Aerial photography is also useful in showing land that is open for development to potential investors. Companies that are interested in building homes, businesses, resorts, schools, or other structures on a piece of land need to have an accurate understanding of its size to make their plans. Developers also need to be aware of the surrounding landscape and factors such as roads and other buildings that would influence their plans. Aerial photography also allows developers to monitor the progress of a project as it is being brought to fruition.