In the past I've had people ask about plans of places I design and use in my stories. I do have some as memory aids, and have no problems sharing them. However, most don't come out too well when shrunk down to a size suitable form posting on the site with the story. Some are only passable when shrunk to the size for inclusion in the e-pub or print book. However, I've now placed a bunch of good quality images of them on DropBox. Within the folder is a folder for each story, and you can open it to see the images for the story you're reading. Be warned, I'm putting images up as I create them, so there may be some for stories not yet finished, so don't get upset when you don't recognise the folder, you will, when it's finished.
Edit to add: Although I tried, some aren't to scale, due my system's limitations.
If the image isn't there, it's because I didn't make one, or I no longer have it. the URL is: