Buildings are some of the most valuable assets of any nation, in the sense that they provide people shelter, places to work and leisure, and so many others functions. With the rising costs of new buildings, the need for Building Maintenance (BM), has become even more relevant, since it allows the qualification of the built portfolio, helps boosting the economy, upgrades life well-being of users, as well as the appreciation of spaces in generally. BM, when seen in a structured way, is currently making significant progresses; although, regarding buildings, there seems to be a need for further development. However, the widespread perception is that Maintenance Actions (MA) are still, in their generality, reactive, consisting of corrective actions, major reforms and unscheduled interventions, carried out mainly on the basis of the available budgets, with the main objective of restoring the operational status of elements and the normal utilisation conditions. While in the equipment sector, still are the experience, the evaluations and the recommendations of the manufacturers the most decisive aspects for the type and frequency of maintenance operations, at the level of constructive elements of buildings, this practice is, nevertheless, already making positive developments, although it is still bluntly far from what would be desirable. Therefore, regarding the buildings’ subject, there are aspects needing improvements towards more sustainable ways of acting and thinking. The main objective of this thesis is the presentation of the general lines of a broad and integrated model, developed for BMM, that is, a base algorithm for an Information System for Automatisation of Procedures in the BMM, referred to in an abbreviated form as SIAPME (initials in Portuguese). By establishing himself as an additional contribution to deepen knowledge on the subject of BMM, this model thus proposes a set of methodological actions - which, when used by an organisation of this sector of activity (regardless of its size), will, in theory, allow the management process to develop in a more sustainable manner. This, both from an operational and the information integration point of view and in line with the current technological and scientific challenges. For the above purpose, this thesis gathers a selection of scientific articles, arranged through a sequence that was deemed to be the most coherent. In this perspective, its presentation is established in line with the development of study and research work carried out in recent years. The methodology followed involved a broad literature review as well as the selection and treatment of information considered most important for the purposes. Literature was gathered relying mostly on repositories, institutional sites, Internet search engines, etc. MS Excel capabilities were also used, both for treatment of numerical data (when necessary) as for systematising knowledge and ideas, particularly in order to design the SIAPME algorithm - which was based on the elaboration and presentation of a vast set of organisation charts and flow charts, inserted in several sheets, with hyperlinks to each other. Visual Basic was also used to develop the experimental adaptation of the Resources Management function foreseen in SIAPME model. The overall results achieved from this model seem to be quite positive, especially when compared to similar cases. For development of SIAPME, a concise and in-depth state of the art has been carried out, available in an organised manner; also, an innovative design algorithm for GME has been succeeded, planned to be quite broad and with a larger capacity of information storage that many of current models seem to lack. It is believed that after an eventual SIAPME evolving process to an informatics tool, it may present transversal characteristics to the previously considered ratings of CAFM and CMMS systems, basically covering every single aspects of its application categories, those being building management, space management, etc. Overall, it is believed that the results of this study could make significant contribution towards a paradigm shift regarding the way BMM is still seen and practised.