Really fun idea!
Felt like the beginnings of a new RTS game, where I don't really know what's going on but I know that I will still lose days of my life to. Really like the UI and the overall layout of the game. As others have said, could do with a little more information shown on screen without having to click into a house, but the color changes were enough indication once I was able to remember what each color meant.
Overall, awesome job. Looks like you have a solid foundation to build off of. Perfect result of a game jam!