This final grade project contains information related to the FTTH network (fiber to the home) by developing the distribution network of an area. The aim of this project is to show in detail how the designs of the optical fiber distribution network are designed in different populations, observing the limitations, looking for ways to overcome them and be able to serve all the clients of the area. For the realization of this work, I have chosen an area of Girona more specifically in the municipality of Palafrugell since it currently has no optical fiber and has good characteristics to show in detail the distribution of a fiber optic network. The preparation of this work is carried out taking into account that we are a new telephone operator, establishing a first chapter that explains in detail the design criteria trying to cover all the possible diferent situations to finish the project designing it and explaining why all things are done. The network described in this work will allow end users to obtain high performance coverage (100 Mbps speed is guaranteed in all households with fiber coverage) and optimization of the infrastructure of the new network. We will mark a balance between high performance, adequate sizing and adequate development guarantees also triying the reduction of maintenance