This thesis takes the perspective of the life course theory and residential location theory to describe and analyse the residential mobility patterns of young adults in the family formation stage in the Stockholm region for the years of 2008 and 2018. As affodrability in the major metropolitan areas of Sweden has decreased during large parts of the 21st century, and with the size and tenure of housing being determinants for fertility, it begs to ask how mobility patterns of the group have changed.

Through using descriptive statistics and data visualization this thesis describes the residential mobility patterns of young adults in the family formation stage in the Stockholm region as well as shifts in their determinants. The findings are that several municipalities have increased the age group of young adults transitioning to parenthood as share of total in-migrations. A test of Moran’s I and a test for multicollinearity was performed before a OLS regression model was applied. The model found no statstical significance for affordability in 2008, however for 2018 affordability was a highly significant factor to explain patterns of in-migration.