To sell an off-plan property before completion, you typically need to have paid a certain percentage of the property’s value (usually around 30-40%) and obtain a No Objection Certificate (NOC) from the developer, once you have a buyer and have agreed a price then you will both have to Visit the DLD or its authorized centers and transfer the property officially to the buyer’s name, usually you will have a broker with you to assist and guide you through the process.