The console commands below will give you ownership of the three plots of land and all of the required materials to build the houses. You will be hugely over encumbered but the "tgm" command will bypass that.
For this achievement you have to fully build one house, so build the small house, the main hall and the three wings. For "Master Architect" you need to do the same for all three houses.
player.additem f 15000
setstage byohhousepale 100
setstage BYOHHouseHjaalmarch 100
setstage BYOHHouseFalkreath 100
player.additem 03003043 1000
player.additem 0300306c 1000
player.additem 03005A69 1000
player.additem 0300300e 1000
player.additem 03003011 1000
player.additem 03003035 1000
player.additem 03003012 1000
player.additem 0300300f 1000
You can travel to them using following.