The study of intergenerational mobility and hence of equality and inequality of opportunities occupies a central position in societal debates about inequality and fairness. It also has seen a resurgent interest among researchers recently as big new databases, in particular registry data have become available for studying intergenerational dynamics in more detail (Chetty et al 2014). As researchers revisitquestions of mobility with more extensive demographic databases we are able to ask more detailed questions about the processes facilitating or hindering mobility. Among the questions that are of particular interest for researchers and policymakers: How do regional and neighbourhood contexts shape intergenerational mobility paterns? How does intergenerational mobility differ between natives and locals? The aim of our project is to explore the effects of neighbourhood exposure and immigrant background on intergenerational class and income transmission in France.