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ADU utilities, inspections and handoff

Resolve service capacity early and collect the documents you will need after construction.

Before design is finalized

  • Ask providers about water, sewer and electrical capacity, connection location, metering and lead times.
  • Locate recorded easements and verify trenches will not conflict with access or mature trees.
  • Get utility work and any off-site improvements into the budget rather than assuming a short connection.

During construction

  • Keep inspection records, approved changes and photos of concealed utility routes.
  • Track permit conditions and deferred items in one shared checklist.
  • Agree how service interruptions to the occupied home will be scheduled.

At handoff

  • Collect final approvals required by the city, approved drawings, equipment manuals and warranty contacts.
  • Walk through shutoffs, breakers, filters, ventilation controls and alarms.
  • Record incomplete work, responsible party and target date; confirm any rental registration separately before occupancy.

Turn the checklist into a project plan

Record each open question, the person responsible, evidence needed and target date. Confirm requirements with the city and your licensed design/build professionals.

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Planning guidance. Requirements depend on the property, design and adopted local codes; this guide does not certify compliance. How our guidance is prepared