This business plan is the result of a viability study of a beauty salon in the campus of the Pontificia Universidade Católica of Rio de Janeiro. At the beginning, the salon will only offer manicure and pedicure services to its customers, which are the female students, teachers and employees of the University itself. In order to provide the necessities of the customers, it is necessary to deep the knowledge of the enterprise s characteristics, , the services to be offered, and the public-target to which these services are to be rendered. In these conditions, there have been boarded matters like the consumers behavior, marketing service, market segmentation and so on. Finally, in relation to the financial viability of the enterprise, four scenes had been projected taking into account the variations of the demand and of the rent to be paid to PUC.