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HomeMy WebLinkAboutResidential Utility Service Guidelinesrentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 10/30/2025 Page 1 of 2 CITY OF RENTON Ι PERMIT SERVICES RESIDENTIAL UTILITY SERVICE GUIDELINES APPLICABILITY Residential utility requirements vary based on the physical configuration of the development and whether dwelling units are located on individually platted lots or within a unplatted or condominium development. DEFINITIONS Platted Unit – A dwelling unit located on its own individually subdivided lot, typically established through a formal platting process. These units are designed for separate fee-simple ownership and are typically served with individual utility connections. Examples include detached homes, duplexes, and townhomes located on separate lots. Unplatted Lot or Condominium Development – A building or group of buildings located on a single parent parcel or within a condominium ownership structure, where individual dwelling units do not occupy separate lots. These developments may contain multiple dwelling units within one or more buildings and typically share structural and utility infrastructure. UTILITY SERVICE STANDARDS Utility Platted Residential Lots Unplatted Lot or Condominium Developments Water • Each primary dwelling unit and any accessory dwelling unit (ADU) located on a platted residential lot shall be served by a separate water service line and individual water meter with each meter connected directly to a city water main. • Water service lines shall not be located beneath buildings, or any other structures and shall be located in areas that easily accessible for maintenance or repair. • Meters and water service lines shall be sized per Uniform Plumbing Codes as part of the building permit approval and shall be located and installed in accordance with City of Renton utility standards. • Each residential building and condominium building shall be served by a separate water service line and individual meter, each connected directly to a city water main fronting each residential building, each unit of a multi-plex building, or each condominium unit with zero lot line. • Private sub-meters may be installed for private purposes only, such as bill splitting, but sub-metering is not required by the city, and the city will only provide one bill to the owner of the building or dwelling unit that is served by city water meter. • Water service lines shall not be located beneath buildings or any other structures and shall be located in areas that easily accessible for maintenance or repair. RESIDENTIAL UTILITY SERVICE GUIDELINES rentonwa.gov/permitservices | developmentengineering@rentonwa.gov | 425-430-7240 10/30/2025 Page 2 of 2 Utility Platted Residential Lots Unplatted Lot or Condominium Developments Sewer • Each platted lot shall have a side sewer to the public main. • Side sewers shall not cross beneath buildings or other structures and located in areas that are easily accessible for maintenance or repair. • The lot being served must have legal rights to access, operate and maintain the side sewer. • Each building may connect to a shared sewer system with a common side sewer stub or main. • Internal plumbing shall convey wastewater from all units within the building to the building’s main sewer line. • Connected multifamily developments may share a single side sewer. • A joint use side sewer and maintenance agreement is required and recorded against the property whenever one or more buildings share a side sewer with separate ownership of the buildings or dwelling units within a building. Storm Drainage • Each lot shall have individual storm drainage service lines that may connect to a shared private system discharging to the public stormwater system. • Where drainage infrastructure is shared, a recorded storm drainage easement is required. • Each building or area shall connect to a shared storm drainage system. • Site runoff shall be collected in a private storm system and discharged to the public storm system or a natural waterbody, after complying with all applicable requirements in the Renton Surface Water Design Manual. GENERAL NOTES 1. Shared private utility systems require a recorded private easement and maintenance agreement whenever one or more buildings or dwelling units share a utility line, but ownership of the buildings or units is separate. For properties established as condominiums, the recorded Declaration and Covenants, Conditions, and Restrictions (CC&Rs) must clearly define ownership and long-term maintenance responsibilities for all shared utility service lines and infrastructure. 2. Utility service requirements are based on the physical configuration and legal subdivision status of the development (i.e., platted vs. non-platted or condominium), not only on who owns the property. 3. Utility designs must be submitted for review and approval through the City of Renton's permit review process. Coordination with the city is required for all connections to public utility infrastructure.