Lorena is looking for: An Apartment / HouseBoat in Utrecht

We are a couple with a small cat. We are respectively 27 years old (Diego) and I am 31. We have been living in Amsterdam since long time now(my boyfriend Diego has been living in Nederlands since he was 15 with his family and I moved here 5 years ago). My boyfriend works as Manager in one of the Burger Bar in town, while I work as crew member in one of Le pan Quotidienne's store. We are really easy going, quiet and busy couple. I am trying to apply to a Master at university of Utrecht too, so in my free time I mostly stay home to study, while Diego spends his time with work at home too or reading, watching movies and playing games.
We are looking for a place because my boyfriend received a job offer in the same company but in Utrecht.
We have been living in the same apartament for four years. We are pretty clean, neat and responsible. We like to party,enjoy activities and be with friends but we prefer to do that outside, where there is someone else who cleans up . We are not clutter/dirt lovers, especially at home.
We would like to find a place close to center with a rental price that goes from 900 euros to a max of 1100,preferably with an area of 50+ meters square.