Which of the following principles is NOT a key principle of mass appraisal?

In mass appraisal, principles like equity, uniformity, and efficiency are essential for creating a fair and systematic approach to property valuation across a large population of properties.

Equity ensures that properties of similar characteristics are assessed at similar values, promoting fairness in taxation. Uniformity refers to the consistency of assessments within a jurisdiction, making sure that no property is unfairly assessed compared to others. Efficiency is vital as it emphasizes the need for a cost-effective method of assessing properties while providing an accurate representation of their value.

On the other hand, marketability, while important in individual property transactions, does not serve as a key principle of mass appraisal. Marketability relates to how well a property can be sold in the marketplace, taking into consideration factors such as demand, location, and condition. Unlike the other principles, which focus on fairness and the systematic approach of valuing multiple properties, marketability is more about individual property sales and does not directly impact the mass appraisal process, which seeks to ensure equitable, uniform, and efficient assessments across all properties in a region.