Portland's Home Energy Score: what sellers have to do before the listing goes up

tylergkoski

Oct 5

3 min read

If you had a Home Energy Score done on your Portland house in 2018, it is either expired or about to be. That is new, and most sellers who were told "you already have one" have not heard it yet.

Portland has required a Home Energy Score before a single-family home goes on the market since 2018. The program just passed a milestone that makes the expiry question real for the first time.

What the rule actually requires

You need a current Home Energy Score and its report before the house is listed or advertised anywhere. Not before closing, not before the inspection — before the listing goes up.

The city is specific about what counts as advertising: RMLS, a yard sign, an online listing, any public marketing of the home for sale. The score also has to appear in that advertising, and a copy of the report has to be available to anyone who comes through a showing.

So the sequence most sellers imagine — list the house, then sort out the paperwork while offers come in — is backwards. The assessment happens first, or the listing is not compliant when it goes live.

The part that changed

Scores are valid for up to eight years from the assessment date, and only if nothing about the house has changed in the meantime. Do work that would alter the score, and the clock does not simply keep running.

Portland's program began in 2018. In August the city reported it had passed 50,000 recorded scores, covering more than 30% of the city's housing stock, and noted that scores from that first year are now beginning to expire.

Eight years is also roughly how long people stay in a house. Which means the first cohort of scored homes is aging out of compliance at almost exactly the moment those owners start thinking about selling. If you scored in 2018 because you were buying, and you are thinking about listing now, the thing you are carrying is probably no longer current.

Both figures are as of 5 August 2026. They will have moved since.

How to check yours

Find the assessment date on the report, not the date you remember getting it. Eight years from that date is your outside limit.

Then ask the harder question: has anything changed? New windows, a different heating system, added insulation, a converted space — anything that would change how the house performs. If the answer is yes, the old score is describing a house that no longer exists, and a buyer comparing it against what they see is going to notice.

If you cannot find the report at all, that is its own answer. Order a new assessment and build the lead time into your listing plan rather than discovering the gap the week you wanted to go live.

What it costs you to get this wrong

Honestly, the most common cost is not a penalty. It is a delay.

An assessment has to be scheduled, performed and reported, and that takes days rather than minutes. A seller who discovers the problem the week they wanted photography done loses that week — which in a market with fifty-seven days on market is not fatal, but it is avoidable, and it usually happens to the people who had the least slack in their timeline.

We have not found a published fine amount on any city page, so we are not going to invent one. Treat the real risk as the calendar.

Where this fits

The Home Energy Score is one of a small set of things Portland asks a seller to have in hand before the house goes public, alongside the disclosure paperwork and whatever the house itself throws up in inspection. Our guide to Oregon's seller property disclosure statement covers the form that catches most first-time sellers off guard, and Portland property taxes explained covers the other number on the house that never means what people assume it means.

The city's own program pages are the authority on scope and timing: Portland Home Energy Score.

Thinking about listing in the next few months and not sure whether your score still counts? Start a conversation.