I think those beehouses are for people up north, in the south if you dont have enough ventalation you might could cook your hives especially when it hit 100+ degree's, looks like from the pictures they have some kind of long hive, it says it is in london so there aint know telling.
That is a good point... would definately need some good ventilation... I just like how you could check the hive in pouring rain if you wanted to... and how it's tucked neatly inside... I would definately leave the top row of hives off if I did something similar... and only put hives on one side... and maybe put my hens on the other side... that would be cool, I could get eggs and check the hives at the same time. I don't think so many bees would be flying around inside when you check the hives... as many of the flyers would be using the entrance, and once they fly out the door, I don't think they'd come back in... plus the chooks would eat the stragglers... You could even put a couple of bumble-bee nests under it, for a broader pollination effect.