Students may stay at one of the two University mixed Residence Halls or rent a private room/house in Cartagena or the surrounding area. The University Residence Halls were built in 1982 and are located about 100 metres from the Alfonso XIII University Campus.
They are open year-round except August and have a total of 196 fully furnished single rooms. The Residence Halls also offer a wide range of services: restaurant, cafeteria, library, reading areas and recreation rooms. The approximate cost of accommodation ranges from 3.819 € to 4.281 € per year. Breakfast, lunch and evening meals (except weekend evening meals) are included in the price.
https://www.upct.es/~ruac/en/
The International Relations Office will help you find accommodations in rented flats, sharing with other students. Rooms cost approximately 150 € per month.
Finally, in addition to rent, students usually need around 300 € per month to cover other costs including food, transport, etc. Expenses for study materials (books, photocopies, notes) depend on the programme and vary greatly.