Create an adobe paste by mixing adobe soil and water into a paste. Good adobe soil is mostly sand, with a 40 percent or less clay and silt content. Mix a small amount of straw into the paste. Form the paste into small bricks. Allow the bricks to dry in the sun until the adobe is hard.
Stack the bricks in a square shape to form the walls of one unit.
Spread wet adobe over the outside and inside of the walls to create a smooth surface.
Create a floor from adobe bricks or a layer of wet adobe.
Place wooden poles upright along the inside walls to support the roof. Lay wooden beams and poles across the walls to create a ceiling. Cover the roof with wet adobe to create a hard roof.
Create multiple units side by side and vertically stacked to form a pueblo complex.
Add ladders and stairs made of sticks. This adds authenticity to the model and provides access to the upstairs units.