Statute of repose in Oregon

Direct answer

Oregon’s statute of repose for certain injury and construction-related claims is 10 years from the time the relevant improvement is substantially completed (subject to the statute’s exceptions), under ORS 12.135(1).

In practice, this can matter even when the underlying statute of limitations might otherwise look workable: repose is an outer time limit tied to a fixed event (typically substantial completion). So a case can be barred by repose even if it’s filed within the limitations period measured from claim accrual.

Note (gentle disclaimer): A statute of repose is not the same as a statute of limitations. Limitations deadlines generally start when a claim accrues (often related to injury or discovery), while repose deadlines start from a fixed event (commonly substantial completion).

What you need to know

DocketMath’s jurisdiction-aware workflow is designed to help you model Oregon’s timing rules—especially where repose may operate as a separate, independent cutoff from the usual accrual-based limitations clock.

Before you run numbers, gather the key facts that typically drive the outcome:

• **Repose vs. limitations (different triggers)

  • Repose (outer cap): Under ORS 12.135, a covered claim can be cut off after a set number of years, regardless of when the claim was discovered or accrued.
  • Limitations (when to sue): Other Oregon provisions (commonly ORS 12.110 for many claims) set a filing deadline that starts when the claim accrues, which can be fact-dependent.

• The trigger event matters

  • For the Oregon repose rule discussed here, the central trigger is the date the improvement is substantially completed.

• Claim scope must fit

  • ORS 12.135 is aimed at specified “actions for damages for injury to real property” and related categories connected to improvements. If your pleaded facts don’t fall within the statute’s scope, repose may not apply the same way.

• Exceptions can change the analysis

  • Oregon’s repose statute includes circumstances that may affect whether it bars a claim. So, a single “10 years from substantial completion” model is most useful as a starting point, not as a guaranteed conclusion.

Gentle caution: DocketMath helps you compare deadlines and see how changing inputs affects timeliness, but the statute’s fit to your specific claim category can be fact- and pleading-dependent.

Step-by-step

Use these steps with DocketMath (statute-of-limitations calculator) to evaluate whether a potential Oregon claim is barred by repose, limitations, or both.

1) Identify the “substantially completed” date

Determine the best-supported substantial completion date for the improvement. Common sources include:

• Certificate(s) or documentation of substantial completion
• Contract/project records
• Builder/project logs
• Objective milestone records referenced in the underlying dispute

If parties argue multiple dates (e.g., “substantial completion” vs. “final completion”), you may need to run more than one scenario.

2) Apply the 10-year repose window

Under ORS 12.135(1), the repose period is 10 years from substantial completion. In DocketMath terms, treat this as an outer cutoff filing deadline.

3) Separately determine the limitations/accrual deadline

Even if repose doesn’t bar the claim, you still need the limitations deadline, which is usually calculated from accrual (not from substantial completion).

A common starting point in Oregon is the general limitations framework (often ORS 12.110, depending on the claim type), but you should select the rule that matches the cause of action you’re analyzing.

4) Compare both deadlines (both must be cleared)

To be timely in the way that matters for filing:

• Repose deadline: compare the filing date to the repose cutoff (outer cap)
• Limitations deadline: compare the filing date to the limitations cutoff (accrual-based)

If the lawsuit is filed after repose expires, Oregon may bar the claim even if it would have been timely under the limitations calculation alone.

5) Document your timing evidence

Keep a short list of the facts and dates you used:

• Substantial completion date source (and any alternate argued dates)
• Accrual date source (and why the selected accrual trigger applies)
• The filing date you used for comparison in DocketMath

This is practical because the biggest disagreements in these cases often come down to competing date arguments.

Key statutes and citations

The core Oregon authorities you’ll typically look to when analyzing construction/improvement-related repose and limitations timing are:

Bottom line workflow: calculate both

1. the repose cutoff from substantial completion, and
2. the limitations deadline from accrual,
   then compare your filing date against each.

Common pitfalls

These are frequent “gotchas” when people model Oregon timing for improvement/construction-related claims:

• Using the wrong start date

  • Repose generally starts from substantial completion, not from injury, discovery, or first notice.

• Assuming repose and limitations are the same

  • They run from different triggers and can expire at different times.

• Ignoring scope and claim framing

  • ORS 12.135 applies to specified categories. If the claim doesn’t fit, the repose mechanism may not apply.

• Not accounting for disputed project milestones

  • Contractors may argue for an earlier substantial completion date; claimants may argue for a later one.

• Over-weighting discovery-based reasoning

  • Repose is an outer time limit tied to a fixed event, so “we didn’t know yet” arguments don’t necessarily extend repose.

• Mixing up event dates vs. filing dates

  • For repose, the key comparison is typically the time of filing relative to the repose cutoff date.

Run the numbers

You can use DocketMath’s statute-of-limitations calculator to compare deadlines using a timeline approach. Start with the repose calculation driven by substantial completion, then run the limitations calculation driven by accrual.

Primary CTA: /tools/statute-of-limitations

Example (hypothetical)

• Substantial completion date: June 15, 2015
• Repose period (ORS 12.135(1)): 10 years

Estimated repose filing cutoff: June 15, 2025
(meaning a filing after that date is generally barred for covered claims under repose)

Now add the limitations side:

• Accrual date (for the chosen claim type under ORS 12.110 or another applicable section): March 1, 2023
• Limitations deadline: calculated in DocketMath based on the specific limitations rule you select

What to check in DocketMath

Run both calculations and then use a quick checklist:

If your answer to the repose question is “no,” repose may control and the limitations analysis may not rescue the claim.

Sensitivity testing (practical approach)

To make the analysis robust, run multiple scenarios:

• If substantial completion is disputed

  • Run one repose calculation using the contractor’s asserted date and another using the owner/claimant’s asserted date.

• If accrual is disputed

  • Run limitations calculations using alternative accrual triggers that match the competing legal theories.

This “two-track” method helps you see whether repose is decisive or whether limitations is the controlling deadline in your situation.

Related reading

• Choosing the right statute of limitations tool for Vermont — How to choose the right calculator
• Statute of limitations in Singapore: how to estimate the deadline — Full how-to guide with jurisdiction-specific rules
• Choosing the right statute of limitations tool for Connecticut — How to choose the right calculator