Planimetrics are building outlines, sidewalks outlines, etc. created using orthophotos. The 2011, 2014 and 2017 building footprints were used as a base for the 2020 planimetrics. The 2020 planimetrics were updated using digital orthophotography that was flown in July 2020. The orthos have been registered to the terrain at National Map Accuracy standards. Planimetrics has been licensed to the County by Sanborn Mapping Company, Inc. The license agreement only allows certain organizations to directly access the data. Any of the data can be produced in paper copy and distributed to the public. Digital copies of the data are not permitted. Users should note the scale of photography (1:900) and use the data appropriately. Please also note that the orthos have a better horizontal accuracy than some of the current GIS data in County View. The vertical datum for this data is North American Vertical Datum of 1988. If you are using NAD 29 as your vertical datum the elevations are going to be 3.5 feet too high and you will need to lower the elevation by 3.5 ft.