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Accessory Dwelling Units

For EPS New Construction

Incentives for Accessory Dwelling Units

Accessory dwelling units (ADUs) are becoming more and more popular as homeowners see the value of having an extra living or rental space on their property. ADUs can also benefit you as a builder. Energy Trust offers performance-based incentives to builders of energy-efficient ADUs that earn an EPS. Qualifying units must meet specific efficiency requirements, and are designed to deliver low energy costs and superior overall performance.

To begin the process, meet with an Energy Trust trade ally verifier during the design phase. The verifier will work with you to make sure your ADU meets Energy Trust incentive specification requirements.

For more information, email us or call 1.877.283.0698.

An ADU is a structure that permits with the local jurisdiction as an accessory dwelling for intended use as living quarters. To qualify for incentives, the ADU must receive an EPS and:

  • Be permitted as an ADU by the local jurisdiction
  • Adhere to square footage limitations set by local jurisdiction
  • ADU cannot be a conversion of an existing space
  • Have its own USPS mailing address separate from the main residence
  • Be intended to be used as a primary residence, not a short-term rental property
  • Can share a meter with main residence
  • ADU units may be stand-alone, side by side within a structure, or stacked with ADU as top or bottom unit
  • Pair with our net zero offering to earn additional incentives for qualified ADUs.
  1. Establish project eligibility (see Eligibility tab).
  2. Select a third-party verifier in accordance with Energy Trust’s requirements.
  3. Your verifier will inspect your home and perform diagnostic tests to evaluate energy performance.
  4. Once the home has been built and verified, your verifier will update the project model with inspection details and performance results, confirm your incentives and issue the final EPS.

Questions? Email us or call 1.877.283.0698.