If the repair is yours to pay
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- Your building
- Your part: the whole lateral, up to the connection with the main
- Connection to the main
- Public sewer main
Drawn from the rule quoted on this page. Exceptions above still apply.
Default rule and exceptions
Owner owns the entire lateral, building to the public main.
| Party | What they are responsible for |
|---|---|
| Property owner | Owner owns and maintains the ENTIRE sewer lateral (SFPUC). |
| City / public agency | City maintains the public sewer main only. |
| Exceptions | None on record |
What the source says
Last verified against the primary source on Aug 21, 2026.
The property owner owns the entire sewer lateral, including the upper lateral, lower lateral, vent and trap.
Property owners are responsible for maintenance, including clearing and jetting the pipe to keep the pipe clear and in good working order.
City rules rest on state law. Read California's sidewalk statute, quoted verbatim, or see all 50 states in one table.
Common questions
Who pays for sewer lateral in San Francisco, CA?
The property owner. Owner owns and maintains the ENTIRE sewer lateral (SFPUC).
What does the city cover in San Francisco, CA?
City maintains the public sewer main only.
What is this based on for San Francisco, CA?
This verdict is sourced to How to Take Care of Your Sewer Lateral and 2 sources in total, each independently re-checked before publication.
Sources
- How to Take Care of Your Sewer Lateralofficial-guide · verified-primary · accessed 2026-09-27
- Sewer Laterals (Emergency Preparedness)official-guide · verified-primary · accessed 2026-09-27
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Found an out-of-date code section, a wrong verdict, or a better primary source? Tell us. Corrections that check out are applied, with the change shown in history. That is our standing policy.