Osceola County’s Digital Transformation: Building a Transparent and Efficient Property Appraisal System with GIS

Osceola County, Florida, neighbouring Orlando's thriving economy, depends heavily on property tax revenues due to the state's absence of income tax. With a projected population growth of 40,000 residents over five years, the Osceola County Property Appraiser’s Office faced mounting pressure to optimize property appraisal processes, ensuring accuracy and transparency for taxpayers. The office’s existing GIS infrastructure, outdated by eight years, suffered from fragmented, unstandardized parcel data and inefficient manual workflows involving static paper and PDF maps.

To address these challenges, Esri and GIS consultants Bruce Harris and Associates (BHA) were engaged to modernize the system. Following a thorough needs assessment, the county transitioned to Esri’s Local Government Information Model (LGIM) and implemented commercial off-the-shelf (COTS) ArcGIS solutions. This transformation included creating a scrollable map gallery and web maps powered by clean, standardized LGIM data. The new system provided live web maps accessible across devices, automating updates and eliminating the need for manual coding.

The transformation enhanced operational efficiency, cutting parcel editing time in half and increasing parcel throughput by 50%. New web maps, such as the Residential Property Value Changes map, allowed citizens to compare property values across three consecutive years, fostering greater transparency. The initiative significantly reduced counter traffic as residents turned to digital platforms for property information, boosting public trust and confidence.