A building system including one or more memory devices configured to store instructions thereon, the instructions causing one or more processors to generate a space graph based on building data, generate a control algorithm based on the space graph and operate one or more pieces of building equipment based on the control algorithm, and receive new building data from one or more building data sources. The instructions cause the one or more processors to generate one or more new relationships between a first entity of entities and a second entity of the entities, update the space graph with the new relationship by causing the space graph to store a new edge between a first node of nodes representing the first entity and a second node of the nodes representing the second entity, and update the control algorithm based on the new edge of the updated space graph.