To me, one partner dictating to the other about who they may or may not see is a massive red flag. Whether it is family, friends or whomever - unless there is a genuine reason why seeing them is harmful it should be up to you if you see them or not. Nobody would stop me from seeing my children, and I would struggle to love anyone who wanted to try.
The question of how often is one that you and your husband need to discuss, though. As 52Bright points out, it is not really clear whether you are seeing each of your daughters separately once a week, or spending one day a week in total with them. If it's the former it does, I think, make a difference. Not to whether or not you should see them, but to how much time you and your husband have together.
I would not be happy if my husband bought a house miles away from me. Doing so would make a massive dent in our shared finances, however, so it would be a dealbreaker for me, and I wouldn't dream of spending that sort of money without discussing it with him either. Maybe if you and your husband have enough spare cash to absorb expenditure like that you see it differently, though.
Even so, the distance involved, and the fact that a house is to live in is important - it's not just the money, it's the fact that he is buying somewhere to live in without you.
It does sound as though you have very separate lives, financially, emotionally and geographically. How do you feel about him? That hasn't really been discussed. If he did leave, how would you feel about it, and would you be ok financially?