How long does it normally take you to build a Sim house?

Usually, If I'm building something. It's to improve a sim's house. I converted the barn of the Lexington to be a garage with a games room upstairs. I've also recently added a gothic room which holds the alchemy and magical stuff. I've even moved the portal to a pillared area. One of my finest achievements is building a lecture hall in Appaloosa Plains, complete with podium and whiteboard. could actually double up as a wedding venue.