WANTED: 3-week accomodation

I'm a master's student whose contract finishes on 28th August. However my course finishes on the 21st September. My research requires use of university resources. That's why I'd like short stay accomodation near the National Oceanography Centre/City Centre from the end of August. I am happy to occupy an empty room before someone moves in/ signs a contract. In terms of habits: I'm quiet and usually return late. I am quite adaptable as comfort is not my priority now.live with any number of people(I had to choose 3 below because it was compulsory to choose number of housemates). I hope we can discuss to see if we can come to an agreement.