Since ancient times, human beings have been interested in knowing their environment in order to make the right decisions in territorial management. The spatial component is a feature of great importance in the assets that surround us. Heritage geoinformation is a convenient and effective way for management, protection and safeguarding of cultural and natural heritage. For optimal compliance, it is nowadays indispensable to rely on the use of new web technologies and geomatics knowledge that allow the documentation, visualisation, monitoring and management of heritage. Therefore, the main objective of this article is to develop a web-based cultural heritage management system in Cantón Nabón, Ecuador, as a case study. The system, consisting of a web-based geoportal accessible to the whole society, will allow consulting the geolocalised heritage information of the study area on a virtual map, as well as 3D geovisualisation in an interactive web viewer. The integrated system, once implemented, will take into consideration the preventive conservation cycle in the heritage field, highlighting, in Spanish, the creation of the heritage data models according to ISO21127:2014.