What defines quality class in building appraisal?

Quality class in building appraisal is primarily determined by the quality of materials and workmanship in the construction of the building. This aspect reflects not only the aesthetic aspects of the property but also its durability, functionality, and overall value. High-quality materials—such as premium wood, superior insulation, or state-of-the-art systems—alongside expert craftsmanship contribute significantly to a building's classification.

While architectural style may influence a property's appeal, it does not directly measure the quality of construction. The age of the building can affect its value and condition, but it is not a definitive criterion for quality class. Location is important for value assessment and can impact market desirability, but it does not inherently define the construction quality. Therefore, focusing on materials and workmanship provides the most accurate basis for assessing a building's quality class in appraisal.