Project. I found a huge size paper project in Lviv archive, and copied what I could. I could not copy the whole sheet, so project is divided into pages.
Here it consists of many pages but in reality this is a single huge sheet. I just couldn't find an equipment to scan it as is.
Other Documents
I also found some documents related to the building. Including request to Lviv city hall, permission given to building owner by city hall, and so on.