A meter is only one part of the utility work
A meter measures use. The equipment and connections that serve the building are another part of the project. A price described as “utilities included” should explain which work it includes and who handles the provider’s part.
Ask your Contractor to identify the assumed arrangement for electricity, water and wastewater. Record whether the quote includes work on the main house’s equipment, trenches, restoration after excavation and agency or provider charges. A short connection and a complicated service change should not be treated as the same assumption.
| Question | Why it matters to the quote |
|---|---|
| How will use be measured? | Meter or submeter arrangements and billing need clarification. |
| Is existing capacity suitable? | The team must assess the proposed loads and connection arrangement. |
| What physical work is included? | Equipment, trench routes and repairs to affected surfaces may be separate items. |
| Who does the provider work? | Applications, fees and provider appointments can fall outside the building contract. |
Electric service and separate metering
Tell the team if you want the ADU occupant to have a separate utility account, then have the provider confirm available arrangements. A panel serving the ADU is not automatically a separately billed utility meter.
Ask how the proposed appliances and equipment affect the service design. An existing panel label or a photo is useful starting information, but it does not replace the assessment needed for the actual loads. Have the Contractor explain any assumed upgrade before it becomes an excluded cost.
SDG&E’s construction application asks for existing and proposed appliance loads and says an ADU address must be established through the municipality before application. These are SDG&E instructions, not statewide requirements for every provider. SDG&E: Apply for construction service
Water and wastewater need their own answers
Ask which water provider serves the property and how the proposed ADU will connect. Separate the desire to measure water use from any provider requirement for a new connection or meter. Ask who confirms capacity, pressure and the accepted arrangement.
For wastewater, ask where the connection is assumed and what work has been priced. If the property uses septic, identify the reviewing authority and the evaluation needed before relying on a sewer-style assumption. Do not expect an electric-service answer to settle water or wastewater requirements too.
Have the quote identify what happens if the assumed route or existing equipment is not usable. You do not need to design the solution yourself; you need to know which unknowns are still outside the price.
Gas or all-electric changes the design conversation
Decide which appliances you want before assuming a gas connection is necessary. Ask the designer and Contractor to compare the proposed equipment, required utility work and applicable energy requirements. Keep any local restriction or utility condition tied to its current source.
If gas is proposed, ask what is included for the service and distribution work. If an all-electric design is proposed, ask how the electrical service assumptions were established. This guide does not claim that one choice is always cheaper, always permitted or suitable for every ADU.
Make the appliance assumptions consistent across bids. Otherwise one bidder may be pricing equipment and connection work that another has left out.
Why the main house’s sprinkler status comes up
HCD’s March 2026 handbook ties ADU sprinkler requirements to whether sprinklers are required for the primary residence. Building an ADU does not by itself trigger sprinklers for the primary residence. Existing equipment alone does not settle the question; ask the design team and reviewing authority to confirm the applicable requirement. California HCD: ADU Handbook, March 2026
For pricing, ask whether the proposed work includes any required sprinkler design, installation or related water-service work. If the requirement is unresolved, show that as an open assumption rather than a zero-cost item.
Who owns the next utility task?
Before construction reaches a connection point, establish who submits the application, provides the technical information, pays charges and schedules the work. Ask who will tell you about a service interruption affecting the main house.
Keep provider correspondence and reference numbers with the project record. When someone says they are “waiting on utilities,” ask which approval or appointment is outstanding and who can follow up. This makes the next action clear without asking you to supervise utility construction.
Questions about this topic
Should I automatically request a separate water meter?
First establish the provider’s requirement, available arrangements and cost. Explain how you intend to use or rent the ADU, then compare the practical options before adding a meter assumption to the design.
Read more: Your ADU ideaLink to this answerDoes a square-foot price include utility upgrades?
Only if the quoted scope says so. Ask which connections, equipment, provider charges and restoration work are included and which remain unpriced.
Read more: How to read ADU bids and pricingLink to this answerDoes an ADU have to use gas?
Do not assume gas is necessary. Have the project team identify the equipment and permitted energy design for your project, and ask the relevant provider about any service work.
Read more: ADU permits and inspections: what the process meansLink to this answerSources and review notes
Official references checked on . Inline links identify the source for specific statements.
Prepared for PrepareToBuild.info as an editorial draft, assisted by AI. Not yet reviewed by a licensed construction or legal professional. Practical examples are illustrative, not actual quotes, legal terms or completed projects. Confirm requirements with the responsible agency and get qualified advice about your property, contract or finances.