I like to clean in video games, but not so much to decorate, personally, unless it's a social game. You could take a look at the video game Viscera Cleanup Detail, it's about cleaning, maybe it will give you some ideas.

Here's a video of Viscera Cleanup Detail

I also made a video, about cleaning in Half Life 2, maybe it will give you some ideas. You can also make a mod in half life 2 about cleaning. There's a mod where you break boxes which is fun.

Here's the video i made
Here's the too many crates mod
https://www.moddb.com/mods/too-many-crates

Ohhh, also, you can make a multiplayer game where people chat and can put videos on youtube on a screen. There, they can decorate their house with whichever assets they want.

In Pimp my Land, maybe the wood and metal can be recycled, used to build stuff or something. I like the animation when the truck comes and the models.

The mechanics, walking could be a little faster. And when you scrap wood or metal, maybe you can make it so i can press a bunch of buttons, like i'm scraping it in real life, like for example the buttons FRTG FRTG FRTG.

Maybe you can add more ways of disposing of trash instead of just the dumpster.

Decorating, you can either make it after a plan, like decorate the place after a plan/scheme/map thing, or you can make it like in the game Passpartout game, where you decorate the place and people come to buy the place, and they see if they like it.
 
Here's a video of the Pimp My Land game, where i played it, if you need it. Link expires in 7 days.
https://www.transfernow.net/dl/20241007YQqjunYR

Just giving you feedback, ideas