Survey. In many cases survey is providing with the house, but in some case it is essential to get survey from licensed specialist. Survey is a written document, given to the property by licensed specialist to provide full information about your piece of land. It will outline where city lines are, total area of the property, what are the registered buildings on your property and their dimensions. Once you have this document you can plan your future construction and find out if it’s possible to avoid committee of adjustment.