As you explore the land you will be able to craft items from the resources you collect. To begin with these will be basic resources such as wood, stone, clay, and straw but as you progress further into the game more advanced resources such as iron, orbs and crystals will become available. Once you have collected enough resources you will be able to build your own house on the island.
To build the actual house is quite easy and should take you about 10-20 minutes if you have the resources you need. The first thing you need to do to build a house is create a hearth, this requires a hearth cornerstone which you can craft with 100 stone and 100 wood pieces. To craft items you need to tap the crafting button on the upper-right corner of the screen followed by the hand icon. From here you will be able to choose items from the top list of sections. Scroll down the list of items and under 'Hearth & Tribe' tap the blue colour hearth cornerestone and tap 'Make'. Once the hearth cornerstone has been crafted place it in the shortcut bar and from there tap it, the game will now prompt you to create hearth. You will now need to name your hearth, pick an emblem and choose the initial building design before you can tap the 'Apply & Create' button.
Now that your hearth has been created return to the play screen and tap the cornerstone. You now need to find a good piece of land to place the hearth. Once placed, go inside and tap the build icon on your screen to access the design tap where you can design your home. You will now be able to select items from the shortcut bar and then tap on the construction area to place. By tapping the layout buttons you will be able to switch between items. You will be presented with items such as floors, roof, walls, fences, doors, and stairs and you will be able to build them as long as you have the required resources. To get more details on what particular resource you need to build an item you just have to tap the plus icon on it.