For single floor homes with a basement the basement may be the best path.
Cat5 attic to basement.
Install coaxial cable cable tv or satellite tv cables concealed in wall spaces from non living spaces above or below.
Cat 5 6 ethernet cables siamese cables and plug and play cables.
These methods will work for any cable.
My cable tv is distributed through the attic so it seemed like a good solution to run my home network through there as well.
Lets find out if you re lucky.
You should have a plumbing vent stack that goes from the basement all the way up through the roof take a look in the basement see if the hole in the first floor.
Cat 5 6 ethernet cables this type of security camera wires transmits the video image data and power via a single cable.