The Joint Minorities Development Program (JMDP) was a joint enterprise of Organizing and Supportive Agency, Inc. (OSA) and Human Interest Regarding Employment/Minorities Action Coalition (HIRE/MAC) to train black construction workers and organize them into a self-supportive construction cooperative. JMDP evolved in three stages. The first phase was the construction of an experimental modular home. The second involved program development, operation, and change of direction from modular to conventional house building. A major difficulty was found in meeting the training needs of the men. The third phase was the actual building of a house, characterized by increasing labor dissatisfaction and lack of coordination between the many organizations involved. It is concluded that JMDP was a qualitative if not a notably quantitative success. A small and cohesive group eventually survived and profited from the experience. As a pilot program the project offers valuable background for similar ventures. (MS)