For anyone wondering, the new Omaze Windermere house is here... LA23 1JA.
I think I would like it... But there are a couple of issues for me.
The first is... the boathouse is actually down the road, not right near the house. It has a lovely upstairs sitting room and kitchenette, but no loo! So you would have to walk downstairs, along the road and to the main house if you needed the loo.
The second is... It's 2 hours from one adult child and 5 1/2 hours without stopping (so with a couple of stops nearer 7 hours) from where we, and other adult child, now live. The train journey would be about the same and necessitate several changes, so if we moved there we would rarely see them or the grandchildren as they don't drive.
I think I would need to have one fabulous holiday there and then sell it.