Leased and owned real estate assets are potential tools to reflect the value, image and objectives of the companies, because, among other reasons, they are the premises where the human talent of the enterprises is hidden. The present study arises from the needs of one international company, with mostly leased real estate assets, to understand the relevance of lease management towards the achievement of strategical benefits and savings, and to evaluate how well the current system used to manage these properties is performing. An initial state of the art in relation with corporate real estate and lease management was done to understand the bases of these functions. This set up the lines to analyse and extract relevant information from the companies’ portfolio through the facilitated lease contracts to propose ways to enhance their performance through lease management. It was identified that the company should consider the application of certain measures and clauses for improving the current leased properties in terms of sustainability and also that, regarding new acquisitions, the tenancy conditions could be enhanced in terms of sustainability and some exit strategies through future lease negotiations. The evaluation of the mentioned management system based on Excel leaded to the analysis of the existing market options and implementation methods on lease management tools, to understand if a better way of managing the portfolio was feasible. Online demos were made to understand the vendor’s offers. As part from these tools, further programs already used by the company and that appeared as candidates were evaluated (Jira and Confluence). After comparing the alternatives from different points of view, it was found that the current system was not sustainable, and the real estate software platform from Archibus was proposed as the solution for the company to move forward in terms of software tools.