Which of the following indicates a change of at least 10% in assessed value?

The choice indicating "Major renovations or conversions" correctly reflects situations that typically lead to a substantial change in assessed value, often meeting or exceeding the 10% threshold. When properties undergo significant renovations, such as adding square footage, upgrading key systems, or changing the fundamental use of the property, the value is likely to be reassessed to reflect these improvements. Major renovations modify the physical condition and functional capabilities of the property, which can radically alter its market value.

In contrast, minor maintenance repairs generally do not impact property assessment dramatically. These repairs are often routine and do not enhance the overall value in a way that would result in a significant reassessment. Standard market adjustments are updates made to account for overall market trends, but these do not necessarily indicate individual property changes and might not reach the 10% threshold. Lastly, “All property transactions” encompasses a wide range of activities that do not inherently guarantee a 10% change in assessed value; not all transactions or transfers have a significant impact on assessed valuations. Thus, the focus on major renovations or conversions aligns best with the concept of a significant assessed value increase.