This is one reason I refused 2 job offers I got in the past. According to the agents I talked to, the job was somewhere near London. They both offered me the same thing like what you told here. One guy even told me that I should just rent near the place of work and stay there during weekdays and then go back home here in North Wales every weekends. He said that a lot do that. It might be easier if I'm a British citizen as well, but I'm under an immigration control. Besides, I came here to live with my husband and not be with him just during weekdays. It's not worth it even with the salary they offered me (it will not be enough with rent costs or moving near there) and most importantly, I don't want to risk my visa.