/diy/ - Do It Yourself

My dad is looking for an inexpensive, stand alone program for documenting the electrical wiring in his house. Apparently everything at the low end of the market is pretty much just line drawing software with some symbols while everything at the high end costs five figures or more and have annual fees. The house was built in 1901 and has had several additions. Before he bought the house, it went through at least two phases of being wired up with whatever was common at the time (he's guessing 1920s and 1950s). Dad has done his own electrical work in the decades he has owned the house, all of which was properly permitted and inspected (he's not an electrician but he's nerdy enough to read up on code and stick to it). Some of the old stuff was replaced but apparently the county doesn't require everything to be brought up to code like some places do.
I think what he's looking for is a way to document all of the circuits in the house, what kind of wiring is on each, all the branches, outlets, and loads so he can do "what-if" type scenarios for adding to the system or redoing parts of it. I don't know what he's willing to pay but I'd guess under $500 and for it to be a one time purchase.