Build mode will allow you to create the house of your dreams. You can build a new room, buy doors, windows, floors, and wardrobes. There are also tools for painting walls and roofs. Remember that you have to pay for all of this with the money you earned. Most of these items will be unlocked only after reaching a given experienced level.
In The Sims Mobile, you cannot create walls freely. Every few style levels you will unlock a new room. These rooms may have a square or rectangular construction. To create a room, simply enter the "rooms" section and place it on the ground. To adjust its size it is enough to drag its walls to the desired direction.
Windows and doors
When choosing the doors and windows for your apartment, each wall of the house will be raised. Most windows and doors are available only at high experienced levels - approx. 20. These parts of the house work in a specific way - you can buy 20 copies of a given type. In addition, each subsequent copy of a given item is more expensive.
Wardrobes and countertops
In this menu, you can browse and purchase countertops and wardrobes. In this case, you can buy up to 10 pieces of each type. The wardrobes also become more expensive with each consecutive purchase. Each style of furniture has several different types to choose from, e.g. a standard counter, an end counter, an inner corner counter, and an outer corner counter.
If you want to improve the look of your home, laying new floors might be a good way of doing so. In the "floor" section you will find stone, tiles and linoleum, carpets and floorboards. New floors need to be bought. However, if you buy a particular design for one room, you can use it in the next room without paying anything.
In The Sims Mobile, you can paint both the exterior and interior of your walls. Each of them has their own sections. Buying wall paint works the same as purchasing different types of floors. If you buy a particular design for a certain room, you do not have to pay for it a second time. When you are painting the walls, they remain raised, so you may not always see the floor at the same time.
There are only 3 types of roofs in The Sims Mobile. They do not cost anything. You do not build them on your own. Simply click on the roof style of your choice and the game will automatically apply it to your home. You must pay for the color of the roof, however.