Wilsonville weighs upfront Frog Pond East fee for Stafford Road water and sewer extensions
City of Wilsonville, Oregon · Meeting date: October 19, 2026 · Published: October 20, 2026
Wilsonville City Council is being asked to consider an infrastructure fee of about $15,560 per single-family home and $11,580 per multifamily unit in Frog Pond East. The proposed charge would help reimburse the city for developer-responsibility portions of water and sewer pipelines installed with the Stafford Road project.
Key points
- The proposed Frog Pond East fee would fund the local developer share of water and sewer pipeline extensions along Stafford Road, rather than the oversized capacity funded through system development charges.
- Indicative charges are about $15,560 per single-family dwelling and $11,580 per multifamily dwelling, with collection proposed at building-permit issuance.
- Staff proposes that the city construct the Stafford Road works in advance and recover costs through the fee, rather than wait for collections to accumulate.
- The fee would be updated at advanced design, at construction bidding and after completion; council was told adoption is planned for consideration on November 16.
Full report
Wilsonville is preparing a Frog Pond East infrastructure fee that would recover developers’ local-share costs for extending water and sewer infrastructure on Stafford Road, as part of a larger city-led corridor construction programme.
City Engineer Zach Weigel told council that the fee would cover the portion of pipeline work that developers would ordinarily be required to build to serve their own projects. System development charges would continue to fund oversized facilities intended to serve development beyond an individual project.
The Stafford Road programme between Boeckman Road and Colley Road includes road widening, two roundabouts, transit stops, bike lanes, sidewalks and undergrounding overhead utilities. It also includes water and sewer pipeline extensions. Under the proposed methodology, Frog Pond East would pay the developer-responsibility share of the pipelines, while Frog Pond West collections already cover roughly half of the pipeline funding, according to staff.
The preliminary charge is approximately $15,560 for a single-family dwelling and $11,580 for a multifamily unit. The fee would be assessed and collected when a building permit is issued. Staff said the calculation is based on preliminary, 30% design work and includes contingency, rather than solely planning-level estimates.
Unlike the existing Frog Pond West fee, the city proposes to build the works before it has collected the full amount. Weigel said this approach is intended to avoid the cost escalation experienced in Frog Pond West, where the fee rose from $17,809 to $36,090 over five years as collections accumulated while project costs increased.
Under the proposed approach, the fee would be revised when the design reaches about 60% in January 2027, again at construction bidding, and then set using actual project costs once construction is complete. Thereafter it would be adjusted annually for loan costs and for changes in assumed dwelling counts resulting from land-use approvals.
Staff said construction is currently envisaged around January or February 2028, although the council did not take action during the work session. Weigel said staff plans to return on November 16 for council consideration of adoption.
Developers and other stakeholders raised concerns over the additional cost at permit issuance. Council members also asked whether future Frog Pond South development should contribute to infrastructure that may ultimately serve that area. Staff said no Frog Pond South fee is currently proposed, but one could be considered if a future project presented similar efficiencies for city-led construction.
This summary was generated by AI based on the source document and may contain errors.
Source: City Council, City of Wilsonville