Okay, it's a Video Game, but pretty relaxing. There's no Winning or Losing, you just build a town at your own pace. The Video below moves along much faster than you'd play it, but it shows some of the things you can do.
Here's the Website. Here it is on Steam.
Start small:
Image Source: steamcrackedgames.com
Finish (well, I don't think you ever have to 'finish') big:
Image Source: reddit.com
Looks very similar to Dorfromantik on Steam.
Looks like something I might enjoy. Thanks, Mike! 🤗