and some more, note that building plans are usually called "floor plans" or "building elevations"....the word blueprint isnt usually used.
https://www.google.com.au/images?um=1...=&oq=&gs_rfai=
https://www.google.com.au/images?um=1...=&oq=&gs_rfai=
hope I have helped thus far mate
cheers bullet
bullet1968
"A Darkness at Sethanon", a book I aspire to model some of the charcters and scenes