The first thing to do is figure out how you want to approach Land, as we near "Land 2.0"

I have broken it down into a few thoughts:

1. Casual Landowner - buy a couple Land, put some PP on them, roll the dice
2. Min/Max Resource Guy - focus on 1 Resource and MAX it out
3. Self Sufficient Landbro - gather several resource plots to make what you need
4. Landlord - try to gather all the plots in one Tract/Region or try to obtain a bunch of Keeps/Castles

If you want to start producing Resources from that Plot you can build on it and stake cards to it now... or wait until Land 2.0 comes out... ultimately it's up to you...

But if you mean "I don't know where to start with this Plot or what to do in order to build upon it"... let me know and I'll write something up to show you :)