At the heart of the discussions on Brexit are issues about the future balance between the mobility and place-dependency of cross-border flows and networks. This chapter examines this issue against the background of the internal market and the Banking Union. It will be shown that both in an internal market context and in a Banking Union context, improvements in ‘spatial mobility’ are enabled, supported and controlled by processes of state-EU ‘rescaling’. However, the UK is committed to retreat from the EU level, including from internal market membership. At the time of writing, there is significant uncertainty about what (if anything) will substitute for mobility-enhancing arrangements and for traditional state-EU rescaling that has gone hand in hand with improvements in cross-border mobility. This chapter will discuss what is known so far.