Plumbing Permits

Examples of when you need a plumbing permit:

  • Replacing an electric water heater
  • Installing water service from meter to house, including irrigation backflow preventer
  • Altering piping inside a wall, ceiling or beneath a floor (including removing and replacing a shower or bath tub)
  • Installing or moving a garden hose bib or drinking fountain.
  • Installing new plumbing where it did not exist previously
  • Installing or replacing any fixture or valve in a commercial kitchen

Examples of when you don't need a plumbing permit:

  • Repairing or replacing sinks, toilets or faucets not concealed in a wall in a code-compliant manner
  • Replacing a fixture with a similar fixture in the same location, such as sinks, toilets and faucets
  • Repairing or replacing countertops, shower heads, rain gutters or downspouts
  • Installing a water feature or exterior hot tub that is filled by a hose

Your project may require plan review. Examples of projects that require you to submit plumbing plans with your application include: 

  • New non-residential building
  • New multifamily residential projects (three or more dwelling units per building)
  • Roof drains and overflow systems
  • Any work involving:
    • Medical gas piping
    • Commercial kitchens, food preparation, food service 
    • Hazardous waste
    • Laboratory
    • Oil or sand interceptor, waste interceptor, grease interceptor or grease trap installation
    • Sumps (residential sump pumps need prior approval, but not plan review)
    • Underslab or footing drains within the building

Plumbing permits that do not require plan review can be issued the same day. These permits will still require inspections.

Submit permit applications and plans online at

Fees and Timelines