Water Piping Permit Requirements
The on-line permit is available for properties in Sunnyvale with a residential zoning district.
Zoning district information is available on-line by clicking on E-Zoning.
The water piping permit will allow replacement of the existing interior and exterior water piping. Following
are the minimum requirements that must be met based on the 2007 California Building Codes:
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Extensive removal of the walls or ceiling structure may require an additional building permit.
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Water pipes and fitting outside of the building shall be brass, copper (type L or M), cast iron,
galvanized malleable iron, galvanized wrought iron, galvanized steel, or other approved material. (CPC 604)
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Water distribution pipes inside of the building can be brass, copper (Type L or M), cast iron, galvanized
malleable iron, galvanized wrought iron, galvanized steel, PVC, or PEX. (CPC 604)
- Extensive removal of the walls or ceiling structure could require an additional building
permit.
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Plumbing faucets and valves may be replaced in the same location as part of the water piping replacement
permit work. New or replaced shower or tub-shower control valves must be the pressure balanced and set
at a maximum of 120° F.
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Grounding of the electrical service is required with all re-pipes. Grounding shall consist of a continuous
grounding conductor run from the panel to a ground rod (grounding electrode) and to the cold water pipe.
Grounding of the electrical service at the main water line must be within the first 5’ of water piping into
the building. The underground water service shall not be used as the sole grounding system; it must be
supplemented with a ground rod. Grounding and bonding shall comply with the 2007 California Electrical Code.
Contact the Building Division at (408) 730-7444 or on-line at
www.SunnyvaleBuilding.com for requirements and handouts on the
bonding and grounding requirements.
The Water Piping Permit is NOT available on-line if you are:
- Replacing or repairing the tub or tub-shower enclosure. See the e-Permits menu for those
available permits.
- Adding new water piping as part of a larger remodeling project.
- Relocating plumbing fixtures, faucets, or valves.
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If any of the above conditions apply, the permit shall be issued at the One-Stop
Permit Center, City Hall, 456 W Olive Avenue. Specific process information
is available at the
Building Division web site.
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Inspections
- Two inspections are required, a rough and a final. The rough inspection should be scheduled when the new water
line is installed and before it is covered up. A final inspection should be scheduled after all work is complete.
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