§1. A parochial vicar is obliged to reside in the parish or, if he has been appointed for different parishes jointly, in one of them. Nevertheless, for a just cause the local ordinary can allow him to reside elsewhere, especially in a house shared by several presbyters, provided that this is not detrimental to the performance of his pastoral functions.
§2. The local ordinary is to take care that some manner of common life in the rectory is fostered between the pastor and the vicars where this can be done.
§3. A parochial vicar possesses the same right as a pastor concerning the time of vacation.
Source: Code of Canon Law (Vatican.va)