Strong Towns member @Louis Burns shares how you can use QGIS—an open-source mapping application—to calculate and visualize the tax value per acre of developments in your community. 

Find the tutorial here: https://urbanprosperity.net/how-to-calculate-and-visualize-value-per-acre-in-your-city?fbclid=IwAR1Wr8o8mR3NsRFJYgP6L9rRIUtbG7ByLsBIRLq2ziB8tio2MonmyJuM0Ug