Looking to re-locate from Scotland

My partner and I are looking to re-locate after my partner being offered a job with British Airways at London Heathrow. We are a young professional couple, ideally looking for a flat to ourselves but are open to sharing too.
We are interested in a clean, comfortable accommodation in a safe and well connected location. Since we are both working professionals we would ideally be looking to live with similar flatmates. We are both quiet but sociable individuals, I am from Scotland and my partner is Spanish.