Green Rental Housing

• Get a HERS Assessment.
• Score of 110 or below to pass (lower = better).
• If your unit meets this score, it’s compliant for life, unless you make significant modifications to the property, with no further upgrades needed under the ordinance.

Need a HERS Rater?

• Contact RESNET
  Reach out to Michael Matthews at RESNET, the organization that created and maintains HERS, to find raters in our area:
  michael@resnet.us 
  760-390-4400 
  
• Michigan Saves Find a Contractor tool
  Select "energy audits" under services. Visit the website and/or call potential contractors, as not all energy auditors are HERS assessors. 

1. Download the Green Rental Housing Checklist
   • For more information on the items in the checklist, and how to obtain points for them, refer to the Landlord Resource Guide. 
2. Fill out the attestation form in the checklist with a minimum score of: 
   • 70+ points (out of 308) for inspections from Jan. 6, 2026, to Jul. 5, 2028.
   • 110+ points (out of 308) for inspections after Jul. 5, 2028.
3. Provide documentation of the items that are claimed 
   • Can be photos, screenshots, or process documents
4. Submit the attestation form and documentation document in the files section in STREAM

Upgrades like air sealing and insulation can reduce exposure to indoor and outdoor pollutants, moisture, mold, and mildew. Replacing methane gas-burning appliances with electric models cuts down on indoor air pollutants linked to respiratory issues for cleaner, safer air.

Well-insulated, energy-efficient units maintain consistent, comfortable temperatures year-round – and boost resilience during power outages and winter storms. They avoid drafts and cold spots in winter and overheating in summer. Stable temperatures, lower energy bills, and cleaner air decrease stress – and support better physical and mental health.

Efficient units use less energy, saving money 24/7. Improvements like air sealing and insulation keep heated or cooled air where it belongs: inside the home. And upgraded appliances like heat pumps or other ENERGY STAR devices also use less power – minimizing monthly utility costs even if electric or gas rates rise.

Buildings produce nearly 70% of Ann Arbor’s greenhouse gas emissions, and boosting rental efficiency is a big opportunity to cut pollution and bring us closer to A2ZERO by 2030.

Healthier, comfier, more efficient units mean happier tenants who are likely to stay longer, recommend your property to friends, and leave positive reviews. That means lower turnover and vacancies.  And Ann Arbor’s Office of Sustainability and Innovation provides expert guidance and can connect you with rebates, grants, and tax credits – boosting the ROI on any upgrades you make.