Springfield officials review ADU utility rules, fees and permitting to avoid deterring small developers

Springfield City counselors and staff on a maintenance and development call discussed whether accessory dwelling units can share existing water and sewer services, the likely costs to do so, and how zoning and building rules apply.

Councilor Tracy Whitfield, vice president, said constituents were worrying that water and sewer charges for new piping could make ADUs prohibitively expensive for emerging developers and residents. "I had got one complaint about developing ADUs, and that particular complaint was around the fees that water and sewer is charging to, I guess, build new piping for the water," Whitfield said.

Water and Sewer Commission staff member Josh explained the commission’s typical practice and offered a cost range. He said the commission generally requires a single service per dwelling and avoids splitting an existing service because leaks before the meter would increase unaccounted-for water that all customers ultimately pay for. "In general, it's a single sewer service and a single water service per dwelling," Josh said. He estimated installation costs depend on distance and contractor rates: a water service commonly ranges about $1,200–$2,500, while a sewer service can reach $5,000 or more depending on depth and distance. Josh also noted that customers own the service pipes and that the commission helps when it can.

Steve Dustless, code enforcement commissioner, said code and policy can be distinct. For attached ADUs that are part of the existing structure, the existing service often suffices if sized to code. "If it's attached, yeah, there's no problem. As long as... that service is big enough, then... the code required the service to be enlarged," Dustless said. By contrast, a freestanding ADU is generally treated like a new single‑family dwelling and may require a separate service.

Zoning staff member Joe described the city application and review path: an ADU applicant submits a site plan showing placement and setbacks, Joe reviews it under the zoning ordinance and then forwards an approval letter to the building department. He said there is currently no separate ADU application fee charged by the zoning office; fees follow the normal site‑plan and building permit schedules. "There is no cost for that application yet anyway," Joe said, adding that fees for alterations or a new single‑family dwelling are charged by square footage and construction value.

Officials exchanged several practical clarifications: two ADU applications exist in Springfield (one an addition to an existing structure, one a separate building); applicants must meet setback and parking requirements; attached ADUs normally can use the house’s plumbing if sized correctly; freestanding ADUs may be treated as standalone single‑family houses for meter, service and permitting purposes; and ADUs require a separate entrance and two means of egress when treated like a two‑family. The building department emphasizes compliance with standard building permit items including smoke detection, egress and the city’s stretch energy code.

Participants agreed to follow up. Councilors will send specific questions to the Water and Sewer Commission so staff can convene the relevant engineering, inspection and billing personnel and confirm where rules, regulations or coding requirements might block shared services. Dustless said he would check with the plumbing inspector to confirm whether a freestanding ADU may be tied into another dwelling’s service under plumbing code or whether that is a policy decision.

Councilor Brown framed the discussion as part of a broader push to increase affordable housing options by making ADUs feasible for smaller and BIPOC developers. "We don't want to add more constraints to our developers if possible," Brown said.

Officials did not take formal action during the discussion; staff committed to review written questions, check the city's rules and regulations and report back to councilors.