FWIW, you can get a pretty high res version of the BBAU house exterior on Apple Maps 3D. I scaled it down and compressed it to shit in the attachment below to get it to upload in the first place but you get the idea. Could serve as a higher resolution base to start off with. I might even take a crack at it myself, I don't have Adobe Illustrator anymore though so maybe this will be good practice with Affinity Designer to try and estimate the layout.
Also, my thoughts on the layouts posted above: I always thought going down the hallway on the left hand side the bathroom would be the first door, green room 2nd and eviction room 3rd. On the right hand side would be the exit/entrance to the challenge area (part of the top right warehouse?) and the diary room. But this is all up in the air unless we get an official layout, I've even gone as far as to ask the BBAU twitter account for a floorplan/layout and some other behind the scenes stuff but I seriously doubt that they're gonna release one now the series is over. Still, one can dream!
