Urban life has been repeatedly described as being constraining. What is the impact of living in a metropolis on interpersonal relationships? Data on the extend of the relationship network and the way of relating of Parisians, suburbians and inhabitants of a minor town were collected by standardized interviews. 302 heads of family, half of them having the possibility to escape for week-ends (second home, family house), described their relationship network, the origin of each relation and the modalities of frequentation. Results show that urban constraints, and specifically the short free-time left to people living in Paris and its suburbs, results in adjusting relational behaviour. Difficulties to interact frequently with the traditional friendship network is compensated by an increase in local sociability. The number of relations originated in neighborhood associations and workplace is much higher for the parisians and suburbians than for the inhabitants of the small town. Furthermore, urbanites meet their friends less spontaneously, even when they keep as many relationships as people living in smaller towns. Only those who have the opportunity to escape have a mean number of relations similar to the small town inhabitants, and they meet their friends prefencially on week-ends out of town.