The purpose of this document is to identify and explain differences between the 2013 and 2015 American Housing Survey (AHS) estimates that can be attributed to changes from the 2015 re-design of the survey. This redesign included changes in the sampling, questionnaire, editing, and weighting methodology.

This analysis focuses on changes in the questionnaire, editing, and imputation of the AHS data. The document first summarizes the overall changes in the AHS re-design, then details specific analysis of large changes that have been researched.