If you wish to to build freely, as well as add resources, citizens, change time of year, change the color of fog and lighting, cause disasters etc., you need the debug menu. And you shall have it if you download this mod.
Banished PLUS... Well this is mod which contains many other ideas I saw from other mods and my personal affinity to play. I like to play on hard difficulty small mountain maps, and as you know there is always lack of space for buildings