Draw the basic structure of the house using the rules on perspective and vanishing points. Add a fourth vertical line at the left for the attached garage. Sketch an X from corner to corner of the two right-hand vertical lines.
Draw a vertical line through the center to show where the top of the roof will be. Connect this line with the left point to establish the roof. Finish the right-hand side of the house with two diagonal lines that connect the top of the roof with the side of the house. Form the end of the roof of the house with a diagonal line. Draw two more diagonal lines to form the roof of the garage.