GebäudeCheck is software from PLAN4 for assessing existing buildings. Users record the condition of a building on site with a tablet app, after which the software derives renovation needs and costs and plans investments over several years. There are modules for an automatic initial assessment, portfolio screening, building condition assessment, energy renovation, and reporting with export. The software targets municipalities and other property owners, expert assessors and architects. Data from the browser and the app is synchronised.
PLAN4 Software GmbH is based in Freiburg, Germany. According to its website, several investors hold shares in the company; no single majority owner is named, so no foreign parent company has been established. In 2025 the company received an investment from Knight Capital and existing investors. The sources do not say where the data is hosted. Ask about the hosting location, sub-processors and the data processing agreement. For a European public body this is a German vendor; you should confirm the hosting location yourself.