Hi! If anyone is still looking for an accommodation I have a flat to rent. It's a two room apartment with kitchen, bathroom and a parking space. In the flat two pairs will comfortably fit in.
The flat is well-communicated with the city centre. It's 3-4 km walk from Opera Nova, which you can reach within less than half an hour by bus lines 54, 59 and 60. There is also a bike stop not far away.
Only £420 for the whole week.