All the rooms still vanilla, the walls and floors are fix with vanilla & vanilla DLC material.
When you want to have the tree near the house, like on the Pictures, choose "Import Original Items (not build by the Player)
See the Pictures for Details.
You Need this to work:
http://www.nexusmods.com/fallout4/mods/22442/?
For maual Installation, simply put the file in: Your Storage Device :\STEAM\SteamApps\common\Fallout 4\Data\F4SE\Plugins\TransferSettlements\blueprints\1...(or the number you like between 1 and 10).
For automatic Installation use NMM.
For further descriptions, read the maual on the "Transfer Settlements" Mod.