BUILD UP is a building energy efficiency portal, which was aiming for a new branding for both the website and mobile app. In this project I developed the wireframes, as well as the stylescape, style guide, mockups and responsive version of the website. The BUILD UP, being directly part of the European Commission, all its platforms had to follow the AA accessibility level, and for the development of these it was necessary to guide me through the standards of both the European Union and the European Commission components.