CC and OC are two of the most critical documents, a developer must obtain and a buyer must verify. They essentially mark the transition of a building from a \"construction site\" to a \"habitable home.\" While the CC ensures the project is starting on the right foot, never take possession of a flat or office space without seeing the OC. Without it, you do not “legally” own the right to reside there, and getting a home loan for a resale property without an OC is nearly impossible.