the following basis:

  • Acceptable cost = (Total cost of implementing the project) – (Cost of installing conventional, non-pervious pavement of the same dimensions at the same location)

For projects that employ green roofs, the acceptable cost may not include costs of removing or disposing of existing roofing materials, installing materials that would be necessary for conventional roofing or roof drainage, or structurally reinforcing existing roofs.

The amount of the City’s contribution to the cost of approved projects will be a percentage of the acceptable cost of the project, as follows, subject to available City funding and City funding priorities and to possible variation from these percentages if so-approved by City Council:

  • For projects in areas designated as Priority Water Quality Target Areas in Exhibit A of the City’s Stormwater Quality Cost Share Policy (see map): 90% of the project’s acceptable cost.
  • For projects in areas not designated as Priority Water Quality Target Areas: 75% of the project’s acceptable cost.

Petition Review Process

A completed petition form (Funding Assistance Request Form) is required in order for City staff to evaluate requests for cost share assistance. Complete petitions include all information, studies, etc., necessary for staff review. Petitions that are not complete may require more time for processing than complete petitions. Following staff’s review, petitions are scheduled for consideration by the City’s Stormwater Management Advisory Commission (SMAC) during a scheduled meeting, typically monthly. SMAC provides recommendations to City Council regarding project approval. City Council then may approve or deny the petition, hold it for future consideration, or request additional information about the project or the petition.

Petition Approval and Next Steps

If the project is approved by City Council, the petitioner will be required to sign an agreement that describes the scope of the project, requirements for maintaining the project for 10 years, and terms of the City’s cost contribution. The petitioner also will be required to submit annual reports for 10 years documenting that the project continues to function as intended.

Projects typically are implemented by the property owner, and City funding is provided as reimbursement after installation is complete and accepted by the City. The City must review and accept project designs before installation is started and must observe and accept installation work before approving payment of the City’s cost contribution. The property owner must solicit quotations or bids for installation work from qualified vendors or contractors, unless the installation work is to be conducted by the property owner or otherwise conducted at no cost to the project or to the City.

Under some circumstances, cost share projects can be implemented by the City, with the property owner paying its contribution to the City in two installments. Please contact Stormwater staff for additional information about this alternative arrangement.

For projects that receive more than $30,000 of City funds, the property owner must record a land-use restriction on the property’s deed that gives notice of the existence and location of the project and that restricts uses of the portion of the property to uses consistent with and not detrimental to the intended performance of the project. The land-use restriction must run with the land for a term of not less than 10 years, after which time the land-use restriction may terminate. City funds will be expended for the project only after the land-use restriction has been recorded on the property deed with the Wake County Register of Deeds and a copy has been provided to the City.


Contact the Stormwater Management Division at 919-996-3940 or via email.

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