A text was needed to synthesize the current situation of sustainability in the real estate sector and, more precisely, in the valuation sector. This book is an approach from different perspectives, which converge on the unifying theme of real estate valuation.

Sustainability has a short and intense history, starting from the ideas of corporate social responsibility after the economic crises and world wars, to the concretion in the environmental, social and governance criteria, known internationally by the acronym ESG.

This history does not follow a linear process, but suffers advances and setbacks, always in a line of increasingly widespread acceptance of sustainability as a form of business management, in the sense of adding value to the shareholder. But it can also be an end in itself within the purpose of the company, when shareholders and executives align with the principles that arise from international agreements for sustainable development, and in our environment the European agreements that refer mainly to the environment, and that have been specified in directives, legislation and good practices within the EU.