A cadastral survey is a property boundary survey. It is carried out to identify and mark out the property boundary of a parcel of land as described in a deed. It is recommended to carry out a cadastral survey before buying, subdividing or altering a parcel of land for better assurance that your development is being built within your property boundaries. 

In Singapore, the Land Surveyors Act regulates the conduct of land boundary surveys. Cadastral surveying has to be undertaken by the licensed or registered surveyors. The Land Surveyors Board specify the duties and responsibilities of these surveyors and set the qualifications for registration. 

A cadastral survey plan has to be submitted by the Registered Surveyor to the Chief Surveyor for approval. The Registered Surveyor will deposit survey documents to the Survey Department at the Singapore Land Authority. On approval of the survey plans, only the Chief Surveyor is able to update the cadastral database and produce the cadastral maps under the Boundaries and Survey Maps Act.