1. A method of assessing changes to a region, the method comprising: receiving elevation data indicative of a region; generating a spatial model of the region based on the elevation data; determining, based on changes in the elevation data represented in the spatial model, a first representation of a structure in the region, wherein the first representation is indicative of the structure at a first time; receiving, from a tax assessment database, tax related data associated with a property parcel and comprising dimensions of the structure, wherein the dimensions are determined for assessing a tax on the property parcel at a time prior to the first time; generating, based on the tax related data, a second representation of the structure in a spatial coordinate system compatible with the spatial model of the region; determining, by a computing device, a difference between the first representation of the structure and the second representation of the structure; and providing, based on determining the difference between the first representation of the structure and the second representation of the structure, an update to the tax related data.