Which volume of the assessor's manual contains cost data for residential structures?

Volume I of the assessor's manual specifically focuses on residential structures and includes vital cost data that assessors need for their evaluations. This volume typically provides comprehensive guidelines and formulas for estimating the replacement or reproduction costs of various types of homes. Understanding this data is essential for assessors to accurately appraise properties, as it reflects current market conditions and construction costs.

The other volumes contain information on different types of properties or aspects of assessment practices, but they do not center on the cost data for residential structures as thoroughly as Volume I does. This specialization in Volume I makes it the correct reference for cost data regarding residential properties.