What is stucco? Basically it is a plaster that can be added to the outside or inside walls and structures to hide the building materials below it. This gives the building a finished surface to paint or seal, and to cover less visually appealing construction materials, such as metal, concrete, cinder block, or clay brick and adobe. This process is used throughout the world and throughout human history. This instructional will hopefully help you recreate this painted look on your models with ease.
Here is the tutorial for download: