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Accessory Dwelling Unit (ADU): Pre-Application Form
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This form has been modified since it was saved. Please review all fields before submitting.
Complete the following fields. Once submitted the Water Division will respond with information on the existing water meter and pressures. The information provided by the Water Division is intended only for use in obtaining a Building Permit for an ADU.
Agent or Contractor
Type of ADU
-- Select One --
Addition to Primary Residence
Convert Space in Existing Residence
New Detached ADU
Convert Existing Detached Structure
Approximate square footage of new ADU
Does primary residence have a fire sprinkler system?
-- Select One --
Domestic Water Service Size (Post Meter)
If known, provide the water service diameter in inches
City of Napa - Water Division
This section to be completed by Water Division staff only.
Domestic Water Service Size (diameter, inches)
Domestic Water Service Meter Size
Existing Backflow Device
Existing System Water Pressure
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