No space? No problem!

Space here is at a premium with every bit of available space maximised, but these two houses take it to the extreme.  

I imagine you would be able to touch both sides of the room you were standing in! And you would really, REALLY have to get on with your neighbour ;) 

Thank you everyone who participated in yesterday's bottle quiz! The correct answer is feral cats. But I like some of your ideas better ;)