To get the blocks from your inventory on the touch screen top right hand side click on the chest and it will take you to a page that shows all the blocks sort of like the picture to the left.
Continuing. I recamend using cobblestone,any type of wood plank your choice, quartz, and grass.
Now lets get on to building it. First choose your favourite type of wood plank I suggest using dark oak planks. We will start with building the perimeter of the mansion I suggest making huge squares.
Continuing. Make huge squares out of the type of wood, but make sure there is no walls blocking the walk ways in the mansion make sure it is all clear, and make sure to make it 1 block high.
On every wood block place 20 cobblestone blocks high on top. Make sure to block of 1 wall for the porch area but leave a 2 block high space some where in the wall that is on the ground.
Continuing. Leave the 2 blocks high open because that is where the door for the porch area will be going.Make sure to build floors for your mansion so go to the first cobblestone block and place wood.
Continuing. Place wood blocks on the 5th and the 4th from the top block and then build until the entire level is done.
Continuing. Time to build a roof on the very top block of the mansion place cobblestone blocks covering every space in the top.
Continuing. Don't forget to make a arch at the front entrance way to give the mansion a more cooler look.
Build quartz blocks on every other block on the arch, and make some pillars around the mansion.
When you are done building the mansion it is time to put some decoration like carpet, lights, music box, enchantment tables, anvils, crafting tables, chests, tables, paintings, and beds, and bedrooms.
THIS IS THE END THANK YOU FOR READING MY GUIDE ON HOW TO BUILD A MANSION IN MINE CRAFT THANK YOU AGAIN!!!